CHANGELOG.md

Release v1.12.7 (2022-01-31)
----------------------------

### Features & Improvements

- If no command is given to `pdm run`, it will run the Python REPL. [#856](https://github.com/pdm-project/pdm/issues/856)

### Bug Fixes

- Fix the hash calculation when generating `direct_url.json` for a local pre-built wheel. [#861](https://github.com/pdm-project/pdm/issues/861)
- PDM no longer migrates project meta silently. [#867](https://github.com/pdm-project/pdm/issues/867)

### Dependencies

- Pin `pip<22.0`. [#874](https://github.com/pdm-project/pdm/issues/874)

### Miscellany

- Reduce the number of tests that require network, and mark the rest with `network` marker. [#858](https://github.com/pdm-project/pdm/issues/858)


Release v1.12.6 (2022-01-12)
----------------------------

### Bug Fixes

- Fix a bug that cache dir isn't created. [#843](https://github.com/pdm-project/pdm/issues/843)


Release v1.12.5 (2022-01-11)
----------------------------

### Bug Fixes

- Fix a resolution error that dots in the package name are normalized to `-` unexpectedly. [#853](https://github.com/pdm-project/pdm/issues/853)


Release v1.12.4 (2022-01-11)
----------------------------

### Features & Improvements

- Remember the last selection in `use` command to save the human effort.
  And introduce an `-i` option to ignored that remembered value. [#846](https://github.com/pdm-project/pdm/issues/846)

### Bug Fixes

- Fix a bug of uninstall crash when the package has directories in `RECORD`. [#847](https://github.com/pdm-project/pdm/issues/847)
- Fix the `ModuleNotFoundError` during uninstall when the modules required are removed. [#850](https://github.com/pdm-project/pdm/issues/850)


Release v1.12.3 (2022-01-07)
----------------------------

### Features & Improvements

- Support setting Python path in global configuration. [#842](https://github.com/pdm-project/pdm/issues/842)

### Bug Fixes

- Lowercase the package names in the lock file make it more stable. [#836](https://github.com/pdm-project/pdm/issues/836)
- Show the packages to be updated in dry run mode of `pdm update` even if `--no-sync` is passed. [#837](https://github.com/pdm-project/pdm/issues/837)
- Improve the robustness of update check code. [#841](https://github.com/pdm-project/pdm/issues/841)
- Fix a bug that export result has environment markers that don't apply for all requirements. [#843](https://github.com/pdm-project/pdm/issues/843)


Release v1.12.2 (2021-12-30)
----------------------------

### Features & Improvements

- Allow changing the installation linking method by `feature.install_cache_method` config. [#822](https://github.com/pdm-project/pdm/issues/822)

### Bug Fixes

- Fix a bug that namespace packages can't be symlinked to the cache due to existing links. [#820](https://github.com/pdm-project/pdm/issues/820)
- Make PDM generated pth files processed as early as possible. [#821](https://github.com/pdm-project/pdm/issues/821)
- Fix a UnicodeDecodeError for subprocess logger under Windows/GBK. [#823](https://github.com/pdm-project/pdm/issues/823)


Release v1.12.1 (2021-12-24)
----------------------------

### Bug Fixes

- Don't symlink pycaches to the target place. [#817](https://github.com/pdm-project/pdm/issues/817)


Release v1.12.0 (2021-12-22)
----------------------------

### Features & Improvements

- Add `lock --refresh` to update the hash stored with the lock file without updating the pinned versions. [#642](https://github.com/pdm-project/pdm/issues/642)
- Support resolution overriding in the `[tool.pdm.overrides]` table. [#790](https://github.com/pdm-project/pdm/issues/790)
- Add support for signals for basic operations, now including `post_init`, `pre_lock`, `post_lock`, `pre_install` and `post_install`. [#798](https://github.com/pdm-project/pdm/issues/798)
- Add `install --check` to check if the lock file is up to date. [#810](https://github.com/pdm-project/pdm/issues/810)
- Use symlinks to cache installed packages when it is supported by the file system. [#814](https://github.com/pdm-project/pdm/issues/814)

### Bug Fixes

- Fix a bug that candidates from urls are rejected by the `allow_prereleases` setting.
  Now non-named requirements are resolved earlier than pinned requirements. [#799](https://github.com/pdm-project/pdm/issues/799)

### Improved Documentation

- Add a new doc page: **API reference**. [#802](https://github.com/pdm-project/pdm/issues/802)

### Dependencies

- Switch back from `atoml` to `tomlkit` as the style-preserving TOML parser. The latter has supported TOML v1.0.0. [#809](https://github.com/pdm-project/pdm/issues/809)

### Miscellany

- Cache the latest version of PDM for one week to reduce the request frequency. [#800](https://github.com/pdm-project/pdm/issues/800)


Release v1.11.3 (2021-12-15)
----------------------------

### Features & Improvements

- Change the default version save strategy to `minimum`, without upper bounds. [#787](https://github.com/pdm-project/pdm/issues/787)

### Bug Fixes

- Fix the patching of sysconfig in PEP 582 initialization script. [#796](https://github.com/pdm-project/pdm/issues/796)

### Miscellany

- Fix an installation failure of the bootstrap script on MacOS Catalina. [#793](https://github.com/pdm-project/pdm/issues/793)
- Add a basic benchmarking script. [#794](https://github.com/pdm-project/pdm/issues/794)


Release v1.11.2 (2021-12-10)
----------------------------

### Bug Fixes

- Fix the resolution order to reduce the loop number to find a conflict. [#781](https://github.com/pdm-project/pdm/issues/781)
- Patch the functions in `sysconfig` to return the PEP 582 scheme in `pdm run`. [#784](https://github.com/pdm-project/pdm/issues/784)

### Dependencies

- Remove the upper bound of version constraints for most dependencies, except for some zero-versioned ones. [#787](https://github.com/pdm-project/pdm/issues/787)


Release v1.11.1 (2021-12-08)
----------------------------

### Features & Improvements

- Support `--pre/--prelease` option for `pdm add` and `pdm update`. It will allow prereleases to be pinned. [#774](https://github.com/pdm-project/pdm/issues/774)
- Improve the error message when python is found but not meeting the python requirement. [#777](https://github.com/pdm-project/pdm/issues/777)

### Bug Fixes

- Fix a bug that `git+https` candidates cannot be resolved. [#771](https://github.com/pdm-project/pdm/issues/771)
- Fix an infinite resolution loop by resolving the top-level packages first. Also deduplicate the lines from the same requirement in the error output. [#776](https://github.com/pdm-project/pdm/issues/776)

### Miscellany

- Fix the install script to use a zipapp of virtualenv when it isn't installed. [#780](https://github.com/pdm-project/pdm/issues/780)


Release v1.11.0 (2021-11-30)
----------------------------

### Features & Improvements

- Move `version` from `[project]` table to `[tool.pdm]` table, delete `classifiers` from `dynamic`, and warn usage about the deprecated usages. [#748](https://github.com/pdm-project/pdm/issues/748)
- Add support for Conda environments in addition to Python virtual environments. [#749](https://github.com/pdm-project/pdm/issues/749)
- Add support for saving only the lower bound `x >= VERSION` when adding dependencies. [#752](https://github.com/pdm-project/pdm/issues/752)
- Improve the error message when resolution fails. [#754](https://github.com/pdm-project/pdm/issues/754)

### Bug Fixes

- Switch to self-implemented `pdm list --freeze` to fix a bug due to Pip's API change. [#533](https://github.com/pdm-project/pdm/issues/533)
- Fix an infinite loop issue when resolving candidates with incompatible `requires-python`. [#744](https://github.com/pdm-project/pdm/issues/744)
- Fix the python finder to support pyenv-win. [#745](https://github.com/pdm-project/pdm/issues/745)
- Fix the ANSI color output for Windows cmd and Powershell terminals. [#753](https://github.com/pdm-project/pdm/issues/753)

### Removals and Deprecations

- Remove `-s/--section` option from all previously supported commands. Use `-G/--group` instead. [#756](https://github.com/pdm-project/pdm/issues/756)


