Getting info from .py files without eval

__init__.py

# coding=utf-8
from .ddd import (
    DDD
)

__version__ = "0.5.1"
__author__ = "Łukasz Bołdys"

setup.py

# coding=utf-8
import os
import ast
from setuptools import setup, find_packages


def get_info(filename):
    info = {}
    with open(filename) as _file:
        data = ast.parse(_file.read())
        for node in data.body:
            if type(node) != ast.Assign:
                continue
            if type(node.value) not in [ast.Str, ast.Num]:
                continue
            name = None
            for target in node.targets:
                name = target.id
            if type(node.value) == ast.Str:
                info[name] = node.value.s
            elif type(node.value) == ast.Num:
                info[name] = node.value.n
    return info

file_with_packageinfo = "esmfiledecoder/__init__.py"
info = get_info(file_with_packageinfo)

here = os.path.abspath(os.path.dirname(__file__))
# README = open(os.path.join(here, 'README.txt')).read()
# CHANGES = open(os.path.join(here, 'CHANGES.txt')).read()


requires = [
]

setup(name='ESMFileDecoder',
      version=info.get('__version__', '0.0.0'),
      description='ESM (ddd) file decoder.',
      # long_description=README + '\n\n' + CHANGES,
      classifiers=[
          "Programming Language :: Python",
      ],
      author=info.get('__author__', 'Łukasz Bołdys'),
      author_email='mail@utek.pl',
      url='http://utek.pl',
      keywords='file tachograph decoder',
      packages=find_packages(),
      include_package_data=True,
      zip_safe=False,
      test_suite='esmfiledecoder',
      install_requires=requires,
      entry_points="""\
      [console_scripts]
          ddd = esmfiledecoder.scripts.analyze:main
      """,
      )