Importing modules from different folder python for unknown path

Question

I have been working on a python project and I am new to it. I have made a small library for my project in which I have several different modules doing different tasks.

For example: I have 5 modules namely add, subtract, multiply, divide and root. I call all these .pyc files into my main.py file and my code runs properly if all of them are in the same folder.

Now, I want to store my main.py at: D:\project\main.py and these 5 .pyc files at : D:\project\Lib\ (In the Lib folder)

I found a solution as to mention the path of the folder Lib into the code but I can not do so as I need to submit the code somewhere and if they try to run this on their PC, it might not import these files.

What would be the possible solution to this?

see about python packages. you need to convert a directory into a package by creating a file __init__.py in it. and then store all your modules and call it like from package.module import something — anekix
– anekix, Commented Jul 11, 2017 at 12:02
also make sure you work with .py files instead of .pyc files. .pyc files will be generated by interprer for its internal purpose — anekix
– anekix, Commented Jul 11, 2017 at 12:17

Oleksii Filonenko · Accepted Answer · 2017-07-11 12:10:23Z

2

Try creating a package.

Use a directory structure like this:

.
+-- main.py
+-- lib
    +-- __init__.py
    +-- add.pyc
    +-- substract.pyc
    +-- ...

Then, in your main.py file, you can import them like this:

from lib import add

2 Comments

anekix Over a year ago

@BrightOne. its not good idea to use .pyc fils directly rather they are generated by the python interpreter

Oleksii Filonenko Over a year ago

@anekix OP used .pyc in the examples, it's not my own decision. Nonetheless, you are right.

anekix · Accepted Answer · 2017-07-11 12:08:00Z

1

Inside D:\project\Lib create an __init__.py file. and put all your modules in D:\project\Lib now lib works as a python package.you dir structure should now look like this:

D:\project\Lib
           |
           +--- __init__.py
           +--- add.py
           +--- sub.py
           +--- multiply.py

Now from any file inside (say for ex main.py) D:\project call any module you want like this.

from Lib.add import something.

final dir structure will roughly look like this.

D:\project
        |
        +-- main.py
        +-- Lib
              |
              +--- __init__.py
              +--- add.py
              +--- sub.py
              +--- multiply.py

answered Jul 11, 2017 at 12:08

anekix

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