Release v1.10.3 (2021-11-18)
----------------------------

### Bug Fixes

- Use `importlib` to replace `imp` in the `sitecustomize` module for Python 3. [#574](https://github.com/pdm-project/pdm/issues/574)
- Fix the lib paths under non-isolated build. [#740](https://github.com/pdm-project/pdm/issues/740)
- Exclude the dependencies with extras in the result of `pdm export`. [#741](https://github.com/pdm-project/pdm/issues/741)


Release v1.10.2 (2021-11-14)
----------------------------

### Features & Improvements

- Add a new option `-s/--site-packages` to `pdm run` as well as a script config item. When it is set to `True`, site-packages from the selected interpreter will be loaded into the running environment. [#733](https://github.com/pdm-project/pdm/issues/733)

### Bug Fixes

- Now `NO_SITE_PACKAGES` isn't set in `pdm run` if the executable is out of local packages. [#733](https://github.com/pdm-project/pdm/issues/733)


Release v1.10.1 (2021-11-09)
----------------------------

### Features & Improvements

- Isolate the project environment with system site packages in `pdm run`, but keep them seen when PEP 582 is enabled. [#708](https://github.com/pdm-project/pdm/issues/708)

### Bug Fixes

- Run `pip` with `--isolated` when building wheels. In this way some env vars like `PIP_REQUIRE_VIRTUALENV` can be ignored. [#669](https://github.com/pdm-project/pdm/issues/669)
- Fix the install script to ensure `pip` is not DEBUNDLED. [#685](https://github.com/pdm-project/pdm/issues/685)
- Fix a bug that when `summary` is `None`, the lockfile can't be generated. [#719](https://github.com/pdm-project/pdm/issues/719)
- `${PROJECT_ROOT}` should be written in the URL when relative path is given. [#721](https://github.com/pdm-project/pdm/issues/721)
- Fix a bug that when project table already exists, `pdm import` can't merge the settings correctly. [#723](https://github.com/pdm-project/pdm/issues/723)


Release v1.10.0 (2021-10-25)
----------------------------

### Features & Improvements

- Add `--no-sync` option to `update` command. [#684](https://github.com/pdm-project/pdm/issues/684)
- Support `find_links` source type. It can be specified via `type` key of `[[tool.pdm.source]]` table. [#694](https://github.com/pdm-project/pdm/issues/694)
- Add `--dry-run` option to `add`, `install` and `remove` commands. [#698](https://github.com/pdm-project/pdm/issues/698)

### Bug Fixes

- Remove trailing whitespace with terminal output of tables (via `project.core.ui.display_columns`), fixing unnecessary wrapping due to / with empty lines full of spaces in case of long URLs in the last column. [#680](https://github.com/pdm-project/pdm/issues/680)
- Include files should be installed under venv's base path. [#682](https://github.com/pdm-project/pdm/issues/682)
- Ensure the value of `check_update` is boolean. [#689](https://github.com/pdm-project/pdm/issues/689)

### Improved Documentation

- Update the contributing guide, remove the usage of `setup_dev.py` in favor of `pip install`. [#676](https://github.com/pdm-project/pdm/issues/676)


Release v1.9.0 (2021-10-12)
---------------------------

### Bug Fixes

- Fix a bug that `requires-python` is not recognized in candidates evaluation. [#657](https://github.com/pdm-project/pdm/issues/657)
- Fix the path order when pdm run so that executables in local packages dir are found first. [#678](https://github.com/pdm-project/pdm/issues/678)

### Dependencies

- Update `installer` to `0.3.0`, fixing a bug that broke installation of some packages with unusual wheel files. [#653](https://github.com/pdm-project/pdm/issues/653)
- Change `packaging` and `typing-extensions` to direct dependencies. [#674](https://github.com/pdm-project/pdm/issues/674)

### Refactor

- `requires-python` now participates in the resolution as a dummy requirement. [#658](https://github.com/pdm-project/pdm/issues/658)


Release v1.8.5 (2021-09-16)
---------------------------

### Bug Fixes

- Fix the error of regex to find the shebang line. [#656](https://github.com/pdm-project/pdm/issues/656)


Release v1.8.4 (2021-09-15)
---------------------------

### Features & Improvements

- Support `--no-isolation` option for `install`, `lock`, `update`, `remove`, `sync` commands. [#640](https://github.com/pdm-project/pdm/issues/640)
- Make `project_max_depth` configurable and default to `5`. [#643](https://github.com/pdm-project/pdm/issues/643)

### Bug Fixes

- Don't try `pdm-pep517` backend on Python 2.7 when installing self as editable. [#640](https://github.com/pdm-project/pdm/issues/640)
- Fix a bug that existing shebang can't be replaced correctly. [#651](https://github.com/pdm-project/pdm/issues/651)
- Fix the version range saving for prerelease versions. [#654](https://github.com/pdm-project/pdm/issues/654)


Release v1.8.3 (2021-09-07)
---------------------------

### Features & Improvements

- Allow to build in non-isolated environment, to enable optional speedups depending on the environment. [#635](https://github.com/pdm-project/pdm/issues/635)

### Bug Fixes

- Don't copy `*-nspkg.pth` files in `install_cache` mode. It will still work without them. [#623](https://github.com/pdm-project/pdm/issues/623)


Release v1.8.2 (2021-09-01)
---------------------------

### Bug Fixes

- Fix the removal issue of standalone pyc files [#633](https://github.com/pdm-project/pdm/issues/633)


Release v1.8.1 (2021-08-26)
---------------------------

### Features & Improvements

- Add `-r/--reinstall` option to `sync` command to force re-install the existing dependencies. [#601](https://github.com/pdm-project/pdm/issues/601)
- Show update hint after every pdm command. [#603](https://github.com/pdm-project/pdm/issues/603)
- `pdm cache clear` can clear cached installations if not needed any more. [#604](https://github.com/pdm-project/pdm/issues/604)

### Bug Fixes

- Fix the editable install script so that `setuptools` won't see the dependencies under local packages. [#601](https://github.com/pdm-project/pdm/issues/601)
- Preserve the executable bit when installing wheels. [#606](https://github.com/pdm-project/pdm/issues/606)
- Write PEP 610 metadata `direct_url.json` when installing wheels. [#607](https://github.com/pdm-project/pdm/issues/607)
- Fix a bug that `*` fails to be converted as `SpecifierSet`. [#609](https://github.com/pdm-project/pdm/issues/609)

### Refactor

- Build editable packages are into wheels via PEP 660 build backend. Now all installations are unified into wheels. [#612](https://github.com/pdm-project/pdm/issues/612)


Release v1.8.0 (2021-08-16)
---------------------------

### Features & Improvements

- Added a new mode `--json` to the list command which outputs the dependency graph as a JSON document. [#583](https://github.com/pdm-project/pdm/issues/583)
- Add a new config `feature.install_cache`. When it is turned on, wheels will be installed into a centralized package repo and create `.pth` files under project packages directory to link to the cached package. [#589](https://github.com/pdm-project/pdm/issues/589)

### Bug Fixes

- Fix env vars in source URLs not being expanded in all cases. [#570](https://github.com/pdm-project/pdm/issues/570)
- Fix the weird output of `pdm show`. [#580](https://github.com/pdm-project/pdm/issues/580)
- Prefer `~/.pyenv/shims/python3` as the pyenv interpreter. [#590](https://github.com/pdm-project/pdm/issues/590)
- Fix a bug that installing will download candidates that do not match the locked hashes. [#596](https://github.com/pdm-project/pdm/issues/596)

### Improved Documentation

- Added instructions to the Contributing section for creating news fragments [#573](https://github.com/pdm-project/pdm/issues/573)

### Removals and Deprecations

- Deprecate `-s/--section` option in favor of `-G/--group`. [#591](https://github.com/pdm-project/pdm/issues/591)

### Refactor

- Switch to a self-implemented version of uninstaller. [#586](https://github.com/pdm-project/pdm/issues/586)
- `pdm/installers/installers.py` is renamed to `pdm/installers/manager.py` to be more accurate. The `Installer` class under that file is renamed to `InstallerManager` and is exposed in the `pdm.core.Core` object for overriding. The new `pdm/installers/installers.py` contains some installation implementations. [#589](https://github.com/pdm-project/pdm/issues/589)
- Switch from `pkg_resources.Distribution` to the implementation of `importlib.metadata`. [#592](https://github.com/pdm-project/pdm/issues/592)


