导入模块无法解析

Question

I've successfully installed "PyPDF2" module and checked it using the command 'pip list'. yet when I try to import it i receive this message: '''Import "PyPDF2" could not be resolved'''

Answer 1

The version of python that you installed the module in and the version that your IDE is using might be different check what version you installed it in by typing

pip -VV

in your terminal and check in what version your IDE is using (for vs code its usually shown at the bottom left or can be seen in the command pallete by typing Python: Select Interpreter )

another reason this could happen is if you are using an IDE like pycharm which by default creates a virtual environment for each project in which case you would need to either install your module from pycharm's terminal or activate the virtual environment and then install in it (docs here show how to https://docs.python.org/3/tutorial/venv.html )

Answer 2

1. Make sure you have installed PyPDF2

pip install PyPDF2

2. Select the correct interpreter

Click

Answer 3

First of all, please make sure that you are using the correct environment and python interpreter. If multiple python versions exist on your computer, use the command to install the PyPDF2 package under the version you need. For example python3:

py -3 -m pip install PyPDF2

Another possible reason: Paths are not imported correctly. Please add the following commands in the setting.json file:

"python.analysis.extraPaths":[
    // The folder path where the custom module is located, and multiple paths can be added (the following is just an example)
    // absolute path
    "c:\\workspace\\pythontest\\.venv\\lib\\site-packages",
    "E:\\myfolder\\homework\\one\\Person_reID_baseline_pytorch-master",
    // relative path
    "./src",
    "./modules" 
]