* [mypy] fix type annotations for graphs/a_star.py #4052

* updating DIRECTORY.md

* Add from __future__ import anotations

* rename delta by DIRECTIONS
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* Rename delta by DIRECTIONS in all code

* Enclose script in __main__ code block

* Refactor DIRECTIONS with comments for readibility

* Delete heuristic example comment

* Do not print, return all values

* Fix multilines

* fix black

* Update a_star.py
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Co-authored-by: NJohn Law <johnlaw.po@gmail.com>

* Add missing type annotation

* Fix conversion bug

This failed when called with the documented example of `1.5` and was correctly
pointed out by `mypy --strict`

The list comprehension shortcut was implicitly expecting a return
value causing a mypy error since `insert_tail` doesn't return a value

* Update annotations to Python 3.10 #4052

* Add floats doctest

* Copy list to avoid changing input unpredictably

* Refactor code to make it readable

* updating DIRECTORY.md

* Improve raised ValueErrors and add doctest

* Split doctest in multiples lines

* Change ValueError to Monogons and Digons are not poly

* Correct doctest refering number of sides
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* updating DIRECTORY.md

* pass integer to `math.factorial` in `project_euler/problem_015`

* remove duplicated factorial function

* updating DIRECTORY.md

* Update maths/factorial_iterative.py
Co-authored-by: NChristian Clauss <cclauss@me.com>

* Update factorial_iterative.py
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* Add deque_from_scratch.py

* added deque_from_scratch.py

* add extend, extendleft and make comparison

* updated operations list

* fix doctest on Deque.__iter__

* pre-commit fix

* time complexity comments, change type hints

* pre-commit fix

* added more doctests

Change how many "=" sign to how many "=" signs

* Fix several typos

* Update bit_manipulation/README.md
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* Update double_sort.py
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* Added regular expression implimentation using dp

* replaced input() with example values

* Apply suggestions from code review
Co-authored-by: NChristian Clauss <cclauss@me.com>

* changed returning value to bool and added test cases

* added doctest
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* added test cases

* Apply suggestions from code review
Co-authored-by: NJohn Law <johnlaw.po@gmail.com>

* shifted to strings

* Changed filename

* Update function name to match_pattern
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* Update function name to match_pattern
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Co-authored-by: NChristian Clauss <cclauss@me.com>
Co-authored-by: NJohn Law <johnlaw.po@gmail.com>

This is a followup to https://github.com/TheAlgorithms/Python/pull/4973#issuecomment-933117382

As per given suggestion, I've added type hints to certain methods that don't have them.  I have also added documentation and example doctests as a usage example for (most of) those that don't have them.

I have also added another test case following the previous test case's format. I noticed that the existing test case from previous pull request might be redundant with the ones I've made, so I decided to create a specific situation where the linked list would have to keep different kinds of data types for each node, in `test_singly_linked_list_2` test function.

Some minor changes in strings has been done to keep things consistent with other parts of the document. If it is undesirable, please let me know.

* Added check_strong_password.py

* Corrected Comment

* Updated

* Updated check_strong_password.py

* Ran Pre-Commit

Changed it's (it is) to its

* length_conversion.py: Deal with uppercase and abbreviations

* updating DIRECTORY.md
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* Add polybius cipher

* Fix polybius.py build issues and add test

* Remove exception detail from doctest

These details are configuration dependant so should be removed according to https://docs.python.org/3/library/doctest.html

* updating DIRECTORY.md
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* Added length unit conversions

Conversion of length units were added with respective tests being implemented and passed.
Available Units:- Metre,Kilometre,Feet,Inch,Centimeter,Yard,Foot,Mile,Millimeter

* Formatted File

File was formatted to go as per repo rules

* Reformatted file

* Reformatted code once again

* Added more test 

Added test to evaluate whether the code handles wrong arguements passed

* Update length_conversions.py

* Update length_conversions.py

* Update length_conversions.py

* Update length_conversions.py

* Update length_conversions.py

* Update length_conversions.py

* Update length_conversions.py

* Fixed  Minor errors in test

One of the test was failing and it was fixed
Co-authored-by: NChristian Clauss <cclauss@me.com>

