Problem importing matplotlib.pyplot and numpy in python2.7

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I face problem while importing matplotlib.pyplot and numpy. I am using python2.7 for psse33 so that I can use dyntools. Tried installing using pip but error pops up. Help please

So I want to plot multiple channel out files so that multiple cases for different channels can be seen as a plot. I use python2.7 for psse33 to utilize dyntools module. But I cannot use numpy and matplotlib as this aren't already installed in pss33 packages. I tried to install using pip install numpy command but error pops up.

I tried using python39 since numpy and matplotlib is already installed. But I cannot proceed further as error is there "dyntools - bad magic number"