Python Dependency Injection Framework

Question

Is there a framework equivalent to Guice (http://code.google.com/p/google-guice) for Python?

Answer 1

I made a lib to do this https://github.com/ettoreleandrotognoli/python-cdi I hope that helps

It's available on pypi: https://pypi.python.org/pypi/pycdi

With it you can make injections with python2

import logging
from logging import Logger

from pycdi import Inject, Singleton, Producer
from pycdi.shortcuts import call


@Producer(str, _context='app_name')
def get_app_name():
    return 'PyCDI'


@Singleton(produce_type=Logger)
@Inject(app_name=str, _context='app_name')
def get_logger(app_name):
    return logging.getLogger(app_name)


@Inject(name=(str, 'app_name'), logger=Logger)
def main(name, logger):
    logger.info('I\'m starting...')
    print('Hello World!!!\nI\'m a example of %s' % name)
    logger.debug('I\'m finishing...')


call(main)

And using type hints from python3

import logging
from logging import Logger

from pycdi import Inject, Singleton, Producer
from pycdi.shortcuts import call


@Producer(_context='app_name')
def get_app_name() -> str:
    return 'PyCDI'


@Singleton()
@Inject(logger_name='app_name')
def get_logger(logger_name: str) -> Logger:
    return logging.getLogger(logger_name)


@Inject(name='app_name')
def main(name: str, logger: Logger):
    logger.info('I\'m starting...')
    print('Hello World!!!\nI\'m a example of %s' % name)
    logger.debug('I\'m finishing...')


call(main)