Can't find dependency_links.txt

Originally reported by: ishakir (Bitbucket: ishakir, GitHub: ishakir)

I'm calling setup.py from ant:

<exec executable="python" failonerror="true">
    <arg value="setup.py"/>
    <arg value="sdist"/>
    <arg value="--format=gztar"/>
</exec>

setup.py contains (among other things)

from distutils.core import setup
from setuptools import find_packages

setup(
    name=name,
    version="0.1.07",

    description="Some description",
    author="Some author",
    author_email="someone@company.com",

    packages=find_packages(source_directory),
    package_dir={"": source_directory},

    install_requires=[]
)

I'll post the most relevant part of the logs below to demonstrate what the problem is:

 [exec] C:\Python27\Lib\site-packages\setuptools\dist.py:282: UserWarning: Normalizing '0.1.07' to '0.1.7'
 [exec] running sdist
 [exec] running egg_info
 [exec] writing dependency_links to python\project_name_branch.egg-info\dependency_links.txt
 [exec] running check
 [exec] copying python\project_name_branch.egg-info\dependency_links.txt -> project_name@branch-version\python\project_name_branch.egg-info
 [exec] error: [Errno 2] No such file or directory: 'project_name@branch-verison\\python\\project_name_branch.egg-info\\dependency_links.txt'

And then the python process bombs out. This seems very strange to me as it should create the file, copy it and then find it later on! The dependency_link.txt file is empty as you might expect! This is causing my deployments to fail - surely the dependency_links.txt file should be there when it bombs out!

I'm on Windows 64-bit and am running 64-bit versions of the libraries where appropriate, am happy to provide more info, just not sure what would be helpful at this stage!

• Bitbucket: https://bitbucket.org/pypa/setuptools/issue/365

Reproduce the Windows failure by running the shown setup.py sdist --format=gztar command, then inspect the egg_info and sdist steps around dependency_links.txt. Compare the generated path with the destination path in the log; done means the source distribution completes without the missing-file error.