Release v1.7.2 (2021-07-30)
---------------------------

### Bug Fixes

- Remove the existing files before installing. [#565](https://github.com/pdm-project/pdm/issues/565)
- Deduplicate the plugins list. [#566](https://github.com/pdm-project/pdm/issues/566)


Release v1.7.1 (2021-07-29)
---------------------------

### Bug Fixes

- Accept non-canonical distribution name in the wheel's dist-info directory name. [#529](https://github.com/pdm-project/pdm/issues/529)
- Prefer requirements with narrower version constraints or allowing prereleases to find matches. [#551](https://github.com/pdm-project/pdm/issues/551)
- Use the underlying real executable path for writing shebangs. [#553](https://github.com/pdm-project/pdm/issues/553)
- Fix a bug that extra markers cannot be extracted when combined with other markers with "and". [#559](https://github.com/pdm-project/pdm/issues/559)
- Fix a bug that redacted credentials in source urls get overwritten with the plain text after locking. [#561](https://github.com/pdm-project/pdm/issues/561)

### Refactor

- Use installer as the wheel installer, replacing `distlib`. [#519](https://github.com/pdm-project/pdm/issues/519)


Release v1.7.0 (2021-07-20)
---------------------------

### Features & Improvements

- Support showing individual fields by `--<field-name>` options in pdm show. When no package is given, show this project. [#527](https://github.com/pdm-project/pdm/issues/527)
- Add `--freeze` option to `pdm list` command which shows the dependencies list as pip's requirements.txt format. [#531](https://github.com/pdm-project/pdm/issues/531)

### Bug Fixes

- Fix the path manipulation on Windows, now the PEP 582 path is prepended to the `PYTHONPATH`. [#522](https://github.com/pdm-project/pdm/issues/522)
- Fix the handling of auth prompting: will try keyring in non-verbose mode. [#523](https://github.com/pdm-project/pdm/issues/523)
- Recognize old entry point name "pdm.plugin" for backward-compatibility. [#530](https://github.com/pdm-project/pdm/issues/530)
- Match the VCS scheme in case-insensitive manner. [#537](https://github.com/pdm-project/pdm/issues/537)
- Use the default permission bits when writing project files. [#542](https://github.com/pdm-project/pdm/issues/542)
- Fix the VCS url to be consistent between lock and install. [#547](https://github.com/pdm-project/pdm/issues/547)

### Improved Documentation

- Add installation instructions for Scoop. [#522](https://github.com/pdm-project/pdm/issues/522)

### Dependencies

- Update `pdm-pep517` to `0.8.0`. [#524](https://github.com/pdm-project/pdm/issues/524)
- Switch from `toml` to `tomli`. [#541](https://github.com/pdm-project/pdm/issues/541)

### Refactor

- Separate the build env into two different levels for better caching. [#541](https://github.com/pdm-project/pdm/issues/541)
- Refactor the build part into smaller functions. [#543](https://github.com/pdm-project/pdm/issues/543)


Release v1.6.4 (2021-06-23)
---------------------------

### Features & Improvements

- Extract package name from egg-info in filename when eligible. Remove the patching code of resolvelib's inner class. [#441](https://github.com/pdm-project/pdm/issues/441)
- Support installing packages from subdiretories of VCS repository. [#507](https://github.com/pdm-project/pdm/issues/507)
- Add an install script to bootstrap PDM quickly without help of other tools. Modify docs to recommend this installation method. [#508](https://github.com/pdm-project/pdm/issues/508)
- Add a new subcommand `plugin` to manage pdm plugins, including `add`, `remove` and `list` commands. [#510](https://github.com/pdm-project/pdm/issues/510)

### Bug Fixes

- Don't monkeypatch the internal class of `resolvelib` any more. This makes PDM more stable across updates of sub-dependencies. [#515](https://github.com/pdm-project/pdm/issues/515)

### Miscellany

- Clear the type errors from mypy. [#261](https://github.com/pdm-project/pdm/issues/261)


Release v1.6.3 (2021-06-17)
---------------------------

### Features & Improvements

- Add an option `-u/--unconstrained` to support unconstraining version specifiers when adding packages. [#501](https://github.com/pdm-project/pdm/issues/501)

### Bug Fixes

- Fix the format of dependency arrays when a new value is appended. [#487](https://github.com/pdm-project/pdm/issues/487)
- Allow missing email attribute for authors and maintainers. [#492](https://github.com/pdm-project/pdm/issues/492)
- Fix a bug that editable install shouldn't require pyproject.toml to be valid. [#497](https://github.com/pdm-project/pdm/issues/497)
- Fix a bug on MacOS that purelib and platlib paths of isolated build envs cannot be substituted correctly if the Python is a framework build. [#502](https://github.com/pdm-project/pdm/issues/502)
- Fix the version sort of candidates. [#506](https://github.com/pdm-project/pdm/issues/506)


Release v1.6.2 (2021-05-31)
---------------------------

No significant changes.


Release v1.6.1 (2021-05-31)
---------------------------

No significant changes.


Release v1.6.0 (2021-05-31)
---------------------------

### Features & Improvements

- Use a new approach to determine the packages to be installed. This requires a quick resolution step before installation. [#456](https://github.com/pdm-project/pdm/issues/456)
- `pdm export` no longer produces requirements file applicable for all platforms due to the new approach. [#456](https://github.com/pdm-project/pdm/issues/456)
- Add structural typing for requirements module. Refactor the requirements module for that purpose. [#433](https://github.com/pdm-project/pdm/issues/433)
- Introduce `--no-editable` option to install non-editable versions of all packages. [#443](https://github.com/pdm-project/pdm/issues/443)
- Introduce `--no-self` option to prevent the project itself from being installed. [#444](https://github.com/pdm-project/pdm/issues/444)
- Add a default `.gitignore` file in the `__pypackages__` directory. [#446](https://github.com/pdm-project/pdm/issues/446)
- Check if the lock file version is compatible with PDM program before installation. [#463](https://github.com/pdm-project/pdm/issues/463)
- Expose the project root path via `PDM_PROJECT_ROOT` env var. Change to the project root when executing scripts. [#470](https://github.com/pdm-project/pdm/issues/470)
- Fix a bug that installation resolution doesn't respect the requirement markers from pyproject config. [#480](https://github.com/pdm-project/pdm/issues/480)

### Bug Fixes

- Changing to multiline breaks the parsing of TOML document. [#462](https://github.com/pdm-project/pdm/issues/462)
- Fix a bug that transient dependencies of conditional requirements can't be resolved. [#472](https://github.com/pdm-project/pdm/issues/472)
- Fix a bug that invalid wheels are rejected while they are acceptable for resolution. [#473](https://github.com/pdm-project/pdm/issues/473)
- Fix a bug that build environment is not fully isolated with the hosted environment. [#477](https://github.com/pdm-project/pdm/issues/477)
- Ensure the lock file is compatible before looking for the locked candidates. [#484](https://github.com/pdm-project/pdm/issues/484)

### Improved Documentation

- Fix 404 links in documentation. [#472](https://github.com/pdm-project/pdm/issues/472)

### Dependencies

- Migrate from `tomlkit` to `atoml` as the style-preserving TOML parser and writer. [#465](https://github.com/pdm-project/pdm/issues/465)

### Removals and Deprecations

- Remove the warning of `--dev` flag for older versions of PDM. [#444](https://github.com/pdm-project/pdm/issues/444)

### Miscellany

- Add Python 3.10 beta CI job. [#457](https://github.com/pdm-project/pdm/issues/457)


Release v1.5.3 (2021-05-10)
---------------------------

### Features & Improvements

- Support passing options to the build backends via `--config-setting`. [#452](https://github.com/pdm-project/pdm/issues/452)

### Bug Fixes

- Seek for other sitecustomize.py to import. [#422](https://github.com/pdm-project/pdm/issues/422)
- Fix an unescaped single quote in fish completion script. [#423](https://github.com/pdm-project/pdm/issues/423)
- The hashes of a remote file candidate should be calculated from the link itself. [#450](https://github.com/pdm-project/pdm/issues/450)

