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+--- Thread: Help wanted with python imports (/thread-33226.html)
Help wanted with python imports - petros21 - Apr-07-2021
Hello!
May i start with saying that the import-module-package system of python is the most abominable feature that I have ever encountered in any language ever.
With that out of the way, i have a project in pycharm with the following structure (underscores to signify tabs...):
CodeStats
__src
_____ __init__.py
_____ code_stats.py
_____ Extension.py
_____ utils.py
__tests
_____ __init__.py
_____ test_one.py
Also in my src folder i have a .bat file named py_run.bat that allows me to run the program from anywhere like this:
py_run code_stats.py
in order for my imports to work I am doing them like this (for example inside utils.py):
from Extension import Extension (file Extension.py has a class named Extension)
and this way the project runs from pycharm and from cmd too
But i made pycharm create a test for me (test_one.py):
from unittest import TestCase
class Test(TestCase):
def test_contains(self):
from src import utils
line = ["one", " ", "class", "//"]
self.assertTrue(utils.contains(line, "one"))When i run that i get an error on all my imports that are like that: "from Extension import Extension"this error: ModuleNotFoundError: No module named 'Extension'
if I change the import to "src.Extension import Extension"
the test runs fine, the program from pycharm runs fine but from the cmd it says
ModuleNotFoundError: No module named 'src'
What is wrong with this language? How can it be so stupid and unintuitive for something so simple to work?
How am I supposed to structure my imports?
Thanks in advance.
RE: Help wanted with python imports - Larz60+ - Apr-07-2021
Quote:May i start with saying that the import-module-package system of python is the most abominable feature that I have ever encountered in any language ever.
You should have seen it before revised by Brett Cannon. Bottom line ... it works and I don't think anyone wants to tackle a complete rewrite. If interested in how it actually works, see: https://www.youtube.com/watch?v=Nsg886UOahw
RE: Help wanted with python imports - jefsummers - Apr-07-2021
And btw - bad idea to import from within a function. The import will occur then every time the function is called, causing a dismal drain on your performance.
RE: Help wanted with python imports - snippsat - Apr-07-2021
(Apr-07-2021, 03:08 PM)petros21 Wrote: What is wrong with this language? How can it be so stupid and unintuitive for something so simple to work?It can be a confusing at start before understand how it works.
How am I supposed to structure my imports?
Here are some post i done before with full examples,
try to look at it or better run some to understand what going on.
Full example of making a package
Simpler version
Another package
In tutorial goes trough a lot Packaging/Modules--Wheel--pip--setup.py--Freeze
There is a Repo later in post Packaging Tutorial which is easy to clone an run.