How to test my code

[Subhadeep Paul]

I want to run my own version of the lti.py program file and see if it passes all the tests previously present in test_lti.py . But when I run the test_lti.py file, it takes the sympy module from the python interpreter installed on my computer. 

Can someone solve this issue or forward some links?

I use VS code with Git bash.

[gu...@uwosh.edu]

This sounds as if it may be an issue with switching GIT branches. Are you modifying the file in a GIT branch or making a whole new file? Things should work if you modify the original file on a branch and run the tests on the branch.