### Dependencies

- Remove `keyring` as a dependency and guide users to install it when it is not available. [#442](https://github.com/pdm-project/pdm/issues/442)
- Specify the minimum version of `distlib`. [#447](https://github.com/pdm-project/pdm/issues/447)

### Miscellany

- Add log output about found candidates and their origin. [#421](https://github.com/pdm-project/pdm/issues/421)
- Add [mypy](https://github.com/python/mypy) pre-commit hook [#427](https://github.com/pdm-project/pdm/issues/427)
- Improve type safety of `pdm.cli.actions` [#428](https://github.com/pdm-project/pdm/issues/428)
- Fix wrong mypy configuration. [#451](https://github.com/pdm-project/pdm/issues/451)


Release v1.5.2 (2021-04-27)
---------------------------

### Features & Improvements

- Allow `pdm use` with no argument given, which will list all available pythons for pick. [#409](https://github.com/pdm-project/pdm/issues/409)

### Bug Fixes

- Inform user to enable PEP 582 for development script to work. [#404](https://github.com/pdm-project/pdm/issues/404)
- Check the existence of pyenv shim Python interpreter before using it. [#406](https://github.com/pdm-project/pdm/issues/406)
- Fix a bug that executing `setup.py` failed for NameError. [#407](https://github.com/pdm-project/pdm/issues/407)
- Check before setting the PYTHONPATH environment variable for PEP582 [#410](https://github.com/pdm-project/pdm/issues/410)
- Fix development setup error. [#415](https://github.com/pdm-project/pdm/issues/415)

### Dependencies

- Update pip to 21.1 and fix compatibility issues. [#412](https://github.com/pdm-project/pdm/issues/412)


Release v1.5.1 (2021-04-22)
---------------------------

### Bug Fixes

- Make func translate_sections pure to avoid exporting requirements in random order. [#401](https://github.com/pdm-project/pdm/issues/401)
- Expand the variables in install requirements' attributes for build. [#402](https://github.com/pdm-project/pdm/issues/402)


Release v1.5.0 (2021-04-20)
---------------------------

### Features & Improvements

- Include dev dependencies by default for `install` and `sync` commands. Add a new option `--prod/--production` to exclude them. Improve the dependency selection logic to be more convenient to use — the more common the usage is, the shorter the command is. [#391](https://github.com/pdm-project/pdm/issues/391)

### Bug Fixes

- Enquote executable path to ensure generating valid scripts. [#387](https://github.com/pdm-project/pdm/issues/387)
- Consider hashes when fetching artifact link for build. [#389](https://github.com/pdm-project/pdm/issues/389)
- Considier the sources settings when building. [#399](https://github.com/pdm-project/pdm/issues/399)

### Improved Documentation

- New pdm setting `source-includes` to mark files to be included only in sdist builds. [#390](https://github.com/pdm-project/pdm/issues/390)

### Dependencies

- Update `pdm-pep517` to `0.7.0`; update `resolvelib` to` 0.7.0`. [#390](https://github.com/pdm-project/pdm/issues/390)

### Removals and Deprecations

- Deprecate the usage of `-d/--dev` option in `install` and `sync` commands. [#391](https://github.com/pdm-project/pdm/issues/391)


Release v1.5.0b1 (2021-04-12)
-----------------------------

### Features & Improvements

- Improve the env builder to run in isolated mode. [#384](https://github.com/pdm-project/pdm/issues/384)

### Bug Fixes

- Remove the incompatible code from the files that will be run in-process. [#375](https://github.com/pdm-project/pdm/issues/375)
- Get the correct Python ABI tag of selected interpreter [#378](https://github.com/pdm-project/pdm/issues/378)
- Error out when doing `pdm run` on a directory not initialized yet.
- Give warning message when the project automatically fallbacks to the global project.

### Dependencies

- Upgrade `resolvelib` to `0.6.0`. [#381](https://github.com/pdm-project/pdm/issues/381)

### Miscellany

- refactor `pdm.models.readers` to improve typing support [#321](https://github.com/pdm-project/pdm/issues/321)
- Add a basic integration test for cross-python check. [#377](https://github.com/pdm-project/pdm/issues/377)
- Refactor the `project.python_executable` to `project.python` that contains all info of the interpreter. [#382](https://github.com/pdm-project/pdm/issues/382)
- Continue refactoring Python info to extract to its own module. [#383](https://github.com/pdm-project/pdm/issues/383)
- Refactor the creation of project.


Release v1.5.0b0 (2021-04-03)
-----------------------------

### Features & Improvements

- Add hand-written zsh completion script. [#188](https://github.com/pdm-project/pdm/issues/188)
- Add a special value `:all` given to `-s/--section` to refer to all sections under the same species.
  Adjust `add`, `sync`, `install`, `remove` and `update` to support the new `dev-dependencies` groups. Old behavior will be kept the same. [#351](https://github.com/pdm-project/pdm/issues/351)
- `dev-dependencies` is now a table of dependencies groups, where key is the group name and value is an array of dependencies. These dependencies won't appear in the distribution's metadata. `dev-depedencies` of the old format will turn into `dev` group under `dev-dependencies`. [#351](https://github.com/pdm-project/pdm/issues/351)
- Move `dev-dependencies`, `includes`, `excludes` and `package-dir` out from `[project]` table to `[tool.pdm]` table. The migration will be done automatically if old format is detected. [#351](https://github.com/pdm-project/pdm/issues/351)
- Throws an error with meaningful message when no candidate is found for one requirement. [#357](https://github.com/pdm-project/pdm/issues/357)
- Support `--dry-run` option for `update` command to display packages that need update, install or removal. Add `--top` option to limit to top level packages only. [#358](https://github.com/pdm-project/pdm/issues/358)
- Full-featured completion scripts for Zsh and Powershell - section selection, package name autocompletion and so on. Windows is a first-class citizen! [#367](https://github.com/pdm-project/pdm/issues/367)
- Support non-interactive `init` command via `-n/--non-interactive` option. No question will be asked in this mode. [#368](https://github.com/pdm-project/pdm/issues/368)
- Show project packages path(PEP 582) in the output of `pdm info`, also add an option `--packages` to show that value only. [#372](https://github.com/pdm-project/pdm/issues/372)

### Bug Fixes

- Fix a bug that pure python libraries are not loaded to construct the WorkingSet. [#346](https://github.com/pdm-project/pdm/issues/346)
- Don't write `<script>-X.Y` variant to the bin folder. [#365](https://github.com/pdm-project/pdm/issues/365)
- Python is now run in isolated mode via subprocess to avoid accidentally importing user packages. [#369](https://github.com/pdm-project/pdm/issues/369)
- Don't overwrite existing dependencies when importing from requirements.txt. [#370](https://github.com/pdm-project/pdm/issues/370)

### Improved Documentation

- Add instructions of how to integrate PDM with Emacs, contributed by @linw1995. [#372](https://github.com/pdm-project/pdm/issues/372)

### Removals and Deprecations

- Remove the support of project path following `-g/--global` that was deprecated in `1.4.0`. One should use `-g -p <project_path>` for that purpose. [#361](https://github.com/pdm-project/pdm/issues/361)

### Miscellany

- Add test coverage to PDM. [#109](https://github.com/pdm-project/pdm/issues/109)
- Add type annotations into untyped functions to start using mypy. [#354](https://github.com/pdm-project/pdm/issues/354)
- Refactor the format converter code to be more explicit. [#360](https://github.com/pdm-project/pdm/issues/360)


Release v1.4.5 (2021-03-30)
---------------------------

### Features & Improvements

- Skip the first prompt of `pdm init` [#352](https://github.com/pdm-project/pdm/issues/352)

### Bug Fixes

- Fix a test failure when using homebrew installed python. [#348](https://github.com/pdm-project/pdm/issues/348)
- Get revision from the VCS URL if source code isn't downloaded to local. [#349](https://github.com/pdm-project/pdm/issues/349)

### Dependencies

- Update dependency `pdm-pep517` to `0.6.1`. [#353](https://github.com/pdm-project/pdm/issues/353)


