ModuleNotFoundError：没有名为“PyDIP”的模块，尽管它已安装

Question

Trying to work with image recognition, I installed Python with OpenCV, following this tutorial . Later on, I decided to give PyDIP a try, running the commands given on this answer .

The first command just don't work:

>>> import PyDIP as dip
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'PyDIP'

I tried to install it using:

(cv) user@pc:~$ python -m pip install PyDIP
Requirement already satisfied: PyDIP in ./.virtualenvs/cv/lib/python3.7/site-packages (0.1.8)

The location of python and pip also seem correct:

(cv) user@pc:~$ which -a python
/home/user/.virtualenvs/cv/bin/python
/usr/bin/python
/bin/python

(cv) user@pc:~$ which -a pip
/home/user/.virtualenvs/cv/bin/pip
/usr/local/bin/pip

I'm using a Virtual Environment (exactly as in the first link), thus the (cv) on the prompt. There are different Python versions installed, but as I've read, the first one listed with which should be used. If the python and pip executables are on the same folder as the PyDIP package, what's going on?

I'm using Debian 10, python 3.7.3 and pip 20.0.2.

Answer 1

The project has top-level package pydip (not PyDIP ). So import it:

import pydip as dip

AFAIU PyDIP is a different package .

Answer 2

You are trying to install the PyDIP module by installing it with pip, but the Python Package Index says the pydip module on there is an

Adjudication logic engine for Diplomacy board game

To install it you have to build it from source .

Check here for help.