Questions tagged [python]
Python is a dynamically typed, multi-purpose programming language. It is designed to be quick to learn, understand, and use, and enforces a clean and uniform syntax. Note that Python 2 reached end-of-life on January 1st, 2020. For version-specific Python questions, add the version tag (e.g. [python-3.x] or [python-3.9]). When using a Python variant (e.g. Jython, PyPy) or library (e.g. Pandas, NumPy), please include it in the tags.
python
445
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Calling module from jupyter notebook inside of poetry project reults in 'No module named' error
I'm working on a module with poetry with a directory structure like
./
/my_module
(module files)
/tests
test_thing.py
/jupyter
demo.ipynb
In the test files and jupyter ...
- 16k
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0
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5
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Python seaborn kdeplot - how to use background image
I have been recording the xy cordinates of the ball bounce location on a tennis serve. I am just using this data to play around with different visualisations, and keen to try a heatmap using seaborn (...
- 3
0
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0
answers
6
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TypeError: 'NoneType' object is not subscriptable while fetching information for rejected reason from jira
for issue in issues:
fields = issue['fields']
results.append({
'key': issue['key'],
'summary': fields['summary'],
'description': fields['description'],
'...
- 11
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answers
6
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removal of lines in an image using Python
I am trying to use Python and cv2, numpy, skimage, etc to remove a 'shadow line' from a black and white image if one exists in the image. Essentially my image can have 1 or 2 curved lines like the ...
- 13
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6
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Using pymongo installed via virtualenv and Ansible returns an error
Since it's good practice to install pip modules in virtual environment, I have the following task in place:
- name: Install python packages
ansible.builtin.pip:
name:
- pymongo
...
- 329
0
votes
0
answers
4
views
Getting NAN in Tensorflow weights and biases. How to troubeshoot?
I have input data (x,y,v) each with the shape of (200,10000). I.e. I have 200 samples where x,y and v are of size (10000,).
The code basically predicts velocity by getting x and y as 1D array.
I ...
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0
answers
14
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What to do after cross validation?
After using cross-validation to see how a custom predictive function performs on unseen data, I applied to function to the original dataset, and the performance (based on coefficient of determination) ...
- 1
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0
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4
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Unet from segmentation_models_pytorch stalling in training
I have been following a tutorial on training a segmentation model on a custom dataset, but it refuses to make any progrees in training the model.
This is my model setup
import ...
- 13
0
votes
1
answer
15
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assign rank and maintain sequence across duplicates
I'm assigning an incremental rank based on a value, but need to assign the same rank to duplicate values and maintain the overall sequence.
Instead of this:
Value
Rank
400
1
500
2
175
3
250
4
...
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0
answers
7
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Python async_playwright
Ich schreibe ein Programm was von der ilovemusic Website die Streams abspielen soll. Das funktioniert auch. Nur das Problem ist wenn ich die Scraper Klasse in der main.py aufrufe über scraper_task = ...
- 1
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12
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auto-py-to-exe expected str, bytes or os.PathLike object, not NoneType
I'm using auto-py-to-exe to convert my django project in an exe file but I couldn´t:
Traceback (most recent call last): File
"C:\Users\gerar\AppData\Local\Programs\Python\Python312\Lib\site-...
- 1
-1
votes
0
answers
10
views
pickle serialization not persisting after closing program
Ive made a program to track my barbell lifts. The code I've shown below is opening up a serialized pickle dictionary called users, and if users is empty it prompts the user to create a profile.
import ...
- 1
0
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0
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16
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What is the most efficient way to multiprocess over a very large dataframe?
I have a large Dataframe that I need to do a lot of matching operations over, and in the past have always used the below method for doing it. However, the Dataframe that I am currently attempting to ...
- 23
0
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0
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8
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hosting a flask app in AWS lambda with API requests from teams bot
I am trying to host a teams bot on AWS, the message endpoint is set to the api gateway from the lambda function. The goal is for it to just send "message" back, however upon testing it gives ...
0
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0
answers
12
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Python: trying to access instance attributes in self.__setattr__
I was trying to create a dataclass with shorter aliases for longer fields. Since I wanted to be able to add new fields (with long and short names) without having to write a @property decorated "...
- 498
4
votes
2
answers
28
views
How do I categorize projects in a dataframe according to its title?
I have a dataframe where I want to categorize energy releated projects in 4 different topics according to its title.
For that I want to use pre-defined keywords to identify which topic the project ...
0
votes
1
answer
16
views
Why does my Pydantic model contain an extra attribute when popupated from an object with extra=ignore?
