Questions tagged [python-3.x]
Python 3 is the latest version of the Python programming language and was formally released on December 3rd, 2008. Use this tag along with the main python tag to denote programs that are meant to be run on a Python 3 interpreter only. Do not mix this tag with the python-2.x tag.
5,313
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Convolution to reduce popcorn noise in black and white video
I have a black & white video as a tensor with the shape [Time, Width, Height] with popcorn noise and I would like to reduce the noise by naively convolving along the time dimension.
Using a ...
- 1,517
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Python tic-tac-toe using tkinter
I recently made this tic-tac-toe program using tkinter, but I am quite new to tkinter, so I would be grateful for tips on how to improve the program. (Note that the actual tic-tac-toe logic is being ...
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Can the k-index in either of the two individual locations be used to predict the estimated kp-index?
The k-index measures the condition of the magnetosphere. It is usually averaged over three hour, so each day has 8 measurements.
The planetary k-index (kp-index) is an average of the measures taken ...
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Algorithm "sort except zero"
Task:
Sort the integers in sequence in sequence. But the position of zeros should not be changed.
Input: List of integers (int).
Output: List or another Iterable (tuple, generator, iterator) of ...
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CPU emulator written in python (Adjustable Microcode!)
I've designed and implemented a CPU architecture in one day. Of key architectural details: Processor is supposed to support updatable microcode, Architecture extensions and Is designed to be ...
- 135
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2
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121
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NumPy script to convert BGR to HSL and back
This is a NumPy script that converts BGR arrays to HSL arrays and back, without using OpenCV. Input and output values are arrays of 3 dimensions with values ranging from 0 to 1, the shape of the ...
- 2,954
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2D Point subclass of complex builtin
I'm writing a pure-python geometry tool for technical drawings / computational geometry (not a solver, as a solver has to work with constraints). I've already mentioned a previous version on code ...
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139
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Generate random password from a list of allowed characters
The code itself is a random password generator which is encapsulated.
The other question about this code is whether it should be encapsulated on its main function.
Or is it enough to exist in its own ...
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Metaclass Wrapping Builtin to Enforce Subclass Type
This metaclass utility is written to make subclassing builtins easier, such as int, str, and most importantly, ...
- 135
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29
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Synchronisation access to a shared class in Python server with async/await
Last week I wrote a simple server on FastApi to run ML model to classify a text on Chinese (split text on separate words). When I had clarified work of this model with API, it became time to confirm ...
- 121
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Application install code- Need to remove Nested Loops and make code more compact and readable. Code installs application and its version as per req
This code installs the application, according to the type of application selected like alpha, beta, and released, also it checks for latest version in each type.
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Here is a Tic Tac Toe game in Python using functions
I am a new programmer, learning from youtube and other sites I can get my hands on. The assignment was clear. Create a Tic Tac Toe game using functions as much as possible and where needed.
I am ...
- 109
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2
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How can I get my CPU Utilization Down? PYGAME PROJECT
I get 25% CPU usage on this simple project. I hope it's okay if I just post the whole thing. It probably something to do with the rendering code. It's definitely the project though, my fans get loud, ...
- 81
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1
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Count the Streaks in a coin flip and display the number of Head vs Tail Streaks
Like title says programs shows you the number of streaks and how many of each. Is there anyway to break this down. Feels like it's too many variables.
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convolutional neural network in python
I am new to python, so the challenges for me currently are:
Clear, simple code, trying to follow standard practices
Useful comments,
Use types (for better understanding of input/output relationships.)...
- 239
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1
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76
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Randomly rotate an image through right angles
I'm new to Python, and coming from Typescript, I tried to include types, but it's not obvious sometimes.
Currently this is the way I type objects:
Write own simple types
Import type from a library ...
- 239
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2
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Python 3.10+ deconstructing an over engineered solution to better understand how metaclasses work with properties, static methods, and classmethods
TL;DR
This question examines an over-engineered example of python metaclasses and dataclasses to create a LiteralEnum (for validating a stringly-typed keyword ...
- 271
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1
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133
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Very simple Flappy 'Bird' game - First project in Python
I am a beginner in Python. This is my first project in Python (that I tried to complete).
There is a grey square that acts as the Flappy 'Bird' with green obstacles spawning with random gap sizes. The ...
3
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1
answer
306
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Python function to find the count of digits of numerals in base n up to a given limit
This is a simple exercise to find the count of digits of all numerals in a given base up to a given limit (not including the limit), I wrote it to determine the ratio of bytes saved when the numbers ...
- 2,954
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YouTube to LBRY Video Uploader - V0.1.0
I have developed a Python script that allows users to upload videos from YouTube to LBRY. The script also performs video post-processing and database operations. I would like to request a code review ...
4
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271
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Python IP geolocation script
These are two Python scripts I wrote to convert a GIGANTIC text file of over 100MiB in size (the current version is 152.735MiB) to an SQLite3 database to use for geolocation, and the script that ...
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113
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Middle-outwards alternating iterator
I have a use-case where I want to iterate from the middle of an array outwards, so I generate a list of indices as follows:
...
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64
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108
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Python script that makes generalized Ulam spirals
This is a Python script I wrote to generate generalized Ulam spirals.
I call the spirals generated by my code Ulamish spirals, they are one dimensional polylines that cross all two dimensional lattice ...
