更改setuptools下载.egg文件的位置
我刚开始学Python，但在用setuptools安装项目的.eegg文件时，它们都被放在了当前工作目录（项目的顶层目录）里。这让目录变得很乱，也很难把它们和项目的其他部分分开移动。
有没有办法让.eegg文件下载到一个子目录里呢？
编辑 | @Kos建议使用virtualenv。奇怪的是，这似乎还是把.eegg目录下载到了虚拟环境之外。
(.virtualenv)default@232f7f34a1dd:/projects/python/tmp/sql$ which python
/projects/python/tmp/sql/.virtualenv/bin/python
running test)default@232f7f34a1dd:/projects/python/tmp/sql$ python setup.py test
Searching for nose
Reading https://pypi.python.org/simple/nose/
Best match: nose 1.3.3
Downloading https://pypi.python.org/packages/source/n/nose/nose-1.3.3.tar.gz#md5=42776061bf5206670cb819176dc78654
Processing nose-1.3.3.tar.gz
Writing /tmp/easy_install-0eX3mf/nose-1.3.3/setup.cfg
Running nose-1.3.3/setup.py -q bdist_egg --dist-dir /tmp/easy_install-0eX3mf/nose-1.3.3/egg-dist-tmp-MJ1xDk
no previously-included directories found matching 'doc/.build'
Installed /projects/python/tmp/sql/nose-1.3.3-py2.7.egg
(.virtualenv)default@232f7f34a1dd:/projects/python/tmp/sql$
注意“Installed /projects/python/tmp/sql/nose-1.3.3-py2.7.egg”吗？它应该在“Installed /projects/python/tmp/sql/.virtualenv/.....”的某个地方。