Spaces in path name may break pip requirements installation

[el-tocino]

How to submit an Issue to a Mycroft repository

Extracted from #1475

Be clear about the software, hardware and version you are running

• I'm running a desktop/git install
• With the current dev branch
• With the standard Wake Word

Try to provide steps that we can use to replicate the Issue

1. change into a directory that has spaces in the name.
2. clone mycroft-core somewhere under it.
3. run dev_setup.sh from within mycroft-core
4. note the errors that occur from pip installing requirements.txt

Be as specific as possible about the expected condition, and the deviation from expected condition.

• When you run this from a path that does not have spaces, it works as expected. When run from a path containing spaces, it outputs the error, and queries the user to continue.

Provide log files or other output to help us see the error

(I'm using "/opt/test path" as my test directory)

Adding pip 9.0.1 to easy-install.pth file
Installing pip3.5 script to /opt/test path/mycroft-core/.venv/bin
Installing pip3 script to /opt/test path/mycroft-core/.venv/bin
Installing pip script to /opt/test path/mycroft-core/.venv/bin

Installed /opt/test path/mycroft-core/.venv/lib/python3.5/site-packages/pip-9.0.1-py3.5.egg
Processing dependencies for pip==9.0.1
Finished processing dependencies for pip==9.0.1
grep: /opt/test: No such file or directory
grep: path/mycroft-core/.venv/lib/python3.5/site-packages/_virtualenv_path_extensions.pth: No such file or directory
Adding mycroft-core to virtualenv path
./dev_setup.sh: /opt/test path/mycroft-core/.venv/bin/pip: "/opt/test: bad interpreter: No such file or directory
Warning: Failed to install all requirements. Continue? y/N
y./dev_setup.sh: /opt/test path/mycroft-core/.venv/bin/pip: "/opt/test: bad interpreter: No such file or directory
Warning test requirements wasn't installed, Note: normal operation should still work fine...

[el-tocino]

Related, and closing this. pypa/virtualenv#53