What is pip install -q -e. in this Travis-CI building tutorial?

Question

I am following this tutorial for testing a Django project using Travis-CI. In this example script:

env:
  - DJANGO=1.2.7
  - DJANGO=1.3.1
  - DJANGO=1.4
install:
  - pip install -q Django==$DJANGO --use-mirrors
  - pip install -q -e . --use-mirrors

What exactly does it do pip install -q -e .? The -q flag is missing, and I'm not sure what this means for -ein the documentation:

[- e flag]: set the project in editable mode (ie setuptools "development mode") from the local project path or VCS URL.

Answer 1

-q means quiet.

-e . , flask ~/flask, pip install -e ~/flask ~/flask site-packages.