Under ubuntu18, when I use python3 somepy.py I got error: no module named numpy Please refer to screen picture as below:

I searched a lot but didn't get out.

The command I'm using is "python3". I linked my /usr/bin/python3 to /usr/bin/python3.8

I also linked both /usr/bin/pip and /usr/bin/pip3 to using the same pip3.8 path as shown in the picture.

Then I use pip3 install numpy=1.20.1 and displayed already installed.

But "no module named numpy" still exists. I don't know why. Is there any help?

Thank for the quick replies. I'll add 3 more pictures: This picture shows I had used pip install -U numpy and also shows how I run the python script

This picture: I tried with a python3 -m pip install numpy. It's strange the install can go on. I didn't understand why behave differently compared to before.

These 2 pictures shows python3 -m pip install numpy still have fatal error. Also I didn't understand this error message Things seem to go more complicated to my dismay. But I'll search for this new error.

CodePudding user response：

Use this command to install numpy.

python3 -m pip install numpy

CodePudding user response：

I installed numpy library with these commands

pip install -U numpy
pip3 install -U numpy