Help with Python circular error

[Arak Rachael]

On Wednesday, 16 June 2021 at 10:32:50 UTC+2, Arak Rachael wrote:
> On Tuesday, 15 June 2021 at 19:30:28 UTC+2, Chris Angelico wrote: 
> > On Wed, Jun 16, 2021 at 3:17 AM MRAB <pyt... at mrabarnett.plus.com> wrote: 
> > > 
> > > On 2021-06-15 17:49, Chris Angelico wrote: 
> > > > On Wed, Jun 16, 2021 at 2:45 AM Arak Rachael <arakelt... at gmail.com> wrote: 
> > > >> 
> > > >> Hi to everyone, 
> > > >> 
> > > >> I am having a problem with this error, I created a package and uploaded it to Test PyPi, but I can not get it to work, can someone help me please? 
> > > >> 
> > > >> https://test.pypi.org/manage/project/videotesting/releases/' 
> > > >> 
> > > >> The error: 
> > > >> 
> > > >> /home/user/anaconda3/envs/testing/bin/python /home/user/devel/python.assignments/topgis-viz/topgis-test.py 
> > > >> Traceback (most recent call last): 
> > > >> File "/home/user/devel/python.assignments/topgis-viz/topgis-test.py", line 10, in <module> 
> > > >> from videotesting import downsample_and_save_npz 
> > > >> File "/home/user/anaconda3/envs/testing/lib/python3.8/site-packages/videotesting/__init__.py", line 7, in <module> 
> > > >> from videotesting import extract_video 
> > > >> ImportError: cannot import name 'extract_video' from partially initialized module 'videotesting' (most likely due to a circular import) (/home/user/anaconda3/envs/testing/lib/python3.8/site-packages/videotesting/__init__.py) 
> > > >> 
> > > > 
> > > > Hard to diagnose without the source code, but I'm thinking that your 
> > > > __init__.py is probably trying to import from elsewhere in the 
> > > > package? If so, try "from . import extract_video" instead. 
> > > > 
> > > Well, the traceback says that videotesting/__init__.py has: 
> > > from videotesting import extract_video 
> > > 
> > > so it is trying to import from itself during initialisation. 
> > Yes, but what we can't tell is what the intention is. It could be 
> > trying to import from its own package (in which case my suggestion 
> > would be correct), or it could be trying to import from something 
> > completely different (in which case the solution is to rename 
> > something to avoid the conflict). Or it could be something else 
> > entirely. 
> > 
> > ChrisA
> Thanks all! 
> 
> 
> I have __init__.py in the create and uploaded package and I have __init_.py in the new package, which is not ready yet. Its 2 projects, but I am using project 1 into project 2. 
> 
> Here is the first package as a .zip 
> https://www.dropbox.com/s/lkz0qf4mq9afpaz/video-testing-package1.zip?dl=0 
> 
> Here is the second project in which I try to use the first one: 
> https://www.dropbox.com/s/sxjpip23619fven/topgis-viz-package2.zip?dl=0

The problems were 2:

1. This has to be in __init__.py:

import pipreqs
import cv2
import numpy
import os
import PIL
#import videotesting
from .videotest import extract_video
from .videotest import resize_and_grayscale
from .videotest import add_progress_bar
from .videotest import downsample_and_save_npz

the dots before videotest are critical

2. The module is named videotest as the file videotest.py, not videotesting