parse_setup ansible module

gistfile1.py

#!/usr/bin/python
import os
import sys
import ast
import textwrap


def parse_setup(setup_filename):
    """Parse setup.py and return args and keywords args to its setup
    function call

    """
    dirname = os.path.dirname(setup_filename)
    sys.path.append(dirname)
    mock_setup = textwrap.dedent('''\
    def setup(*args, **kwargs):
        __setup_calls__.append((args, kwargs))
    ''')
    parsed_mock_setup = ast.parse(mock_setup, filename=setup_filename)
    with open(setup_filename, 'rt') as setup_file:
        parsed = ast.parse(setup_file.read())
        for index, node in enumerate(parsed.body[:]):
            if (
                not isinstance(node, ast.Expr) or
                not isinstance(node.value, ast.Call) or
                node.value.func.id != 'setup'
            ):
                continue
            parsed.body[index:index] = parsed_mock_setup.body
            break

    fixed = ast.fix_missing_locations(parsed)
    codeobj = compile(fixed, setup_filename, 'exec')
    local_vars = {}
    global_vars = {'__setup_calls__': []}
    exec(codeobj, global_vars, local_vars)
    return global_vars['__setup_calls__'][0]


def main():
    module = AnsibleModule(
        argument_spec=dict(
            path=dict(required=True),
        ),
    )

    path = module.params['path']
    _, kwargs = parse_setup(path)
    install_requires = {}
    for line in kwargs['install_requires']:
        parts = line.split('==')
        name = parts[0].split('[')[0]
        install_requires[name] = ''.join(parts[1:])

    module.exit_json(
        failed=False,
        changed=False,
        install_requires=install_requires,
    )

# import module snippets
from ansible.module_utils.basic import *

main()