- 2,954
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28
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Re-write of PDF invoices from user input, decoupling of Invoice from FPDF class
Following on from this post and taking on board some of the suggestions, what follows is a re-write of the original python code. It's also just a rewrite of some of the functionality, this code only ...
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95
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Pythonic and mypy compatible way to map str to Enum
my goal is to have a user input a string that is checked to be valid - by defining a dict of allowed strings - and mapped to another string to be stored in a list.
Another function is supposed to map ...
- 103
2
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1
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86
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Password recognition with cryptography
Since I only just learnt about this, I wanted some advice on better practices I can use when it comes to cryptography. Still learning python and hoping I can get this 'hashing' and 'salting' thing in ...
- 189
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2
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86
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Increasing writing speed to file inside a for-loop for large files
I have a .csv file containing 100 millions records, I would to create multiple files from this file, after certain condition satisfied in each line, I came to this code below, but it is slow, I think, ...
- 309
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1
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33
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Counting distance between kmer instances in a sequence
I want to calculate the distance between k-mers instances in a long sequence (words of length k, bigrams, trigrams, etc. In bioinformatics the are called k-mers).
I developed this code that look for ...
2
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1
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86
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Pomodoro Work Timer with GUI
My first actual code using GUI. Based off a class I took. Code criticism much appreciated. (I was all over the place with this one)
Resources
Picture:
Sound: https://www.freesoundslibrary.com/success-...
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383
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Python script to split overlapping ranges, version 4
This is the fourth iteration of a Python script I wrote that splits overlapping ranges, and this is the fastest version I have wrote so far, and also a version that works for all inputs. I have done ...
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1
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69
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Leetcode 137: Single Number II -- python bit operations
I solved LeetCode 137 in C++. TLDR of the problem: array of numbers, nums is given; all numbers appear 3 times, except one which appear only once. Find the number ...
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121
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Applying the __add__ operator on all fields of a Python object
I have a class for which I want to overload __add__ to mean adding all fields between obj1 and ...
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1
answer
47
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Change unit-test structure to avoid try/except/finally clause
I have 10 or 20 tests with the same structure which I would like to improve. The test itself is nested within a try/except/finally clause to make sure that some of ...
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48
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Pygame Texture Ray Caster
Recently I have been attempting to develop a ray caster in python pygame. I managed to get it to work fairly efficiently when using basic colors, but when I altered the program to use textures instead,...
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1
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101
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Calculate the cost of Biryani lessons
Problem:
According to a recent survey, Biryani is the most ordered food. Chef
wants to learn how to make world-class Biryani from a MasterChef. The
chef will be required to attend the MasterChef's ...
- 113
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86
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Python script that maps natural numbers to lattices in a spiral-like manner
This is a Python script that maps natural numbers to lattice points in a spiral like manner. It maps all natural numbers to all points with integer coordinates, and it produces a list of coordinates ...
- 2,954
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3
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Calculate length of continuous gaps
So, I have a list with some nan values, out of which some are continuous. e.g, list = [1, 2, 3, np.nan, np.nan, 6, 7, np.nan, 9, np.nan,np.nan,np.nan, 12] For some necessary reason, I'd want to get ...
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1
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138
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Python 3 script that draws animals using basic functions
I'm new to Python and only started learning a couple months ago. I get that this is a really unsophisticated code and I'm a newbie, but are there any blatant issues with it that I can improve upon? I ...
4
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1
answer
138
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AutoComplete-Esque Tree
I've written a tree data structure that takes in input from the user, and stores the each letter based on the previous letter in the text. I'm not sure what this is called, but the closest I can find ...
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86
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A practice program to manipulate a database table using dependency injection [closed]
I am learning dependency injection and trying to use this pattern on practice. I am trying to write simple program where the user can write something to database, delete row and clear all rows from db....
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3
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141
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Decorator to validate that Python function arguments are positive
I have a list of functions whose parameters in the signature should be validated with the same criteria each time.
...
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4
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2k
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Automate the boring stuff with python - Character picture grid
Character Picture Grid
Say you have a list of lists where each value in the inner lists is a one-character string, like this:
...
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3
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Automate the boring stuff with python - Comma Code v2
This is the second version of code reviewed earlier.
Comma Code
Say you have a list value like this:
spam = ['apples', 'bananas', 'tofu', 'cats']
Write a function ...
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3
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Automate the boring stuff with python - Comma Code
Comma Code
Say you have a list value like this:
spam = ['apples', 'bananas', 'tofu', 'cats']
Write a function that takes a list value as an argument and returns a
...
- 159
2
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0
answers
81
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Minimal Chess Web GUI with Flask
Being a big chess fan, I finally started developing my own chess tool, however I'm already quite dissatisfied with where it's going...
folder structure:
...
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3
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158
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Automate the boring stuff with python - The Collatz Sequence
The Collatz Sequence
Write a function named collatz() that has one parameter named number.
If ...
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3
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1k
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3
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1
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84
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Terminal Based Blackjack
This is my attempt at a terminal based blackjack game. Currently, the game does not support betting, although I intend to add it in the future.
I would very much appreciate general feedback, but I am ...
3
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0
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80
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Image generator using prime numbers in polar coordinates
Related
This is a Python script that generates images using prime numbers up to a given positive integer, it generates prime numbers using the Sieve of Eratosthenes with some rudimentary Wheel ...
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