[Distutils] setup_requires and install_requires

[Joshua Boverhof]

I mentioned this a while back.

If one specifies the same package in setup_requires and  
install_requires, it will not be installed.  Here is a simple script  
that demonstrates this behavior.

You could also dump setup_requires into the setup call and see the  
same behavior.

-josh



$ cat setup.py
import os, ez_setup
ez_setup.use_setuptools()
from setuptools import setup, find_packages
from setuptools.dist import Distribution

if not os.path.isdir('Dummy'):
     os.mkdir('Dummy')
     open('Dummy/__init__.py', 'w').write('# Dummy')

# Indirection so that setuptools grabs "setup_requires" dependencies
Distribution(
     dict(setup_requires="PasteScript >= 0.5",)
)
setup(name="Dummy",
       packages=find_packages(),
       install_requires=[
          "PasteScript >= 0.5",
         "TurboKid >= 0.9.3",
       ],
)
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