Lecture1 Activity 4

Install python module pygrace

Hi,

I have an old code that needs the python/2.7.3 module to work. Please make sure you have pygrace installed.

Chris T.A.

• Why does an old code need an old version of python?
  • About python modules
  • The dependency / backward [in]compatibility problem of python
• About python environment modules

Just load the module and see if you can import pygrace.

module load python/2.7.3
ipython
import pygrace

You encounter "ImportError: No module named pygrace". Pygrace is not installed. Listing all modules installed for python/2.7.3 and search for pygrace should return nothing.

pip freeze | grep pygrace

Install pygrace with pip. Specify the --user option to do a user local install. This does not write file to system location such as /usr/lib, therefore does not require root privilege.

pip install --user pygrace

Confirm

pip freeze | grep pygrace