python setup.py安装不能使用最新的setuptools：'<*>.egg-info‘中没有脚本

Question

使用setuptools==27.2.0，我们的包picca (https://github.com/igmhub/picca)的travis测试运行良好。使用最新版本的setuptools==41.0.0：https://github.com/igmhub/picca/issues/591就不再是这样了。

这个问题似乎与setuptools试图读取脚本的位置有关。我得到以下错误：

Traceback (most recent call last):
  File "/home/travis/virtualenv/python3.6.3/bin/picca_deltas.py", line 4, in <module>
    __import__('pkg_resources').run_script('picca==4.0', 'picca_deltas.py')
  File "/home/travis/virtualenv/python3.6.3/lib/python3.6/site-packages/pkg_resources/__init__.py", line 666, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/home/travis/virtualenv/python3.6.3/lib/python3.6/site-packages/pkg_resources/__init__.py", line 1437, in run_script
    .format(**locals()),
pkg_resources.ResolutionError: Script 'scripts/picca_deltas.py' not found in metadata at '/home/travis/build/igmhub/picca/py/picca.egg-info'

当查看路径/home/travis/build/igmhub/picca/py/picca.egg-info/时，确实没有scripts文件夹。我们的python设置如下所示，有没有什么需要修改的地方，以便安装工具知道在哪里可以找到脚本？

#!/usr/bin/env python

import glob

from setuptools import setup

scripts = glob.glob('bin/*')

description = "Package for Igm Cosmological-Correlations Analyses"

version="4.0"
setup(name="picca",
    version=version,
    description=description,
    url="https://github.com/igmhub/picca",
    author="<***>",
    author_email="<***>",
    packages=['picca','picca.fitter2'],
    package_dir = {'': 'py'},
    package_data = {'picca': ['fitter2/models/*/*.fits']},
    install_requires=['numpy','scipy','iminuit','healpy','fitsio',
        'llvmlite','numba','h5py','future','setuptools'],
    test_suite='picca.test.test_cor',
    scripts = scripts
)

命令/home/travis/virtualenv/python3.6.3/bin/picca_deltas.py在我的计算机上如下所示：

#!<where is python>/python/3.6.3/bin/python
# EASY-INSTALL-SCRIPT: 'picca==4.0','picca_deltas.py'
__requires__ = 'picca==4.0'
__import__('pkg_resources').run_script('picca==4.0', 'picca_deltas.py')

谢谢你的帮助。

Answer 1

这是一个大胆的尝试，但我也遇到了同样的问题。

看看/home/travis/build/igmhub/picca/py/picca.egg-info看起来像您的build文件夹。它不应该查看build文件夹中的egg-info，而是您安装的那个文件夹。

只需更改目录，您就会很好：

cd .. # or cd anywhere outside your build folder
picca_deltas.py

应该工作得很好。

Answer 2

我找到了一个修复，我现在使用pytest而不是python setup.py test来运行测试。https://github.com/igmhub/picca/pull/698/files。线索在下面的消息中；

WARNING: Testing via this command is deprecated and will be removed in a future version. Users looking for a generic test entry point independent of test runner are encouraged to use tox.