dbshell_plus does not use virtualenv mycli and pygments, defaults to system version

[jontsai]

In my Django application, when I launch dbshell_plus, it seems to use the system mycli and not the one in virtualenv. When I uninstall the system mycli, a regular mysql client is started.

Additionally, dbshell_plus does not respect the mycli and Pygments in the virtualenv.

$ venv/bin/python manage.py dbshell_plus
Traceback (most recent call last):
  File "/usr/local/bin/mycli", line 7, in <module>
    from mycli.main import cli
  File "/usr/local/lib/python2.7/dist-packages/mycli/main.py", line 44, in <module>
    from .lexer import MyCliLexer
  File "/usr/local/lib/python2.7/dist-packages/mycli/lexer.py", line 1, in <module>
    from pygments.lexer import inherit
ImportError: cannot import name inherit

The issue is here:

django-dbshell-plus/lib/django_dbshell_plus/management/commands/dbshell_plus.py

Line 67 in ff2e810

subprocess.call(args)

The subprocess.call is invoked with args, which naively just uses pgcli or mycli, but does not detect whether it should use the path in virtualenv or not.