# Pastebin 70kutYTy
⌂107% [:~/src/tmp/161047] [161047] master* ± pip freeze
bar==2.0
⌂107% [:~/src/tmp/161047] [161047] master* ± pip install foo
Collecting foo
  Downloading http://localhost:3141/james/161047/+f/54b/e213f184d756a/foo-0.3.tar.gz
Collecting bar>=2.1 (from foo)
  Downloading http://localhost:3141/james/161047/+f/3ca/d097f50d6ecb5/bar-2.1.tar.gz
Installing collected packages: bar, foo
  Found existing installation: bar 2.0
    Uninstalling bar-2.0:
      Successfully uninstalled bar-2.0
  Running setup.py install for bar
  Running setup.py install for foo
Successfully installed bar-2.1 foo-0.3
⌂106% [:~/src/tmp/161047] [161047] master* ±