ModuleNotFoundError：使用“pip install numpy”后没有名为“numpy”的模块

Question

I tried installing numpy using the command 'pip install numpy' and ran 'import numpy' but I received the error ModuleNotFoundError: No module named 'numpy' when I tried to re-run the code. After reading similar questions on SO, I ran pip3 install numpy , but since i already installed it, I received the message Requirement already satisfied .

NOTE: I have read other similar questions on SO, but none of them solve my problem.

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Possible solution for future readers:

Like @Sampath mentioned in his answer, I had two versions of python installed. To solve the issue, I manually deleted all the installation files of the older version.

Answer 1

Welcome to SO!

1. It is likely that there are 2 python versions(Python2.X and Python3.X) are installed in your system.
2. pip is likely pointing to your Python2.X and so if you want to used libraries installed in this version ===> use python to run
3. pip3 is pointing to your Python3.X, so use Python3 in your terminal to use this.

Note:

• To know installed libraries in your python2 use pip freeze or pip3 freeze for Python3
• In case, if you are getting error for Python3 as not then this is like to be system path issues.

If you are still having trouble, you learn more about Anaconda-Python which has a curated list of steps and guidelines that are easy for beginners too. Hope this helps!