systempkgs = true breaks pyvenv

[Amar-Chaudhari]

Setting systempkgs => true, in pyvenv gives the following error -

Could not evaluate: Could not find command '/opt/jupyterhubenv_p34/bin/pip'

Virtual Env Dir:

 ls -l /opt/jupyterhubenv_p34/bin/
total 12
-rw-r--r--. 1 root root 2164 Sep 15 18:30 activate
-rw-r--r--. 1 root root 1280 Sep 15 18:30 activate.csh
-rw-r--r--. 1 root root 2416 Sep 15 18:30 activate.fish
lrwxrwxrwx. 1 root root    9 Sep 15 18:30 python -> python3.4
lrwxrwxrwx. 1 root root    9 Sep 15 18:30 python3 -> python3.4
lrwxrwxrwx. 1 root root   18 Sep 15 18:30 python3.4 -> /usr/bin/python3.4

Also default pip in the virtual env seems to be python2.7 :

(jupyterhubenv_p34) [vagrant@amar-test-centos7 ~]$ pip -V   
pip 7.1.0 from /usr/lib/python2.7/site-packages (python 2.7)

[vthyng]

I suspect this is because the system packages are python 2.7 and your pyvenv is 3.4. You don't want to be able to mix those versions.