Release v1.4.4 (2021-03-27)
---------------------------

### Features & Improvements

- Emit warning if version or description can't be retrieved when importing from flit metadata. [#342](https://github.com/pdm-project/pdm/issues/342)
- Add `type` argument to `pdm cache clear` and improve its UI. [#343](https://github.com/pdm-project/pdm/issues/343)
- Always re-install the editable packages when syncing the working set. This can help tracking the latest change of `entry-points`. [#344](https://github.com/pdm-project/pdm/issues/344)

### Bug Fixes

- Make installer quit early if a wheel isn't able to build. [#338](https://github.com/pdm-project/pdm/issues/338)

### Miscellany

- ignore type checking in `models.project_info.ProjectInfo`, which indexes `distlib.metadata._data` [#335](https://github.com/pdm-project/pdm/issues/335)


Release v1.4.3 (2021-03-24)
---------------------------

### Features & Improvements

- Change the group name of entry points from `pdm.plugins` to `pdm`.
  Export some useful objects and models for shorter import path. [#318](https://github.com/pdm-project/pdm/issues/318)
- Field `cmd` in `tools.pdm.scripts` configuration items now allows specifying an argument array instead of a string.
- Refactor: Remove the reference of `stream` singleton, improve the UI related code. [#320](https://github.com/pdm-project/pdm/issues/320)
- Support dependencies managed by poetry and flit being installed as editable packages. [#324](https://github.com/pdm-project/pdm/issues/324)
- Refactor: Extract the logic of finding interpreters to method for the sake of subclass overriding. [#326](https://github.com/pdm-project/pdm/issues/326)
- Complete the `cache` command, add `list`, `remove` and `info` subcommands. [#329](https://github.com/pdm-project/pdm/issues/329)
- Refactor: Unify the code about selecting interpreter to reduce the duplication. [#331](https://github.com/pdm-project/pdm/issues/331)
- Retrieve the version and description of a flit project by parsing the AST of the main file. [#333](https://github.com/pdm-project/pdm/issues/333)

### Bug Fixes

- Fix a parsing error when non-ascii characters exist in `pyproject.toml`. [#308](https://github.com/pdm-project/pdm/issues/308)
- Fix a bug that non-editable VCS candidates can't satisfy their requirements once locked in the lock file. [#314](https://github.com/pdm-project/pdm/issues/314)
- Fix a bug of import-on-init that fails when requirements.txt is detected. [#328](https://github.com/pdm-project/pdm/issues/328)

### Miscellany

- refactor `pdm.iostream` to improve 'typing' support [#301](https://github.com/pdm-project/pdm/issues/301)
- fix some typos [#323](https://github.com/pdm-project/pdm/issues/323)


Release v1.4.2 (2021-03-18)
---------------------------

### Features & Improvements

- Refactor the code, extract the version related logic from `specifiers.py` to a separated module. [#303](https://github.com/pdm-project/pdm/issues/303)

### Bug Fixes

- Fix a bug that get_dependencies() returns error when the `setup.py` has no `intall_requires` key. [#299](https://github.com/pdm-project/pdm/issues/299)
- Pin the VCS revision for non-editable VCS candidates in the lock file. [#305](https://github.com/pdm-project/pdm/issues/305)
- Fix a bug that editable build hits the cached wheel unexpectedly. [#307](https://github.com/pdm-project/pdm/issues/307)

### Miscellany

- replace 'typing comments' with type annotations throughout [#298](https://github.com/pdm-project/pdm/issues/298)


Release v1.4.1 (2021-03-12)
---------------------------

### Features & Improvements

- Support importing dependencies from requirements.txt to dev-dependencies or sections. [#291](https://github.com/pdm-project/pdm/issues/291)

### Bug Fixes

- Fallback to static parsing when building was failed to find the dependencies of a candidate. [#293](https://github.com/pdm-project/pdm/issues/293)
- Fix a bug that `pdm init` fails when `pyproject.toml` exists but has no `[project]` section. [#295](https://github.com/pdm-project/pdm/issues/295)

### Improved Documentation

- Document about how to use PDM with Nox. [#281](https://github.com/pdm-project/pdm/issues/281)


Release v1.4.0 (2021-03-05)
---------------------------

### Features & Improvements

- When `-I/--ignore-python` passed or `PDM_IGNORE_SAVED_PYTHON=1`, ignore the interpreter set in `.pdm.toml` and don't save to it afterwards. [#283](https://github.com/pdm-project/pdm/issues/283)
- A new option `-p/--project` is introduced to specify another path for the project base. It can also be combined with `-g/--global` option.
  The latter is changed to a flag only option that does not accept values. [#286](https://github.com/pdm-project/pdm/issues/286)
- Support `-f setuppy` for `pdm export` to export the metadata as setup.py [#289](https://github.com/pdm-project/pdm/issues/289)

### Bug Fixes

- Fix a bug that editable local package requirements cannot be parsed rightly. [#285](https://github.com/pdm-project/pdm/issues/285)
- Change the priority of metadata files to parse so that PEP 621 metadata will be parsed first. [#288](https://github.com/pdm-project/pdm/issues/288)

### Improved Documentation

- Add examples of how to integrate with CI pipelines (and tox). [#281](https://github.com/pdm-project/pdm/issues/281)


Release v1.3.4 (2021-03-01)
---------------------------

### Improved Documentation

- added documentation on a [task provider for vscode](https://marketplace.visualstudio.com/items?itemName=knowsuchagency.pdm-task-provider) [#280](https://github.com/pdm-project/pdm/issues/280)

### Bug Fixes

- Ignore the python requires constraints when fetching the link from the PyPI index.

Release v1.3.3 (2021-02-26)
---------------------------

### Bug Fixes

- Fix the requirement string of a VCS requirement to comply with PEP 508. [#275](https://github.com/pdm-project/pdm/issues/275)
- Fix a bug that editable packages with `src` directory can't be uninstalled correctly. [#277](https://github.com/pdm-project/pdm/issues/277)
- Fix a bug that editable package doesn't override the non-editable version in the working set. [#278](https://github.com/pdm-project/pdm/issues/278)


Release v1.3.2 (2021-02-25)
---------------------------

### Features & Improvements

- Abort and tell user the selected section following `pdm sync` or `pdm install` is not present in the error message. [#274](https://github.com/pdm-project/pdm/issues/274)

### Bug Fixes

- Fix a bug that candidates' sections cannot be retrieved rightly when circular dependencies exist. [#270](https://github.com/pdm-project/pdm/issues/270)
- Don't pass the help argument into the run script method. [#272](https://github.com/pdm-project/pdm/issues/272)


Release v1.3.1 (2021-02-19)
---------------------------

### Bug Fixes

- Use the absolute path when importing from a Poetry pyproject.toml. [#262](https://github.com/pdm-project/pdm/issues/262)
- Fix a bug that old toml table head is kept when converting to PEP 621 metadata format. [#263](https://github.com/pdm-project/pdm/issues/263)
- Postpone the evaluation of `requires-python` attribute when fetching the candidates of a package. [#264](https://github.com/pdm-project/pdm/issues/264)


Release v1.3.0 (2021-02-09)
---------------------------

### Features & Improvements

- Increase the default value of the max rounds of resolution to 1000, make it configurable. [#238](https://github.com/pdm-project/pdm/issues/238)
- Rewrite the project's `egg-info` directory when dependencies change. So that `pdm list --graph` won't show invalid entries. [#240](https://github.com/pdm-project/pdm/issues/240)
- When importing requirements from a `requirements.txt` file, build the package to find the name if not given in the URL. [#245](https://github.com/pdm-project/pdm/issues/245)
- When initializing the project, prompt user for whether the project is a library, and give empty `name` and `version` if not. [#253](https://github.com/pdm-project/pdm/issues/253)

### Bug Fixes

- Fix the version validator of wheel metadata to align with the implementation of `packaging`. [#130](https://github.com/pdm-project/pdm/issues/130)
- Preserve the `sections` value of a pinned candidate to be reused. [#234](https://github.com/pdm-project/pdm/issues/234)
- Strip spaces in user input when prompting for the python version to use. [#252](https://github.com/pdm-project/pdm/issues/252)
- Fix the version parsing of Python requires to allow `>`, `>=`, `<`, `<=` to combine with star versions. [#254](https://github.com/pdm-project/pdm/issues/254)


