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Python objects metadata parser.

Project description

paradigm

In what follows

  • python is an alias for python3.5 or any later version (python3.6 and so on),
  • pypy is an alias for pypy3.5 or any later version (pypy3.6 and so on).

Installation

Install the latest pip & setuptools packages versions:

  • with CPython
    python -m pip install --upgrade pip setuptools
    
  • with PyPy
    pypy -m pip install --upgrade pip setuptools
    

User

Download and install the latest stable version from PyPI repository:

  • with CPython
    python -m pip install --upgrade paradigm
    
  • with PyPy
    pypy -m pip install --upgrade paradigm
    

Developer

Download the latest version from GitHub repository

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

Install:

  • with CPython
    python setup.py install
    
  • with PyPy
    pypy setup.py install
    

Usage

paradigm can be used to obtain signature

>>> from paradigm import signatures

for user-defined functions

>>> def func(foo, bar=None, **kwargs):
        pass
>>> signatures.factory(func)
Plain(Parameter(name='foo', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=False), Parameter(name='bar', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=True), Parameter(name='kwargs', kind=Parameter.Kind.VARIADIC_KEYWORD, has_default=False))

for user-defined classes

>>> class UpperOut:
        def __init__(self, outfile):
            self._outfile = outfile

        def write(self, s):
            self._outfile.write(s.upper())

        def __getattr__(self, name):
            return getattr(self._outfile, name)
>>> signatures.factory(UpperOut)
Plain(Parameter(name='outfile', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=False))

for user-defined classes methods

>>> signatures.factory(UpperOut.write)
Plain(Parameter(name='self', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=False), Parameter(name='s', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=False))

for built-in functions

>>> signatures.factory(any)
# CPython
Plain(Parameter(name='iterable', kind=Parameter.Kind.POSITIONAL_ONLY, has_default=False))
# PyPy
Plain(Parameter(name='seq', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=False))

for built-in classes

>>> signatures.factory(float)
# CPython
Plain(Parameter(name='x', kind=Parameter.Kind.POSITIONAL_ONLY, has_default=True))
# PyPy
Plain(Parameter(name='x', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=True))

for built-in classes methods

>>> signatures.factory(float.as_integer_ratio)
# CPython
Plain(Parameter(name='self', kind=Parameter.Kind.POSITIONAL_ONLY, has_default=False))
# PyPy
Plain(Parameter(name='self', kind=Parameter.Kind.POSITIONAL_OR_KEYWORD, has_default=False))

Checking if object is supported by paradigm can be done with

>>> from paradigm import definitions
>>> definitions.is_supported(int.bit_length)
True
>>> definitions.is_supported(int.conjugate)
False

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.

Notes

To avoid inconsistency between branches and pull requests, bumping version should be merged into master branch as separate pull request.

Running tests

Plain:

  • with CPython
    python setup.py test
    
  • with PyPy
    pypy setup.py test
    

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
    

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