Questions tagged [python-3.x]
DO NOT USE UNLESS YOUR QUESTION IS FOR PYTHON 3 ONLY. Always use alongside the standard [python] tag.
python-3.x
107,883
questions with no upvoted or accepted answers
26
votes
2
answers
2k
views
Flask unable to read Authorization header on ElasticBeanstalk
I have deployed a Flask app to AWS ElasticBeanstalk. The app is unable to read the 'Authorization' header in requests.
Error log reports:
KeyError: 'HTTP_AUTHORIZATION'
Error traced to:
@application....
- 57.8k
18
votes
6
answers
16k
views
Install from pipfile using pipenv install gives error
I have a project where I'm trying to install from the pipfile using pipenv install. I get som error when installing. Before i describe the error, this is what I did:
Reinstall pipenv
Reinstall Python ...
- 2,088
17
votes
0
answers
2k
views
Trouble finding memory leak (tracemalloc/objgraph/gc not helping)
I have a network process that communicates over TCP collecting data, deserialising it and finally storing parts in a LevelDB key/value store (via Plyvel).
Slowly over time it will consume all ...
- 390
16
votes
2
answers
8k
views
'ImportError: No module named ...' when trying to import pyx file to Jupyter
I have this file em.pyx in the same folder as the Jupyter notebook where I try to import it but it is giving me the error
ImportError: No module named em
I've tried adding
import sys
sys.path....
- 295
15
votes
1
answer
11k
views
Ignore pkg_resources.ContextualVersionConflict or ResolutionImpossible
I have built a python module which installs kwikapi==0.4.5 and requests==2.22.0. But kwikapi has requests==2.18.4.
Now when I install and run my package, I am getting error pkg_resources....
- 694
15
votes
6
answers
6k
views
Unable to get double click event in OpenCV for python
OpenCV with python(MAC OS X EL Capitan)
I'm creating a demo project to track mouse events in openCV. using standard mouseCallback from openCV.
following is my code for the same.
drawWithMouse.py
#!/...
15
votes
2
answers
18k
views
MaybeEncodingError: Error sending result: '<multiprocessing.pool.ExceptionWithTraceback object at 0x0000018F09F334A8>'
I am getting the below error when I am downloading files using multiprocessing. I am downloading Wikipedia page views and they have it by hour so it might include a lot of downloading.
Any ...
- 1,310
13
votes
0
answers
997
views
Will async-generators that don't have 'await' in its finally-block be immediately closed when there is no reference to it?
According to this blog, normal generators will be immediately closed when there is no reference to it. (CPython exclusive though). My question is "Does this apply to async-generators that don't ...
- 808
12
votes
0
answers
3k
views
How to configure Celery to run as systemd service with a Django application served by Gunicorn?
I followed the official Celery documentation regarding how to configure Celery to work with Django (python 3) and RabbitMQ. I already have a systemd service to start my Django Application using ...
- 1,025
12
votes
1
answer
3k
views
Jinja2 template in Python 3 renders bytes with "b" prefix and quotes
I'm upgrading a Flask app from python2 to python3,
Jinja2 now renders bytes with trailing b and single quotes, e.g. b'a123' while I need them rendered as a123.
This happens with all urlsafe strings ...
- 12.2k
12
votes
1
answer
2k
views
Does multiprocessing.shared_memory require locking?
I'm learning about shared memory in Python, especially the python 3.8 module multiprocessing.shared_memory. I see no mention of locking in the documentation. (Although the parent module, ...
- 165
11
votes
0
answers
7k
views
Python 3.8 concurrent.futures "OSError: handle is closed"
I have Python 3.8 and cannot upgrade (I have dependencies that only work with Python 3.8), so this SO post does not answer my question. How do I prevent the OSError: handle is closed error? This ...
- 5,267
11
votes
0
answers
15k
views
FastAPI workers timeout
Some background:
I am not sure if the following details are required to reply to my question but providing them just for reference. I am developing a FastAPI POST endpoint which does the following:
...
- 5,745
11
votes
1
answer
2k
views
Can't pickle <class 'MemoryError'>: it's not the same object as builtins.MemoryError
I am using multiproccessing pool map in Python 3.7 and I am getting error like below with Docker container.
multiprocessing.pool.MaybeEncoding Error: Error sending result: '<multiprocessing.pool....
- 121
11
votes
0
answers
4k
views
Plotly displaying sad 'fail' face instead of output
I'm using plotly==4.5.1 in a jupyter==1.0.0 notebook, python==3.7.4.
The same piece of code which previous showed this:
Is now showing this, without having had any modifications:
Does anyone have ...
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