Release v1.2.0 (2021-01-26)
---------------------------

### Features & Improvements

- Change the behavior of `--save-compatible` slightly. Now the version specifier saved is using the REAL compatible operator `~=` as described in PEP 440. Before: `requests<3.0.0,>=2.19.1`, After: `requests~=2.19`. The new specifier accepts `requests==2.19.0` as compatible version. [#225](https://github.com/pdm-project/pdm/issues/225)
- Environment variable `${PROJECT_ROOT}` in the dependency specification can be expanded to refer to the project root in pyproject.toml.
  The environment variables will be kept as they are in the lock file. [#226](https://github.com/pdm-project/pdm/issues/226)
- Change the dependencies of a package in the lock file to a list of PEP 508 strings [#236](https://github.com/pdm-project/pdm/issues/236)

### Bug Fixes

- Ignore user's site and `PYTHONPATH`(with `python -I` mode) when executing pip commands. [#231](https://github.com/pdm-project/pdm/issues/231)

### Improved Documentation

- Document about how to activate and use a plugin. [#227](https://github.com/pdm-project/pdm/issues/227)

### Dependencies

- Test project on `pip 21.0`. [#235](https://github.com/pdm-project/pdm/issues/235)


Release v1.1.0 (2021-01-18)
---------------------------

### Features & Improvements

- Allow users to hide secrets from the `pyproject.toml`.
  - Dynamically expand env variables in the URLs in dependencies and indexes.
  - Ask whether to store the credentials provided by the user.
  - A user-friendly error will show when credentials are not provided nor correct. [#198](https://github.com/pdm-project/pdm/issues/198)
- Use a different package dir for 32-bit installation(Windows). [#212](https://github.com/pdm-project/pdm/issues/212)
- Auto disable PEP 582 when a venv-like python is given as the interpreter path. [#219](https://github.com/pdm-project/pdm/issues/219)
- Support specifying Python interpreter by `pdm use <path-to-python-root>`. [#221](https://github.com/pdm-project/pdm/issues/221)

### Bug Fixes

- Fix a bug of `PYTHONPATH` manipulation under Windows platform. [#215](https://github.com/pdm-project/pdm/issues/215)

### Removals and Deprecations

- Remove support of the old PEP 517 backend API path. [#217](https://github.com/pdm-project/pdm/issues/217)


Release v1.0.0 (2021-01-05)
---------------------------

### Bug Fixes

- Correctly build wheels for dependencies with build-requirements but without a specified build-backend [#213](https://github.com/pdm-project/pdm/issues/213)


Release v1.0.0b2 (2020-12-29)
-----------------------------

### Features & Improvements

- Fallback to pypi.org when `/search` endpoint is not available on given index. [#211](https://github.com/pdm-project/pdm/issues/211)

### Bug Fixes

- Fix a bug that PDM fails to parse python version specifiers with more than 3 parts. [#210](https://github.com/pdm-project/pdm/issues/210)


Release v1.0.0b0 (2020-12-24)
-----------------------------

### Features & Improvements

- Fully support of PEP 621 specification.
  - Old format is deprecated at the same time.
  - PDM will migrate the project file for you when old format is detected.
  - Other metadata formats(`Poetry`, `Pipfile`, `flit`) can also be imported as PEP 621 metadata. [#175](https://github.com/pdm-project/pdm/issues/175)
- Re-implement the `pdm search` to query the `/search` HTTP endpoint. [#195](https://github.com/pdm-project/pdm/issues/195)
- Reuse the cached built wheels to accelerate the installation. [#200](https://github.com/pdm-project/pdm/issues/200)
- Make update strategy and save strategy configurable in pdm config. [#202](https://github.com/pdm-project/pdm/issues/202)
- Improve the error message to give more insight on what to do when resolution fails. [#207](https://github.com/pdm-project/pdm/issues/207)
- Set `classifiers` dynamic in `pyproject.toml` template for autogeneration. [#209](https://github.com/pdm-project/pdm/issues/209)

### Bug Fixes

- Fix a bug that distributions are not removed clearly in parallel mode. [#204](https://github.com/pdm-project/pdm/issues/204)
- Fix a bug that python specifier `is_subset()` returns incorrect result. [#206](https://github.com/pdm-project/pdm/issues/206)


Release v0.12.3 (2020-12-21)
----------------------------

### Dependencies

- Pin `pdm-pep517` to `<0.3.0`, this is the last version to support legacy project metadata format.

Release v0.12.2 (2020-12-17)
----------------------------

### Features & Improvements

- Update the lock file schema, move the file hashes to `[metadata.files]` table. [#196](https://github.com/pdm-project/pdm/issues/196)
- Retry failed jobs when syncing packages. [#197](https://github.com/pdm-project/pdm/issues/197)

### Removals and Deprecations

- Drop `pip-shims` package as a dependency. [#132](https://github.com/pdm-project/pdm/issues/132)

### Miscellany

- Fix the cache path for CI. [#199](https://github.com/pdm-project/pdm/issues/199)


Release v0.12.1 (2020-12-14)
----------------------------

### Features & Improvements

- Provide an option to export requirements from pyproject.toml [#190](https://github.com/pdm-project/pdm/issues/190)
- For Windows users, `pdm --pep582` can enable PEP 582 globally by manipulating the WinReg. [#191](https://github.com/pdm-project/pdm/issues/191)

### Bug Fixes

- Inject `__pypackages__` into `PATH` env var during `pdm run`. [#193](https://github.com/pdm-project/pdm/issues/193)


Release v0.12.0 (2020-12-08)
----------------------------

### Features & Improvements

- Improve the user experience of `pdm run`:
  - Add a special key in tool.pdm.scripts that holds configurations shared by all scripts.
  - Support loading env var from a dot-env file.
  - Add a flag `-s/--site-packages` to include system site-packages when running. [#178](https://github.com/pdm-project/pdm/issues/178)
- Now PEP 582 can be enabled in the Python interpreter directly! [#181](https://github.com/pdm-project/pdm/issues/181)

### Bug Fixes

- Ensure `setuptools` is installed before invoking editable install script. [#174](https://github.com/pdm-project/pdm/issues/174)
- Require `wheel` not `wheels` for global projects [#182](https://github.com/pdm-project/pdm/issues/182)
- Write a `sitecustomize.py` instead of a `.pth` file to enable PEP 582. Thanks @Aloxaf.
  Update `get_package_finder()` to be compatible with `pip 20.3`. [#185](https://github.com/pdm-project/pdm/issues/185)
- Fix the help messages of commands "cache" and "remove" [#187](https://github.com/pdm-project/pdm/issues/187)


Release v0.11.0 (2020-11-20)
----------------------------

### Features & Improvements

- Support custom script shortcuts in `pyproject.toml`.
  - Support custom script shortcuts defined in `[tool.pdm.scripts]` section.
  - Add `pdm run --list/-l` to show the list of script shortcuts. [#168](https://github.com/pdm-project/pdm/issues/168)
- Patch the halo library to support parallel spinners.
- Change the looking of `pdm install`. [#169](https://github.com/pdm-project/pdm/issues/169)

### Bug Fixes

- Fix a bug that package's marker fails to propagate to its grandchildren if they have already been resolved. [#170](https://github.com/pdm-project/pdm/issues/170)
- Fix a bug that bare version specifiers in Poetry project can't be converted correctly. [#172](https://github.com/pdm-project/pdm/issues/172)
- Fix the build error that destination directory is not created automatically. [#173](https://github.com/pdm-project/pdm/issues/173)


Release v0.10.2 (2020-11-05)
----------------------------

### Bug Fixes

- Building editable distribution does not install `build-system.requires` anymore. [#167](https://github.com/pdm-project/pdm/issues/167)


Release v0.10.1 (2020-11-04)
----------------------------

### Bug Fixes

- Switch the PEP 517 build frontend from `build` to a home-grown version. [#162](https://github.com/pdm-project/pdm/issues/162)
- Synchronize the output of `LogWrapper`. [#164](https://github.com/pdm-project/pdm/issues/164)
- Fix a bug that `is_subset` and `is_superset` may return wrong result when wildcard excludes overlaps with the upper bound. [#165](https://github.com/pdm-project/pdm/issues/165)