Ref - http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetKernighan

* added schur complement and tests to linear algebra

* updated according to checklist

* updated variable names and typing

* added two testcases for input validation

* fixed import order
Co-authored-by: NIvan Radonov <ivan.radonov@ad.mentormate.bg>

* Create join.py

Because we have a split.py

* Update join.py

* Update join.py

* Update join.py

* Update join.py

* Update join.py

* Update strings/join.py
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* Update join.py

* Update join.py

* Update join.py

* Update join.py
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* Added giphy.py to fetch gifs on a given topic

* Modified code
[*]Added doctest
[*]Formatted with black

* Minor change

* Minor refactoring to avoid name clash

* Made necessary changes as per review

* Update web_programming/giphy.py
Co-authored-by: NChristian Clauss <cclauss@me.com>

* Apply suggestions from code review

* Final cleanup

* Placate psf/black
Co-authored-by: NChristian Clauss <cclauss@me.com>

* added harmonic mean

* Update maths/series/harmonic_mean.py

Updated the write-up of reference given in the code.
Co-authored-by: NJohn Law <johnlaw.po@gmail.com>

* changes in arithmetic and geometric mean code

* mean and series added in a single file
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* fix: type annotations for pypi 🏷️

Fixes #4052

* updating DIRECTORY.md

* apply suggestions from code review
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* fix mypy error

* updating DIRECTORY.md

* simplify code

* run black

* fix doc consistency

* Fix doc

* fix doc
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* adde solution to problem 092

* added solution to problem 092

* fixed the pre-comit shebang issue

* Add tests to morse_code.py

@dhruvmanila @poyea Your reviews, please.

* updating DIRECTORY.md
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* Added morphological operations, fixes: #5197

* Added dilation tests and type hints

* Added erosion tests and type hints

* fixes: TheAlgorithms#5197

* fixes: TheAlgorithms#5197

* Update erosion_operation.py

* made suggested changes in dilation

* made suggested changes in erosion

* made suggested changes in dilation

* removed extra spaces in the tests

* removed extra spaces in the tests

Improved readability of web_programming/get_imdbtop.py and added documentations with doctests (#4855)

* improved readability of the existing method by reformatting, adding documentations with doctests.

* improved readability of the existing method by reformatting, adding documentations with doctests.

* fixed typo in test

* added doctest to parse dictionary method

* added doctest to parse dictionary method

* Changed return type, removed print() from method and implemented doctests as suggested

* Fixed doctest error, removed print() from method, created new script as suggested

* Update get_imdbtop.py

* Fix typo discovered by codespell

* return ()
Co-authored-by: NChristian Clauss <cclauss@me.com>

* Added new script to open the google image tab with a search query.

* Added new script to open the google image tab with a search query.

* Added new script to open the google image tab with a search query with doctests.

* Fixed doctest error, removed print() from method, changed return type

* Update web_programming/show_image_tab_from_google_query.py

using iterators instead of lists
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* Update web_programming/show_image_tab_from_google_query.py

Improve readability by removing one-time used variable
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* Update web_programming/show_image_tab_from_google_query.py

Decreasing complication through standard practices.
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* Update web_programming/show_image_tab_from_google_query.py

Exception Handling
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* changed complete method to download images from google search query

* Update download_images_from_google_query.py

* Delete show_image_tab_from_google_query.py
Co-authored-by: NChristian Clauss <cclauss@me.com>

* matching algorithm for min vertex cover problem

* fixed hint on row 37

* changed variable names

* provided doctest for get_edges function

* Removed dict.keys() iteration

* Update matching_min_vertex_cover.py
Co-authored-by: NChristian Clauss <cclauss@me.com>

* added complete graph generator function

* added doctest, type hints, wikipedia explanation

* added return type hint for function complete_graph

* added descriptive name for the parameter: n

* random graph generator with doctest and type hints

* added Greedy min vertex algorithm

* pre-commit hook(s) made changes

* Delete complete_graph_generator.py

* Delete random_graph_generator.py

* fixed doctest

* updated commit following highligths

* fixed following pre-commit highlights

* modified variables names

* It is OK to test ./scripts

* updating DIRECTORY.md

* Update build.yml
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* Add Proth number to maths

* Add test for 0 and more informative output

* Fixing test failure issue - unused variable

* Update proth_number.py
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* Create baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py

* Update baconian_cipher.py