Parallel processing in python and need for if __name__ == '__main__'
I've been battling the need for parallel processing in my application. I have relatively good understanding that GIL prevents concurrent processing in a single interpreter, and that there can only be...
View ArticleConvert pandas dataframe to NumPy array
How do I convert a pandas dataframe into a NumPy array?DataFrame:import numpy as npimport pandas as pdindex = [1, 2, 3, 4, 5, 6, 7]a = [np.nan, np.nan, np.nan, 0.1, 0.1, 0.1, 0.1]b = [0.2, np.nan, 0.2,...
View ArticlePython Setuptools Unable to Find .o Extension on Linux
I was trying to compile CppExtension example from https://pytorch.org/tutorials/advanced/cpp_extension.html#building-with-setuptools on Python, but the error said that it can not find the "filename.o"...
View ArticleProblem with built matplotlib contour plot
I have function which set relation between distance and some coefficient. I have build usual plot - there is no problem and I get my coefficien equal max 1. See please code and plot for it.import numpy...
View ArticleHow to register a Django model for a specific database only
I am building a DJango multi-tenant web app that separates the tenants by giving them each their database. The app identifies the source and destination of the requests by checking the hostname. The...
View ArticleError with call of seturl method in qwebengineview [duplicate]
The problem is that when calling the function through the completion of entering text into the input string, it works fine, but when it is activated by an event of pressing key, the code works, but it...
View ArticleError observed while updating python libraries
I have different line of codes to update my python libraries but everytime I do so it keeps telling me "Access is denied"I tried the following lines of codes!pip freeze --local | grep -v '^\-e' | cut...
View ArticleConditionals, loops and functions in python
QuestionThe rules of eligibility for a snake wrestling competition are as follows:Entrants must be snakes.Entrants must be at least 5 years old and younger than 20 years old.Entrants must not be...
View ArticleEvaluating an expression in python with equality and inequality [duplicate]
I tried an expression on my notebook cell3 > 2 == Trueand the output is False ?
View ArticleConverting string to bytes in Python
I'm writing a password manager as a way to practice and develop my programming skills, but I'm having trouble with the decryption. It needs to decrypt the strings from a text file, but it can't decrypt...
View ArticleHow can I display a name of a foreign key for the title of features in Django...
The problem with my code is that it repeats the name of the property title for each object whose foreign key is in the product property model in a loop.I want the attribute_title():"Memory" field to be...
View ArticleHow to flip the bits of a number according to the count
So in the python scriptA below according to geeksforgeeks.org this script is to tell me the amount of bits to be flipped to convert a to b so after i copied the count result i tried to create my own...
View ArticleHow to use Meta Deep Cluster model?
I'm carrying out a ML project on Image Segmentation.I found some models by Meta which learns Visual Feature from images, like https://github.com/facebookresearch/deepcluster, this one:...
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Why is my decision tree creating a split that doesn't actually divide the...
Here's my basic code for two-feature classification of the well-known Iris dataset:from sklearn.datasets import load_irisfrom sklearn.tree import DecisionTreeClassifier, export_graphvizfrom graphviz...
View ArticleProblem HTTP error 403 in Python Web Scraping
I was trying to scrape a website, but I kept on getting the HTTP Error 403. How to avoid 403 issue for the URL below?Here is my code:import requestsurl =...
View ArticleOrder nested lists inside column
I have this dataset:df = pd.DataFrame({'Name':['John', 'Rachel', 'Adam','Joe'],'Age':[95, 102, 31,np.nan],'Scores':[np.nan, [80, 82, 78], [25, 20, 30, 60, 21],np.nan] })I would like to sort values...
View ArticleIdentifying row numbers where value is stable before and after the value in...
EDITEDI have a pandas dataframe like so:data = {'ID': ['A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A', 'A',...
View ArticleRound on DataFrames transform perfect number in decimals [duplicate]
I am currently working with pandas version 2.2.0 and I have the following issue when rounding my DataFrame:pd.DataFrame({"value": [26586491.0]}).round(15)["value"].iloc[0][2]: 26586490.999999996This is...
View ArticleHow do I solve the problem that pytorch still allocates space to the...
Even though I set the visible gpu to 0，2，5，7, there is still a problem of insufficient allocated memory space, and the error gpu is gpu3.here are my error callback:Traceback (most recent call last):...
View ArticleDatetime from year and week number
I have a year and a week number which I want to convert into a datetime.datetiem object. My (naive?) reading of the documentation hinted that strptime('2016 00', '%Y %W') should do just that....
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