Release v0.10.0 (2020-10-20)
----------------------------

### Features & Improvements

- Change to Git style config command. [#157](https://github.com/pdm-project/pdm/issues/157)
- Add a command to generate scripts for autocompletion, which is backed by `pycomplete`. [#159](https://github.com/pdm-project/pdm/issues/159)

### Bug Fixes

- Fix a bug that `sitecustomize.py` incorrectly gets injected into the editable console scripts. [#158](https://github.com/pdm-project/pdm/issues/158)


Release v0.9.2 (2020-10-13)
---------------------------

### Features & Improvements

- Cache the built wheels to accelerate resolution and installation process. [#153](https://github.com/pdm-project/pdm/issues/153)

### Bug Fixes

- Fix a bug that no wheel is matched when finding candidates to install. [#155](https://github.com/pdm-project/pdm/issues/155)
- Fix a bug that installation in parallel will cause encoding initialization error on Ubuntu. [#156](https://github.com/pdm-project/pdm/issues/156)


Release v0.9.1 (2020-10-13)
---------------------------

### Features & Improvements

- Display plain text instead of spinner bar under verbose mode. [#150](https://github.com/pdm-project/pdm/issues/150)

### Bug Fixes

- Fix a bug that the result of `find_matched()` is exhausted when accessed twice. [#149](https://github.com/pdm-project/pdm/issues/149)


Release v0.9.0 (2020-10-08)
---------------------------

### Features & Improvements

- Allow users to combine several dependency sections to form an extra require. [#131](https://github.com/pdm-project/pdm/issues/131)
- Split the PEP 517 backend to its own(battery included) package. [#134](https://github.com/pdm-project/pdm/issues/134)
- Add a new option to list command to show reverse dependency graph. [#137](https://github.com/pdm-project/pdm/issues/137)

### Bug Fixes

- Fix a bug that spaces in path causes requirement parsing error. [#138](https://github.com/pdm-project/pdm/issues/138)
- Fix a bug that requirement's python constraint is not respected when resolving. [#141](https://github.com/pdm-project/pdm/issues/141)

### Dependencies

- Update `pdm-pep517` to `0.2.0` that supports reading version from SCM. [#146](https://github.com/pdm-project/pdm/issues/146)

### Miscellany

- Add Python 3.9 to the CI version matrix to verify. [#144](https://github.com/pdm-project/pdm/issues/144)


Release v0.8.7 (2020-09-04)
---------------------------

### Bug Fixes

- Fix a compatibility issue with `wheel==0.35`. [#135](https://github.com/pdm-project/pdm/issues/135)


Release v0.8.6 (2020-07-09)
---------------------------

### Bug Fixes

- Fix a bug that extra sources are not respected when fetching distributions. [#127](https://github.com/pdm-project/pdm/issues/127)


Release v0.8.5 (2020-06-24)
---------------------------

### Bug Fixes

- Fix a bug that `pdm export` fails when the project doesn't have `name` property. [#126](https://github.com/pdm-project/pdm/issues/126)

### Dependencies

- Upgrade dependency `pip` to `20.1`. [#125](https://github.com/pdm-project/pdm/issues/125)


Release v0.8.4 (2020-05-21)
---------------------------

### Features & Improvements

- Add a new command `export` to export to alternative formats. [#117](https://github.com/pdm-project/pdm/issues/117)

### Miscellany

- Add Dockerfile and pushed to Docker Hub. [#122](https://github.com/pdm-project/pdm/issues/122)


Release v0.8.3 (2020-05-15)
---------------------------

### Bug Fixes

- Fix the version constraint parsing of wheel metadata. [#120](https://github.com/pdm-project/pdm/issues/120)


Release v0.8.2 (2020-05-03)
---------------------------

### Bug Fixes

- Update resolvers to `resolvelib` 0.4.0. [#118](https://github.com/pdm-project/pdm/issues/118)


Release v0.8.1 (2020-04-22)
---------------------------

### Dependencies

- Switch to upstream `resolvelib 0.3.0`. [#116](https://github.com/pdm-project/pdm/issues/116)


Release v0.8.0 (2020-04-20)
---------------------------

### Features & Improvements

- Add a new command to search for packages [#111](https://github.com/pdm-project/pdm/issues/111)
- Add `show` command to show package metadata. [#114](https://github.com/pdm-project/pdm/issues/114)

### Bug Fixes

- Fix a bug that environment markers cannot be evaluated correctly if extras are connected with "or". [#107](https://github.com/pdm-project/pdm/issues/107)
- Don't consult PyPI JSON API by default for package metadata. [#112](https://github.com/pdm-project/pdm/issues/112)
- Eliminate backslashes in markers for TOML documents. [#115](https://github.com/pdm-project/pdm/issues/115)


Release v0.7.1 (2020-04-13)
---------------------------

### Bug Fixes

- Editable packages requires `setuptools` to be installed in the isolated environment.

Release v0.7.0 (2020-04-12)
---------------------------

### Features & Improvements

- Disable loading of site-packages under PEP 582 mode. [#100](https://github.com/pdm-project/pdm/issues/100)

### Bug Fixes

- Fix a bug that TOML parsing error is not correctly captured. [#101](https://github.com/pdm-project/pdm/issues/101)
- Fix a bug of building wheels with C extensions that the platform in file name is incorrect. [#99](https://github.com/pdm-project/pdm/issues/99)


Release v0.6.5 (2020-04-07)
---------------------------

### Bug Fixes

- Unix style executable script suffix is missing.


Release v0.6.4 (2020-04-07)
---------------------------

### Features & Improvements

- Update shebang lines in the executable scripts when doing `pdm use`. [#96](https://github.com/pdm-project/pdm/issues/96)
- Auto-detect commonly used venv directories. [#97](https://github.com/pdm-project/pdm/issues/97)


Release v0.6.3 (2020-03-30)
---------------------------

### Bug Fixes

- Fix a bug of moving files across different file system. [#95](https://github.com/pdm-project/pdm/issues/95)


Release v0.6.2 (2020-03-29)
---------------------------

### Bug Fixes

- Validate user input for `python_requires` when initializing project. [#89](https://github.com/pdm-project/pdm/issues/89)
- Ensure `wheel` package is available before building packages. [#90](https://github.com/pdm-project/pdm/issues/90)
- Fix an issue of remove command that will unexpectedly uninstall packages in default section. [#92](https://github.com/pdm-project/pdm/issues/92)

### Dependencies

- Update dependencies `pythonfinder`, `python-cfonts`, `pip-shims` and many others.
  Drop dependency `vistir`. [#89](https://github.com/pdm-project/pdm/issues/89)


Release v0.6.1 (2020-03-25)
---------------------------

### Features & Improvements

- Redirect output messages to log file for installation and locking. [#84](https://github.com/pdm-project/pdm/issues/84)

### Bug Fixes

- Fix a bug that parallel installation fails due to setuptools reinstalling. [#83](https://github.com/pdm-project/pdm/issues/83)


Release v0.6.0 (2020-03-20)
---------------------------

### Features & Improvements

- Support specifying build script for C extensions. [#23](https://github.com/pdm-project/pdm/issues/23)
- Add test cases for `pdm build`. [#81](https://github.com/pdm-project/pdm/issues/81)
- Make it configurable whether to consult PyPI JSON API since it may be not trustable.
- Support parallel installation.
- Add new command `pmd import` to import project metadata from `Pipfile`, `poetry`, `flit`, `requirements.txt`.
  [#79](https://github.com/pdm-project/pdm/issues/79)
- `pdm init` and `pdm install` will auto-detect possible files that can be imported.

### Bug Fixes

- Fix wheel builds when `package_dir` is mapped. [#81](https://github.com/pdm-project/pdm/issues/81)
- `pdm init` will use the current directory rather than finding the parents when
global project is not activated.


