paradigm

In what follows python is an alias for python3.8 or pypy3.8 or any later version (python3.9, pypy3.9 and so on).

Installation

Install the latest pip & setuptools packages versions

python -m pip install --upgrade pip setuptools

User

Download and install the latest stable version from PyPI repository

python -m pip install --upgrade paradigm

Developer

Download the latest version from GitHub repository

git clone https://github.com/lycantropos/paradigm.git
cd paradigm

Install dependencies

python -m pip install -r requirements.txt

Install

python setup.py install

Usage

With setup

>>> import typing
>>> from paradigm.base import (OptionalParameter,
...                            ParameterKind,
...                            PlainSignature,
...                            RequiredParameter,
...                            signature_from_callable)
>>> from typing_extensions import Self
>>> class UpperOut:
...     def __init__(self, outfile: typing.IO[typing.AnyStr]) -> None:
...         self._outfile = outfile
... 
...     def write(self, s: typing.AnyStr) -> None:
...         self._outfile.write(s.upper())
... 
...     def __getattr__(self, name: str) -> typing.Any:
...         return getattr(self._outfile, name)
>>> def func(foo: int, bar: float, *, baz: bool = False, **kwargs: str) -> None:
...     pass

we can obtain a signature of

• user-defined functions

  >>> signature_from_callable(func) == PlainSignature(
  ...     RequiredParameter(annotation=int,
  ...                       kind=ParameterKind.POSITIONAL_OR_KEYWORD,
  ...                       name='foo'),
  ...     RequiredParameter(annotation=float,
  ...                       kind=ParameterKind.POSITIONAL_OR_KEYWORD,
  ...                       name='bar'),
  ...     OptionalParameter(annotation=bool,
  ...                       default=False,
  ...                       kind=ParameterKind.KEYWORD_ONLY,
  ...                       name='baz'),
  ...     OptionalParameter(annotation=str,
  ...                       kind=ParameterKind.VARIADIC_KEYWORD,
  ...                       name='kwargs'),
  ...     returns=None
  ... )
  True

• user-defined classes

  >>> signature_from_callable(UpperOut) == PlainSignature(
  ...     RequiredParameter(annotation=typing.IO[typing.AnyStr],
  ...                       kind=ParameterKind.POSITIONAL_OR_KEYWORD,
  ...                       name='outfile'),
  ...     returns=Self
  ... )
  True

• user-defined classes methods

  >>> signature_from_callable(UpperOut.write) == PlainSignature(
  ...     RequiredParameter(annotation=typing.Any,
  ...                       kind=ParameterKind.POSITIONAL_OR_KEYWORD,
  ...                       name='self'),
  ...     RequiredParameter(annotation=typing.AnyStr,
  ...                       kind=ParameterKind.POSITIONAL_OR_KEYWORD,
  ...                       name='s'),
  ...     returns=None
  ... )
  True

• built-in functions

  >>> signature_from_callable(any) == PlainSignature(
  ...     RequiredParameter(annotation=typing.Iterable[object],
  ...                       kind=ParameterKind.POSITIONAL_ONLY,
  ...                       name='__iterable'),
  ...     returns=bool
  ... )
  True

• built-in classes

  >>> signature_from_callable(bool) == PlainSignature(
  ...     OptionalParameter(annotation=object,
  ...                       kind=ParameterKind.POSITIONAL_ONLY,
  ...                       name='__o'),
  ...     returns=Self
  ... )
  True

• built-in classes methods

  >>> signature_from_callable(float.hex) == PlainSignature(
  ...     RequiredParameter(annotation=Self,
  ...                       kind=ParameterKind.POSITIONAL_ONLY,
  ...                       name='self'),
  ...     returns=str
  ... )
  True

Development

Bumping version

Preparation

Install bump2version.

Pre-release

Choose which version number category to bump following semver specification.

Test bumping version

bump2version --dry-run --verbose $CATEGORY

where $CATEGORY is the target version number category name, possible values are patch/minor/major.

Bump version

bump2version --verbose $CATEGORY

This will set version to major.minor.patch-alpha.

Release

Test bumping version

bump2version --dry-run --verbose release

Bump version

bump2version --verbose release

This will set version to major.minor.patch.

Running tests

Install dependencies

python -m pip install -r requirements-tests.txt

PlainSignature

pytest

Inside Docker container:

• with CPython

  docker-compose --file docker-compose.cpython.yml up

• with PyPy

  docker-compose --file docker-compose.pypy.yml up

Bash script (e.g. can be used in Git hooks):

• with CPython

  ./run-tests.sh

  or

  ./run-tests.sh cpython

• with PyPy

  ./run-tests.sh pypy

PowerShell script (e.g. can be used in Git hooks):

• with CPython

  .\run-tests.ps1

  or

  .\run-tests.ps1 cpython

• with PyPy

  .\run-tests.ps1 pypy