The title says it all:
Why does my Pydantic model contain an extra attribute when popupated from an object with extra=ignore?
from pydantic import BaseModel, ConfigDict
# pydantic 2.4.2
class Test(...
- 6,963
2
votes
1
answer
27
views
for j in os.system("ls *.out") Doesn't iterate. Changing the name of files depending on extension
I am trying to write a script that will help me run a model several times changing the input of one value of the input files. The model over writes the output files so I need to rename the outputs ...
0
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0
answers
30
views
Column value lookup based on multiple conditions and wild cards
I have a dataframe:
df = pl.DataFrame({'Col1': ['a', 'a', 'a', 'b', 'b', 'b', 'b', 'aa', 'aa', 'aa']
, 'Col2': ['c', 'd', 'e', 'c', 'd', 'e', 'f', 'd', 'e', 'f']
,...
- 15
2
votes
1
answer
17
views
Attempting to put data from database onto dashboard in Django
So I am following this guide: https://www.youtube.com/watch?v=_sWgionzDoM and am at around 55 mins so far
I have the login stuff all working however I am unable to get the dashboard to show my data ...
- 23
0
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0
answers
17
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Matplotlib contour line without drawing
I am trying to compute the contour lines of a numpy NDarray.
However, I do not want to plot them but simply to do some analysis with the obtained lines.
So far I managed to get a very similar result ...
1
vote
1
answer
16
views
Maximizing sum of signed numbers by not skipping more than one consecutive value: DP goes wrong
I am trying to solve this code challenge:
A user maintains a list of negative and positive ratings for movies in a collection. The user wants to choose some subsequence of movies from the collection ...
- 11
1
vote
1
answer
8
views
How to add trigger for run dag into another dag (with decorators) in Airflow?
I got 2 dags in same dags folder:
dag_update_database (dag_update_database.py)
dag_add_client_loyalty (dag_updade_clients_loyalty.py)
I need run second dag right after successfully run first dag.
I'...
- 327
0
votes
0
answers
11
views
Can't get form elements to align properly using pymupdf and reportlab
I'm writing a program that takes form files and turns them into interactive PDF forms by using markers to locate and draw form elements.
I've gotten my radio buttons to align on the page properly but ...
0
votes
0
answers
17
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Python griddata() and Matlab griddata(): different results at some grid points
While converting some (pretty big physics) Matlab code to Python, I have stumbled upon this situation. Python/Scipy's griddata() function gives different results than Matlab's counterpart griddata() ...
- 1
1
vote
1
answer
21
views
TypeError: the first argument must be callable - self.job_func = functools.partial(job_func, *args, **kwargs)
I seem to be experiencing an issue with the following Python Scheduler tasks. I have the below code which has a function to refresh all workbooks in a set bunch of directories. I have attempted to ...
- 235
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0
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12
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How To Register Model For Admin Page in Core App?
I defined a model (File) in core app(uploader) and tried to register it for admin page but didnt work.
then i tried adding core apps name to installed_apps in setting . after that admin page shows ...
- 1
2
votes
0
answers
6
views
Method `new_page` of `BrowserContext` doesn`t work as expected in `Playwright`
I use playwright with pytest. Here are content of my coftest.py file and file with tests test_keplr.py. For some reason, method new_page works as expected in fixture context_use_args_async, but fails ...
- 74
-2
votes
1
answer
18
views
time.perf_counter() or time.perf_counter_ns() giving weird and incorrect values
enter image description here
I have written this simple while I was working with multi-processing.
Well, everything in my code was going perfectly, except the time.perf_counter() giving like 7000 ...
0
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0
answers
27
views
How do i check specific values in columns in csv
I am working on a project and need a login system that can verify the username and password. The usernames are stored in column 2 and passwords in column 3. The code below checks the rows? I could not ...
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0
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27
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Python requests.get() call returning no data
I'm making an API call to a web service in OTRS via Python's requests library. I know the request is valid since I tested it with curl and it works. However, when I add the parameters in a dictionary ...
- 11
0
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0
answers
12
views
What's the simplest way to annotate a function/method parameter to accept an overlapping Union of types?
In all my functions that allow an overlapping union of types, I already have special handling that checks all parameters to ensure that there are no types which don't support operations with each ...
- 137
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0
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16
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Does Image.fromarray works only with numpy.array objects?
That's a simple question, but I'm using numpy for the first time so I'm quite confused.
I think I understand the how should it works: my function named img_PILarray below creates an array object ...
