egg option does not honour --no-deps

[k4ml]

If I install package using --egg option with --no-deps, all dependencies still being installed. For example, Fabric require pycrypto and paramiko.

pip install --no-deps Fabric
Downloading/unpacking Fabric
  Running setup.py egg_info for package Fabric

    warning: no previously-included files matching '*' found under directory 'docs/_build'
    warning: no previously-included files matching '*.pyc' found under directory 'tests'
    warning: no previously-included files matching '*.pyo' found under directory 'tests'
Installing collected packages: Fabric
  Running setup.py install for Fabric

    warning: no previously-included files matching '*' found under directory 'docs/_build'
    warning: no previously-included files matching '*.pyc' found under directory 'tests'
    warning: no previously-included files matching '*.pyo' found under directory 'tests'
    Installing fab script to /home/kamal/python/test_pip/.env/bin

Using --egg option:-

./bin/pip install --no-deps --egg Fabric
Downloading/unpacking Fabric
  Using download cache from /home/kamal/.pip/cache/https%3A%2F%2Fpypi.python.org%2Fpackages%2Fsource%2FF%2FFabric%2FFabric-1.6.1.tar.gz
  Running setup.py egg_info for package Fabric

    warning: no previously-included files matching '*' found under directory 'docs/_build'
    warning: no previously-included files matching '*.pyc' found under directory 'tests'
    warning: no previously-included files matching '*.pyo' found under directory 'tests'
Installing collected packages: Fabric
  Running setup.py install for Fabric

    warning: no previously-included files matching '*' found under directory 'docs/_build'
    warning: no previously-included files matching '*.pyc' found under directory 'tests'
    warning: no previously-included files matching '*.pyo' found under directory 'tests'
    installing library code to build/bdist.linux-i686/egg
    zip_safe flag not set; analyzing archive contents...
    fabric.version: module references __file__
    removing 'build/bdist.linux-i686/egg' (and everything under it)
    Processing Fabric-1.6.1-py2.7.egg
    Extracting Fabric-1.6.1-py2.7.egg to /home/kamal/python/test_pip/.env/lib/python2.7/site-packages
    Adding Fabric 1.6.1 to easy-install.pth file
    Installing fab script to /home/kamal/python/test_pip/.env/bin

    Installed /home/kamal/python/test_pip/.env/lib/python2.7/site-packages/Fabric-1.6.1-py2.7.egg
    Processing dependencies for Fabric==1.6.1
    Searching for paramiko>=1.10.0
    Reading https://pypi.python.org/simple/paramiko/
    Best match: paramiko 1.10.1
    Downloading https://pypi.python.org/packages/source/p/paramiko/paramiko-1.10.1.tar.gz#md5=4ba105e2d8535496fd633889396b20b7

After digging further, this is turn out to be setuptools behavior. If invoked with --single-version-externally-managed as in pip default behavior, only the package get installed, leaving up to pip to manage the dependencies. I can't find any option to disable dependencies tracking when invoking setuptools without --single-version-externally-managed. Anyone has any idea or I'm on a dead end now ?

[dstufft]

This issue is quite old, but it's unfortunately not something pip can really fix. --egg bypasses pip's normal dependency solver.