Create requirements.txt file or add some guide text in README or somewhere for python packages

[BaseMax]

python3 -m pip install -U mypy

C:\Files\Projects\Salam>python -m pip install -U mypy
Defaulting to user installation because normal site-packages is not writeable
Collecting mypy
  Using cached mypy-1.14.0-cp312-cp312-win_amd64.whl.metadata (2.2 kB)
Collecting typing_extensions>=4.6.0 (from mypy)
  Using cached typing_extensions-4.12.2-py3-none-any.whl.metadata (3.0 kB)
Collecting mypy_extensions>=1.0.0 (from mypy)
  Using cached mypy_extensions-1.0.0-py3-none-any.whl.metadata (1.1 kB)
Using cached mypy-1.14.0-cp312-cp312-win_amd64.whl (9.9 MB)
Using cached mypy_extensions-1.0.0-py3-none-any.whl (4.7 kB)
Using cached typing_extensions-4.12.2-py3-none-any.whl (37 kB)
Installing collected packages: typing_extensions, mypy_extensions, mypy
Successfully installed mypy-1.14.0 mypy_extensions-1.0.0 typing_extensions-4.12.2

[BaseMax]

How to test?

pre-commit run --all-files

mypy.....................................................................Failed
- hook id: mypy
- exit code: 1

config\module\utils.py:3: error: Library stubs not installed for "yaml"  [import-untyped]
config\layout\attribute\style\value.convert.py:1: error: Library stubs not installed for "yaml"  [import-untyped]
config\layout\attribute\style\value.convert.py:4: error: Function is missing a type annotation  [no-untyped-def]
config\admin\app.py:3: error: Library stubs not installed for "yaml"  [import-untyped]
config\admin\app.py:3: note: Hint: "python3 -m pip install types-PyYAML"
config\admin\app.py:3: note: (or run "mypy --install-types" to install all missing stub packages)
config\admin\app.py:3: note: See https://mypy.readthedocs.io/en/stable/running_mypy.html#missing-imports
config\admin\app.py:16: error: Function is missing a type annotation  [no-untyped-def]
config\admin\app.py:67: error: Incompatible return value type (got "set[Any]", expected "list[str]")  [return-value]
config\admin\app.py:134: error: Function is missing a return type annotation  [no-untyped-def]
config\sync.py:6: error: Library stubs not installed for "yaml"  [import-untyped]
config\sync.py:237: error: Unsupported operand types for + ("str" and "None")  [operator]
config\sync.py:237: note: Right operand is of type "Optional[Any]"
config\sync.py:272: error: Unsupported operand types for + ("str" and "None")  [operator]
config\sync.py:272: note: Right operand is of type "Optional[Any]"
config\sync.py:566: error: Function is missing a return type annotation  [no-untyped-def]
config\sync.py:580: error: Function is missing a type annotation  [no-untyped-def]
Found 12 errors in 4 files (checked 16 source files)

[jbampton]

refs #304

[jbampton]

refs #410

[BaseMax]

Many thanks