From bbb8938f0ce2848db694bdc5a439ee36fdfe030e Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:02:39 +0300 Subject: [PATCH 1/8] Add .gitinore --- .gitignore | 176 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 176 insertions(+) create mode 100644 .gitignore diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ad4a1f1 --- /dev/null +++ b/.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 From d7d77e8fd2a13b712b283de697fea41c7fa1e99a Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:16:40 +0300 Subject: [PATCH 2/8] Add checking for pow < 0 --- src/fast_pow.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/fast_pow.py b/src/fast_pow.py index 1ba1dc1..80eaf4e 100644 --- a/src/fast_pow.py +++ b/src/fast_pow.py @@ -1,4 +1,6 @@ -def fastPow(number, power): +def fast_pow(number, power): + if power < 0: + return 1 / fast_pow(number, -power) result = number while power != 1: result *= result From 5b47b2e3ac61f37b95d7b8815e83dc07f1ef32f7 Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:19:32 +0300 Subject: [PATCH 3/8] Add a special case for 0 --- src/fast_pow.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/fast_pow.py b/src/fast_pow.py index 80eaf4e..6a6293e 100644 --- a/src/fast_pow.py +++ b/src/fast_pow.py @@ -1,6 +1,8 @@ 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 From 88de2555046208a8d3025745f9849fb7cfb337c7 Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:37:14 +0300 Subject: [PATCH 4/8] Delete extra brackets --- src/luhn.py | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/luhn.py b/src/luhn.py index 11d993c..0abaaae 100644 --- a/src/luhn.py +++ b/src/luhn.py @@ -1,7 +1,7 @@ -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: From c45cbcdbcebc92bb1da4cfd5c9544c36503a49c7 Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:40:08 +0300 Subject: [PATCH 5/8] Fix algorithm by definition(was mistake in the implement) --- src/luhn.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/luhn.py b/src/luhn.py index 0abaaae..7809240 100644 --- a/src/luhn.py +++ b/src/luhn.py @@ -4,7 +4,9 @@ def luhn_check(card_number): 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 From c368cb5c93adeca8109284fd5989447daf0fe1cd Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:45:52 +0300 Subject: [PATCH 6/8] Add test for pow = 0 --- test/test_fast_pow.py | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/test/test_fast_pow.py b/test/test_fast_pow.py index 5e4aebd..aa91d54 100644 --- a/test/test_fast_pow.py +++ b/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 From da616e3928f119d51214065db6ad096d40219b2a Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:47:33 +0300 Subject: [PATCH 7/8] Succesfull completion of test --- test/test_luhn.py | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/test/test_luhn.py b/test/test_luhn.py index 1c021a2..d042e3d 100644 --- a/test/test_luhn.py +++ b/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") \ No newline at end of file + assert not luhn_check("4561 2612 1234 5463") From d2e714e88f9c90f3a77b4905edab21bec8e97c36 Mon Sep 17 00:00:00 2001 From: Ella Zamyatina Date: Thu, 23 Oct 2025 14:55:49 +0300 Subject: [PATCH 8/8] Implement console utility --- src/luhn.py | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/src/luhn.py b/src/luhn.py index 7809240..64fb95b 100644 --- a/src/luhn.py +++ b/src/luhn.py @@ -14,3 +14,41 @@ def luhn_check(card_number): 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()