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Python3 module not found error after installation with pip3 – CentOS

I have been stuck on a module not found error of python3.
I have a VM on Microsoft Azure, a Centos 7. Then I installed python3 and pip3, and some packages I needed. But there’s one package that I just couldn’t find after I installed it

sudo pip3 install --user stockstats

But whenever i wanted to run a python script using this package, there’s
ModuleNotFoundError: No module named 'stockstats'

What I tried:

pip3 show stockstats

As I really want to see where it was installed. It shows nothing. What it is supposed to do is like this:

Name: openpyxl
Version: 3.0.7
Summary: A Python library to read/write Excel 2010 xlsx/xlsm files
Home-page: https://openpyxl.readthedocs.io
Author: See AUTHORS
Author-email: [email protected]
License: MIT
Location: /usr/local/lib/python3.6/site-packages
…

Then I guess it might be something wrong with the installed path, so I uninstalled the package, and then did

sudo pip3 install stockstats --install-option="--prefix=/usr/local/lib"

(I am just guessing if openpyxl is installed there then stockstats should be there too, as python imported openpyxl successfully)
That didn’t work as well, the error still persists.

*I didn’t use any package manager other than pip3.

** some irregularities occurred when I was trying to use python3(see this post). It was resolved, but I am not sure if the error in this post is related to that.

Any help or hint would be appreciated 😉

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3

Answers


  1. Chosen as BEST ANSWER
    0

    Thanks all for the prompt reply. After Guo Lei’s comment, I tried downloading the tar ball for this package and installing it myself without pip, which eventually told me what exactly happened: a module named int-date, required by stockstats, was not installed in the python library directory. After I installed it in the proper directory, the issue is resolved.

    As Danila Vershinin and phd had pointed out, I really shouldn’t run pip as root, and that is the source of issue(curiously, however, that only one particular module required by stockstats is installed in /root/.local/lib/. All others are in the right place, maybe I added the prefix flag without remembering it...?)

    Still, I am not sure, I ran pip using sudo because I received permission denied errors repeatedly — so should I use something like sudo --user? Or sth else?


  2. 0

    for maybe some errors in installing pip.

    • reinstall python.

    • check that the module name is correctly typed

    • install stockstats in pip like "pip install stockstats" (getten from pypi.com)

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  3. 0

    This works for me.

    pip install -i https://pypi.tuna.tsinghua.edu.cn/simple stockstats

    or

    pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
pip install stockstats
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