fix lockfile

pdm.lock

@@ -96,6 +96,16 @@ termcolor = ">=1.1.0"
 colorama = ">=0.3.9"
 six = ">=1.12.0"
 
+[[package]]
+name = "importlib-metadata"
+sections = ["dev"]
+version = "1.6.0"
+marker = "python_version >= \"3.5\" and python_version < \"3.8\""
+summary = "Read metadata from Python packages"
+
+[package.dependencies]
+zipp = ">=0.5"
+
 [[package]]
 name = "incremental"
 sections = ["dev"]
@@ -267,6 +277,9 @@ version = "0.13.1"
 marker = "python_version >= \"3.5\""
 summary = "plugin and hook calling mechanisms for python"
 
+[package.dependencies]
+importlib-metadata = {marker = "python_version < \"3.8\"", version = ">=0.12"}
+
 [[package]]
 name = "py"
 sections = ["dev"]
@@ -312,6 +325,7 @@ attrs = ">=17.4.0"
 more-itertools = ">=4.0.0"
 pluggy = "<1.0,>=0.12"
 wcwidth = "*"
+importlib-metadata = {marker = "python_version < \"3.8\"", version = ">=0.12"}
 atomicwrites = {marker = "sys_platform == \"win32\"", version = ">=1.0"}
 colorama = {marker = "sys_platform == \"win32\"", version = "*"}
 
@@ -462,6 +476,13 @@ version = "0.34.2"
 marker = "python_version >= \"2.7\" and python_version not in \"3.0, 3.1, 3.2, 3.3, 3.4\""
 summary = "A built-package format for Python"
 
+[[package]]
+name = "zipp"
+sections = ["dev"]
+version = "3.1.0"
+marker = "python_version >= \"3.6\" and python_version < \"3.8\""
+summary = "Backport of pathlib-compatible object wrapper for zip files"
+
 [metadata]
 "apipkg 1.5" = [
     {file = "apipkg-1.5.tar.gz", hash = "sha256:37228cda29411948b422fae072f57e31d3396d2ee1c9783775980ee9c9990af6"},
@@ -541,6 +562,10 @@ summary = "A built-package format for Python"
     {file = "halo-0.0.29.tar.gz", hash = "sha256:a8aeb0164e269d7c96fb7444b2a4caaa09b8989fa0c85e6a26e8b2c6d1af3b9d"},
     {file = "halo-0.0.29-py3-none-any.whl", hash = "sha256:67996649083229a9b7a93fe7c871c97d40bd2f1a988540eccf948a6b1844f644"},
 ]
+"importlib-metadata 1.6.0" = [
+    {file = "importlib_metadata-1.6.0.tar.gz", hash = "sha256:34513a8a0c4962bc66d35b359558fd8a5e10cd472d37aec5f66858addef32c1e"},
+    {file = "importlib_metadata-1.6.0-py2.py3-none-any.whl", hash = "sha256:2a688cbaa90e0cc587f1df48bdc97a6eadccdcd9c35fb3f976a09e3b5016d90f"},
+]
 "incremental 17.5.0" = [
     {file = "incremental-17.5.0.tar.gz", hash = "sha256:7b751696aaf36eebfab537e458929e194460051ccad279c72b755a167eebd4b3"},
     {file = "incremental-17.5.0-py2.py3-none-any.whl", hash = "sha256:717e12246dddf231a349175f48d74d93e2897244939173b01974ab6661406b9f"},
@@ -741,6 +766,10 @@ summary = "A built-package format for Python"
     {file = "wheel-0.34.2.tar.gz", hash = "sha256:8788e9155fe14f54164c1b9eb0a319d98ef02c160725587ad60f14ddc57b6f96"},
     {file = "wheel-0.34.2-py2.py3-none-any.whl", hash = "sha256:df277cb51e61359aba502208d680f90c0493adec6f0e848af94948778aed386e"},
 ]
+"zipp 3.1.0" = [
+    {file = "zipp-3.1.0.tar.gz", hash = "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"},
+    {file = "zipp-3.1.0-py3-none-any.whl", hash = "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b"},
+]
 
 [root]
 content_hash = "md5:fbac358de4e5b0747e3a27154febb055"

pdm/models/environment.py

@@ -18,7 +18,6 @@ from pythonfinder.environment import PYENV_INSTALLED, PYENV_ROOT
 
 from pdm.exceptions import NoPythonVersion
 from pdm.iostream import stream
-from pdm.models.specifiers import PySpecSet
 from pdm.utils import (
     allow_all_wheels,
     cached_property,
@@ -342,12 +341,6 @@ class GlobalEnvironment(Environment):
 
     is_global = True
 
-    def __init__(self, project: Project) -> None:
-        super().__init__(project)
-        self.python_requires = PySpecSet(
-            "==" + get_python_version(self.python_executable, True)
-        )
-
     def get_paths(self) -> Dict[str, str]:
         paths = get_sys_config_paths(self.python_executable)
         paths["prefix"] = paths["data"]

pdm/project/core.py

@@ -29,6 +29,7 @@ from pdm.utils import (
     atomic_open_for_write,
     cached_property,
     find_project_root,
+    get_python_version,
     get_venv_python,
 )
 
@@ -141,7 +142,13 @@ class Project:
     @cached_property
     def environment(self) -> Environment:
         if self.is_global:
-            return GlobalEnvironment(self)
+            env = GlobalEnvironment(self)
+            # Rewrite global project's python requires to be
+            # compatible with the exact version
+            env.python_requires = PySpecSet(
+                "==" + get_python_version(env.python_executable, True)
+            )
+            return env
         if self.config["use_venv"] and "VIRTUAL_ENV" in os.environ:
             self.project_config["python.path"] = get_venv_python()
             return GlobalEnvironment(self)

pdm/utils.py

@@ -423,6 +423,7 @@ def get_venv_python() -> Optional[str]:
 @contextmanager
 def atomic_open_for_write(filename: Union[Path, str], *, encoding: str = "utf-8"):
     fd, name = tempfile.mkstemp("-atomic-write", "pdm-")
+    filename = str(filename)
     try:
         f = open(fd, "w", encoding=encoding)
         yield f