py.test: ImportError: No module named mysql

Question

I have problems running py.test over packages that imports mysql. The package mysql was installed with pip in a virtualenv.

# test_mysql.py

import mysql

def foo():
  pass

I can run without any problem python test_mysql.py, but when I execute py.test test_mysql.py I get:

>   import mysql
E   ImportError: No module named mysql

Any idea what's the problem?

Answer 1

It seems like you're using system-wide version of py.test which use non-virtualenv-version of python. (In which, mysql package is not installed).

Install py.test inside the virtualenv, then your problem will be solved.

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SIDE NOTE

To make sure you're using the newly-installed py.test, clear the command path cache used by shell.

For example, if you use bash, issue the following command:

hash -r