setup.py

import ast
import codecs
import os

from setuptools import setup


here = os.path.abspath(os.path.dirname(__file__))


class VersionFinder(ast.NodeVisitor):
    def __init__(self):
        self.version = None

    def visit_Assign(self, node):
        if node.targets[0].id == "__version__":
            self.version = node.value.s


def read(*parts):
    return codecs.open(os.path.join(here, *parts), "r", encoding="utf8").read()


def find_version(*parts):
    finder = VersionFinder()
    finder.visit(ast.parse(read(*parts)))
    return finder.version


setup(
    name="envdir",
    version=find_version("envdir", "version.py"),
    classifiers=[
        "Development Status :: 4 - Beta",
        "Intended Audience :: Developers",
        "License :: OSI Approved :: MIT License",
        "Topic :: Software Development :: Build Tools",
        "Programming Language :: Python :: 2",
        "Programming Language :: Python :: 2.7",
        "Programming Language :: Python :: 3",
        "Programming Language :: Python :: 3.4",
        "Programming Language :: Python :: 3.5",
        "Programming Language :: Python :: 3.6",
        "Programming Language :: Python :: 3.7",
    ],
    description="A Python port of daemontools' envdir.",
    long_description=(
        read("README.rst") + "\n\n" + read(os.path.join("docs", "changelog.rst"))
    ),
    author="Jannis Leidel",
    author_email="jannis@leidel.info",
    url="https://envdir.readthedocs.io/",
    license="MIT",
    packages=["envdir"],
    entry_points=dict(console_scripts=["envdir=envdir:run", "envshell=envdir:shell"]),
    zip_safe=False,
)