I have a python project with multiple classes and files.
This is my folder structure:
main.py
directory
|_ parent_class.py
|_sub_directory_1
|_child_class_1.py
|_sub_directory_2
|_child_class_2.py
I am using the same imports like pandas and numpy e.g. in all files. Is there a way to import those a single time so my code is cleaner? Many Thanks in advance.
There is a way to "refacto" your imports inside a parent module and then import * from parent_module.
However I would not recommend such practice as the more your project grows the more likely you are to produce circular imports !
I would say that the best practice is to only import your packages/modules where you really need them. If you want a cleaner code base, I can suggest you tools such as isort that will automatically format your imports !
You can't do this unless there is a single file which is imported by all of the other files. And even in that case, you either have to use from <file> import * (which is not a good practice), or use <file>.<module> every time you want to reference one of those modules, which just makes things unnecessarily long.
Therefore, doing this is not usually a good idea...
...However, if there are a lot of imports shared by all files and you are sure that doing this would make your code much clearer, you could consider creating a new file specifically for this purpose.
For example, you could add a file called common_imports at the top level, put all the imports in there, and just use from common_imports import * at the start of each file.
So:
common_imports.py
import numpy as np
import pandas as pd
...
...
Other files
from common_imports import *
... # Other imports
...
...