Fix all mistakes branch

.gitignore

@@ -0,0 +1,176 @@
+# Created by https://www.toptal.com/developers/gitignore/api/python
+# Edit at https://www.toptal.com/developers/gitignore?templates=python
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+### Python Patch ###
+# Poetry local configuration file - https://python-poetry.org/docs/configuration/#local-configuration
+poetry.toml
+
+# ruff
+.ruff_cache/
+
+# LSP config files
+pyrightconfig.json
+
+# End of https://www.toptal.com/developers/gitignore/api/python

src/fast_pow.py

@@ -1,4 +1,8 @@
-def fastPow(number, power):
+def fast_pow(number, power):
+    if power < 0:
+        return 1 / fast_pow(number, -power)
+    if power == 0:  # add special case
+        return 1
     result = number
     while power != 1:
         result *= result

src/luhn.py

@@ -1,14 +1,54 @@
-def luhnСheck(cardNumber):
-    digits = [int(d) for d in str(cardNumber) if d.isdigit()]
+def luhn_check(card_number):
+    digits = [int(d) for d in str(card_number) if d.isdigit()]
     control = digits.pop()
-    parity = (len(digits))%2
+    parity = len(digits) % 2  # delete extra brackets
     total = 0
     for i in range(len(digits)):
-        if i % 2 == parity:
+        if (
+            i % 2 != parity
+        ):  # fix error, != instead of == by definition of the algorithm
             doubled = digits[i] * 2
             if doubled > 9:
                 doubled -= 9
             total += doubled
         else:
             total += digits[i]
     return (total + control) % 10 == 0
+
+
+def main():
+    print("Проверка номера карты по алгоритму Луна")
+    print("Введите номер карты для проверки")
+    print("Для выхода введите -1")
+    print()
+
+    while True:
+        try:
+            user_input = input("Введите номер карты: ").strip()
+
+            if user_input == "-1":
+                print("Выход из программы.")
+                break
+
+            if not user_input:
+                print("Ошибка: Введите номер карты или -1 для выхода")
+                continue
+
+            # Проверка по алгоритму Луна
+            if luhn_check(user_input):
+                print("correct")
+            else:
+                print("incorrect")
+
+        except KeyboardInterrupt:
+            print("\n\nПрограмма прервана пользователем.")
+            break
+        except Exception as e:
+            print(f"Произошла непредвиденная ошибка: {e}")
+            print("Пожалуйста, попробуйте еще раз")
+
+        print()
+
+
+if __name__ == "__main__":
+    main()

test/test_fast_pow.py

@@ -1,9 +1,9 @@
-from src.fast_pow import fastPow
+from src.fast_pow import fast_pow
 
 
 def test_two_power_two():
-    assert fastPow(2, 2) == 4
+    assert fast_pow(2, 2) == 4
 
 
 def test_negative():
-    assert fastPow(-1, 4) == 1
+    assert fast_pow(-1, 4) == 1

test/test_luhn.py

@@ -1,9 +1,9 @@
-from src.luhn import luhnСheck
+from src.luhn import luhn_check
 
 
 def test_good():
-    assert luhnСheck("8571 2612 1234 5467")
+    assert luhn_check("8571 2612 1234 5467")
 
 
 def test_bad():
-    assert not luhnСheck("4561 2612 1234 5463")
+    assert not luhn_check("4561 2612 1234 5463")