Сапегин Павел Николаевич Б41

.gitignore

@@ -0,0 +1,216 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[codz]
+*$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
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+# uv.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
+# poetry.toml
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#   pdm recommends including project-wide configuration in pdm.toml, but excluding .pdm-python.
+#   https://pdm-project.org/en/latest/usage/project/#working-with-version-control
+# pdm.lock
+# pdm.toml
+.pdm-python
+.pdm-build/
+
+# pixi
+#   Similar to Pipfile.lock, it is generally recommended to include pixi.lock in version control.
+# pixi.lock
+#   Pixi creates a virtual environment in the .pixi directory, just like venv module creates one
+#   in the .venv directory. It is recommended not to include this directory in version control.
+.pixi
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# Redis
+*.rdb
+*.aof
+*.pid
+
+# RabbitMQ
+mnesia/
+rabbitmq/
+rabbitmq-data/
+
+# ActiveMQ
+activemq-data/
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.envrc
+.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/
+
+# Abstra
+#   Abstra is an AI-powered process automation framework.
+#   Ignore directories containing user credentials, local state, and settings.
+#   Learn more at https://abstra.io/docs
+.abstra/
+
+# Visual Studio Code
+#   Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore 
+#   that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
+#   and can be added to the global gitignore or merged into this file. However, if you prefer, 
+#   you could uncomment the following to ignore the entire vscode folder
+# .vscode/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
+
+# Marimo
+marimo/_static/
+marimo/_lsp/
+__marimo__/
+
+# Streamlit
+.streamlit/secrets.toml

.python-version

@@ -0,0 +1 @@
+Python 3.12.3

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Pavel Sapegin
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

src/bin_search.py

@@ -1,6 +1,6 @@
-def binSearch(xs: list[int], x: int):
+def binsearch(xs: list[int], x: int):
     left, right = 0, len(xs) - 1
-    while left < right:
+    while left <= right:
         mid = (left + right) // 2
         if xs[mid] == x:
             return mid
@@ -9,3 +9,5 @@ def binSearch(xs: list[int], x: int):
         else:
             right = mid - 1
     return -1
+
+

src/checksum.py

@@ -1,14 +1,41 @@
-def modulo11Checksum(ISBNNumber: str):
+def modulo11checksum(isbnnumber: str):
+    chars = [
+        char.upper() for char in isbnnumber if char.isdigit() or char.upper() == "X"
+    ]
 
-    digits = [int(char) for char in ISBNNumber if char.isdigit()]
-
-    checkDigit = digits[-1]
+    if len(chars) != 10:
+        raise ValueError(f"Некорректная длина, нужно 10 символов вместо {len(chars)}")
 
     total = 0
-    for i in range(len(digits) - 1):
-        weight = 10
-        digit = digits[i]
-        total += digit * weight
+    weight = 10
+    for i in range(len(chars)):
+        if chars[i] == "X" and i == 9:
+            total += 10
+        elif chars[i] == "X" and i != 9:
+            return False
+        else:
+            total += int(chars[i]) * weight
+
+        weight -= 1
+
+    return total % 11 == 0
+
+
+if __name__ == "__main__":
+    while True:
+        try:
+            print("\nВведите ваш номер ISBN-10 для проверки корректности")
+            print("Если хотите выйти, введите -1:")
+            user_input = input()
+            if user_input == "-1":
+                break
+
+            if len(user_input) == 0:
+                print("Ошибка, введена пустая строка")
+                continue
+
+            result = modulo11checksum(user_input)
+            print("correct" if result else "incorrect")
 
-    checksum = total + checkDigit
-    return checksum % 11 == 0
+        except ValueError as ex:
+            print(f"Inccorect, ошибка: {ex}")

test/test_bin_searh.py

@@ -1,13 +1,31 @@
-from src.bin_search import binSearch
+import pytest
 
+from src.bin_search import binsearch
 
-def test_middle():
-    assert binSearch([1, 2, 3, 4, 5], 4) == 3
 
+@pytest.mark.parametrize(["arr","x","expected"],[
+    ([1,2,3,4,5],2,1),
+    ([6,7,8,9,10],8,2),
+    ([11,12,13,14,15],14,3),
+])
+def test_standard_cases(arr,x,expected):
+    assert binsearch(arr,x) == expected
 
-def test_start():
-    assert binSearch([1, 2, 3, 4], 2) == 1
 
+@pytest.mark.parametrize(["arr","x","expected"],[
+    ([10,20,30,40,50],10,0),
+    ([50,60,80,90,100],100,4)
+])
+def test_border_cases(arr,x,expected):
+    assert binsearch(arr,x) == expected
+
+@pytest.mark.parametrize(["arr","x"],[
+    ([1,2,3,4,5],12),
+    ([6,7,8,9,12],43)
+])
+def test_not_exists(arr,x):
+    assert binsearch(arr,x) == -1
+
+def test_empty():
+    assert binsearch([],123) == -1
 
-def test_not_in_list():
-    assert binSearch([1, 2, 3, 4], 5) == -1

test/test_checksum.py

@@ -1,9 +1,23 @@
-from src.checksum import modulo11Checksum
+import pytest
 
+from src.checksum import modulo11checksum
 
-def test_good():
-    assert modulo11Checksum("2-266-11156-8")
 
+@pytest.mark.parametrize(
+    "isbnnum", ["2266111566", "0-393-04002-X", "0-13-110362-8"]
+)
+def test_standard_cases_true(isbnnum):
+    assert modulo11checksum(isbnnum) is True
 
-def test_bad():
-    assert not modulo11Checksum("2-266-11156-3")
+
+@pytest.mark.parametrize(
+    "isbnnum", ["2266111563", "1-57231-999-1", "97504129-6-9"]
+)
+def test_standard_cases_false(isbnnum):
+    assert modulo11checksum(isbnnum) is False
+
+
+@pytest.mark.parametrize("isbnnum", ["5038502", "0-0615-3", "   asasasa-29-6-9"])
+def test_inccorect_input(isbnnum):
+    with pytest.raises(ValueError):
+        modulo11checksum(isbnnum)