- 1
-3
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0
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25
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Pyinstaller not installing due to "externally managed enviroment" [duplicate]
So I've just finished making a game in pygame and I wanted to publish it, you would think this is simple however, on running the command:
sudo pip install pyinstaller
I get the error:
error: ...
- 1
0
votes
1
answer
40
views
Numpy 2 has a separate float64(nan) - how to get rid of it?
It appears that Numpy 2 introduced its own separate float64(nan) - different from np.nan. Now regression tests fail because while
>>> np.nan is np.nan
True
we now have
>>> np.nan is ...
- 59.5k
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0
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11
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Python monorepo packaging, using Poetry
I want to organize my Python source code into a monorepo, with the below basic structure:
projectrootdir
- libraryone
- pyproject.toml
- README
- src/orgname/libraryone
- __init__....
- 6,731
-3
votes
0
answers
26
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How much space does Pygame take up? [duplicate]
This isn't a coding problem, but I was just wondering. How much space does Pygame take up? I was just downloading Pygame, but then thought to myself about this. I mean, I am a bit concerned. It may ...
- 15
0
votes
0
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26
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how can i get the value that is displayed when printing a np.float32 value as float? (or int)
I am loading an openEXR files that I have rendered int values into.
Of course they are stored as float32 internally, which can/will cause issues.
But here i am a bit stumped.
When I load the values, ...
- 121
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0
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7
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Hysteresis modelling as a control constraint for MPC in Python GEKKO
I am trying to introduce a hysteresis constraint in an MPC optimization problem for control signal dispatch using Python GEKKO. This has become a daunting task as I am unable to transform the ...
0
votes
0
answers
7
views
Virtual Environment Packages Affecting Global Environment: How to Resolve the Issue
I recently bought a MacBook Pro with an M3 chip and started my first Python project. I created a virtual environment and installed some packages there, which allowed my code to run correctly. However, ...
2
votes
1
answer
16
views
Plotly updatemenus - Only update specific parameters
I'm looking for a way to have two updatemenu buttons on a plotly figure. One changes the data and the y-axis title and one switches from linear to log scale. Broadly the code below works but I lose ...
- 2,159
0
votes
0
answers
19
views
How do I transfer the time from the local time zone to a specific one?
I want to execute the function at 08:00 Yerevan time, but by default it will be executed at 08:00 local time, depending on the location of the server. In the future, my server will be moved to ...
-1
votes
0
answers
9
views
KeyError scraping with Beautiful Soup
I am trying to use beautiful soup to scrape data, I have a .env file with ENV, API_KEY, AND SEARCH_ENGINE_API identified. For some reason I am still running into a KeyError.
Here are my errors:
FAILED ...
- 1
0
votes
1
answer
21
views
Reuse overloaded method in python class with most parameters
I have LCD class which is run by micropython on raspberry pi pico which i initialise like this:
class Lcd:
def __init__(self, width, height, channel, sdaPin, sclPin, contrast):
from time ...
- 1
0
votes
1
answer
28
views
how do i decrypt a cyphertext encrypted with AES with pycryptodome?
I'm making a password manager with python that stores and encrypts passwords (using the pycriptodome module) with a main password set by the user, but the decryption does not work
Here's the function ...
- 11
-3
votes
0
answers
30
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I've managed to save captchas from a website but can't seem to save more titled sequentially [closed]
import requests
def download_image(url, save_as):
response = requests.get(url)
print(response.status_code, response.reason)
with open(save_as, 'wb') as file:
file.write(response....
- 1
0
votes
0
answers
6
views
How to create an API authorization with the latest IOS SST and AWS
I want to create an API with the new SST v3 aka ION SST.
Docs don't say much about auth-related things and I feel confused.
I have a separate Next.js app and now I want to create a backend ...
- 620
-7
votes
0
answers
25
views
How to code using prim's algorithm using lists or priority queues to generate a maze? [closed]
For my NEA project I chose to generate mazes for my game using python. Prim's algorithm feels so complicated and I'm a beginner in coding python. I really need help with this because as I read other ...
0
votes
0
answers
10
views
AWS Lambda python log file is not created
I have a Python AWS lambda with a logger that generates two different log files:
LOG = f"/tmp/{uuid.uuid1()}_log.log"
SLOW_LOG = f"/tmp/{uuid.uuid1()}_slow.log"
logging....
- 616
-3
votes
0
answers
25
views
How do I Install pytorch without GPU dependencies?
I have a project that depends on torch==2.0.1, but it will run on CPU not GPU. torch has some large cuda/cublas/cudnn dependencies that I believe are only needed when running on GPU. These packages, ...
- 1