Release v0.5.0 (2020-03-14)
---------------------------

### Features & Improvements

- Introduce a super easy-to-extend plug-in system to PDM. [#75](https://github.com/pdm-project/pdm/issues/75)

### Improved Documentation

- Documentation on how to write a plugin. [#75](https://github.com/pdm-project/pdm/issues/75)

### Bug Fixes

- Fix a typo in metadata parsing from `plugins` to `entry_points`


Release v0.4.2 (2020-03-13)
---------------------------

### Features & Improvements

- Refactor the CLI part, switch from `click` to `argparse`, for better extensibility. [#73](https://github.com/pdm-project/pdm/issues/73)
- Allow users to configure to install packages into venv when it is activated. [#74](https://github.com/pdm-project/pdm/issues/74)


Release v0.4.1 (2020-03-11)
---------------------------

### Features & Improvements

- Add a minimal dependency set for global project. [#72](https://github.com/pdm-project/pdm/issues/72)


Release v0.4.0 (2020-03-10)
---------------------------

### Features & Improvements

- Global project support
  - Add a new option `-g/--global` to manage global project. The default location is at `~/.pdm/global-project`.
  - Use the virtualenv interpreter when detected inside an activated venv.
  - Add a new option `-p/--project` to select project root other than the default one. [#30](https://github.com/pdm-project/pdm/issues/30)
- Add a new command `pdm config del` to delete an existing config item. [#71](https://github.com/pdm-project/pdm/issues/71)

### Bug Fixes

- Fix a URL parsing issue that username will be dropped in the SSH URL. [#68](https://github.com/pdm-project/pdm/issues/68)

### Improved Documentation

- Add docs for global project and selecting project path. [#30](https://github.com/pdm-project/pdm/issues/30)


Release v0.3.2 (2020-03-08)
---------------------------

### Features & Improvements

- Display all available Python interpreters if users don't give one in `pdm init`. [#67](https://github.com/pdm-project/pdm/issues/67)

### Bug Fixes

- Regard `4.0` as infinite upper bound when checking subsetting. [#66](https://github.com/pdm-project/pdm/issues/66)


Release v0.3.1 (2020-03-07)
---------------------------

### Bug Fixes

- Fix a bug that `ImpossiblePySpec`'s hash clashes with normal one.


Release v0.3.0 (2020-02-28)
---------------------------

### Features & Improvements

- Add a new command `pdm config` to inspect configurations. [#26](https://github.com/pdm-project/pdm/issues/26)
- Add a new command `pdm cache clear` to clean caches. [#63](https://github.com/pdm-project/pdm/issues/63)

### Bug Fixes

- Correctly show dependency graph when circular dependencies exist. [#62](https://github.com/pdm-project/pdm/issues/62)

### Improved Documentation

- Write the initial documentation for PDM. [#14](https://github.com/pdm-project/pdm/issues/14)


Release v0.2.6 (2020-02-25)
---------------------------

### Features & Improvements

- Improve the user interface of selecting Python interpreter. [#54](https://github.com/pdm-project/pdm/issues/54)

### Bug Fixes

- Fix the wheel installer to correctly unparse the flags of console scripts. [#56](https://github.com/pdm-project/pdm/issues/56)
- Fix a bug that OS-dependent hashes are not saved. [#57](https://github.com/pdm-project/pdm/issues/57)


Release v0.2.5 (2020-02-22)
---------------------------

### Features & Improvements

- Allow specifying Python interpreter via `--python` option in `pdm init`. [#49](https://github.com/pdm-project/pdm/issues/49)
- Set `python_requires` when initializing and defaults to `>={current_version}`. [#50](https://github.com/pdm-project/pdm/issues/50)

### Bug Fixes

- Always consider wheels before tarballs; correctly merge markers from different parents. [#47](https://github.com/pdm-project/pdm/issues/47)
- Filter out incompatible wheels when installing. [#48](https://github.com/pdm-project/pdm/issues/48)


Release v0.2.4 (2020-02-21)
---------------------------

### Bug Fixes

- Use the project local interpreter to build wheels. [#43](https://github.com/pdm-project/pdm/issues/43)
- Correctly merge Python specifiers when possible. [#4](https://github.com/pdm-project/pdm/issues/4)


Release v0.2.3 (2020-02-21)
---------------------------

### Bug Fixes

- Fix a bug that editable build generates a malformed `setup.py`.


Release v0.2.2 (2020-02-20)
---------------------------

### Features & Improvements

- Add a fancy greeting banner when user types `pdm --help`. [#42](https://github.com/pdm-project/pdm/issues/42)

### Bug Fixes

- Fix the RECORD file in built wheel. [#41](https://github.com/pdm-project/pdm/issues/41)

### Dependencies

- Add dependency `python-cfonts` to display banner. [#42](https://github.com/pdm-project/pdm/issues/42)


Release v0.2.1 (2020-02-18)
---------------------------

### Bug Fixes

- Fix a bug that short python_version markers can't be parsed correctly. [#38](https://github.com/pdm-project/pdm/issues/38)
- Make `_editable_intall.py` compatible with Py2.


Release v0.2.0 (2020-02-14)
---------------------------

### Features & Improvements

- New option: `pdm list --graph` to show a dependency graph of the working set. [#10](https://github.com/pdm-project/pdm/issues/10)
- New option: `pdm update --unconstrained` to ignore the version constraint of given packages. [#13](https://github.com/pdm-project/pdm/issues/13)
- Improve the error message when project is not initialized before running commands. [#19](https://github.com/pdm-project/pdm/issues/19)
- Pinned candidates in lock file are reused when relocking during `pdm install`. [#33](https://github.com/pdm-project/pdm/issues/33)
- Use the pyenv interpreter value if pyenv is installed. [#36](https://github.com/pdm-project/pdm/issues/36)
- Introduce a new command `pdm info` to show project environment information. [#9](https://github.com/pdm-project/pdm/issues/9)

### Bug Fixes

- Fix a bug that candidate hashes will be lost when reused. [#11](https://github.com/pdm-project/pdm/issues/11)

### Dependencies

- Update `pip` to `20.0`, update `pip_shims` to `0.5.0`. [#28](https://github.com/pdm-project/pdm/issues/28)

### Miscellany

- Add a script named `setup_dev.py` for the convenience to setup pdm for development. [#29](https://github.com/pdm-project/pdm/issues/29)


Release v0.1.2 (2020-02-09)
---------------------------

### Features

- New command pdm use to switch python versions. [#8](https://github.com/pdm-project/pdm/issues/8)
- New option pdm list --graph to show a dependency graph. [#10](https://github.com/pdm-project/pdm/issues/10)
- Read metadata from lockfile when pinned candidate is reused.

Release v0.1.1 (2020-02-07)
---------------------------

### Features

- Get version from the specified file. [#6](https://github.com/pdm-project/pdm/issues/6)
- Add column header to pdm list output.

Release v0.1.0 (2020-02-07)
---------------------------

### Bugfixes

- Pass exit code to parent process in pdm run.
- Fix error handling for CLI. [#19](https://github.com/pdm-project/pdm/issues/19)

### Miscellany

- Refactor the installer mocking for tests.

Release v0.0.5 (2020-01-22)
---------------------------

### Improvements

- Ensure pypi index url is fetched in addition to the source settings. [#3](https://github.com/pdm-project/pdm/issues/3)

### Bugfixes

- Fix an issue that leading "c"s are mistakenly stripped. [#5](https://github.com/pdm-project/pdm/issues/5)
- Fix an error with PEP 517 building.

Release v0.0.4 (2020-01-22)
---------------------------

### Improvements

- Fix editable installation, now editable scripts can also be executed from outside!
- Content hash is calculated based on dependencies and sources, not other metadata.

### Bugfixes

- Fix an issue that editable distributions can not be removed.

Release v0.0.3 (2020-01-22)
---------------------------

### Features

- Add `pdm init` to bootstrap a project.

Release v0.0.2 (2020-01-22)
---------------------------

### Features

- A complete functioning PEP 517 build backend.
- `pdm builld` command.

### Miscellany

- Add a Chinese README

### Features

- Add `pdm init` to bootstrap a project.

Release v0.0.1 (2020-01-20)
---------------------------

### Features

- A dependency resolver that just works.
- A PEP 582 installer.
- PEP 440 version specifiers.
- PEP 508 environment markers.
- Running scripts with PEP 582 local packages.
- Console scripts are injected with local paths.
- A neat CLI.
- add, lock, list, update, remove commands.
- PEP 517 build backends.
- Continuous Integration.