ImportError: No module named psutil while using robotframework

Question

I'm using robotframework for automation. I'm trying to use a method from my python library which needs psutil. The problem is when I execute from the robotframwork it gives error ImportError: No module named psutil but when I execute it with Pycharm I don't get any error. I have installed psutil using pip install psutil . I searched a lot on web but couldn't find any reason for this issue.

Solution 1

My experience with this error was that I had multiple versions of python installed on my ubuntu server 16.04LTS.

My PATH resolved to /usr/local/python -> python 2.7.10 meaning typing python into the commandline I got 2.7.10, but the standard path /usr/bin/python linked to python 2.7.12. The psutil module and others were only installed for version 2.7.10

My resolution was to re-symlink /usr/bin/python to point to my 2.7.10 version:

# Find which python your PATH is pointing at and the version
$ which python

# Returns
/usr/local/bin/python

$ /usr/local/bin/python --version

# Returns
Python 2.7.10

$ /usr/bin/python --version

# Returns
Python 2.7.12

Unlink and relink to correct python version in /usr/bin/python $ cd /usr/bin $ sudo unlink python $ sudo ln -s /usr/local/bin/python python

# check python version points correctly
$ /usr/bin/python --version

# Now correctly returns 
Python 2.7.10

P.s. Bear in mind it's still worth checking all your modules are correctly installed now that your environment is pointing at the 1 python version

Solution 2

Could you try setting the PYTHONPATH in your environment or by passing it as an option.

This person had a different issue, but the fix I think will be the same:

setup pythonpath before starting test suite

Cheers,

K