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.
5,098
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3
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The shortest path between airports
Airlines need to provide their customers with flights to every corner, so they need an app that allows them to do so. The customer must be able to transfer when there is no direct connection.
The ...
- 407
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1
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39
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Comparing custom Geometry classes (Lines and Planes): How to increase the accuracy of the __eq__ method
I'm creating custom classes to represent Planes and Lines on a 3d graph. To help improve the performance of my process I've started implementing __eq__ so that I ...
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1
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45
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Systems of equations solver with sympy
So this is my first Python project and hoped for a bit of feedback.
I'm trying to make a little program, where I can insert n equations and run a numerical solve. I ended up using tkinter for the GUI ...
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2
votes
1
answer
68
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dataframe mean outliers to NaN to derive a higher quality mean for area,speed,azimuth
I have some data that represents the area, speed(meters per second), and azimuth(rads) of a polygon. The objective is to determine the mean for each set of parameters. With that mean value, apply a ...
- 536
2
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1
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59
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Finding the modal hue of an image
As part of my first python project, I needed to know what the dominant hue of an image was.
I started with finding the modal hue of the image, but the results seemed really odd in images with pale/...
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Scraping housing dataset row by row from Estate Agent's website
I have written web scraping code with selenium with python3 for a dynamic site (it was my first project that is why I started with selenium). In my code I extracted the values and created DataFrame.
...
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3
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2
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76
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Reformatting strings according to different properties with OO
I had to write a cycle that loops a log file and assigns a given status according to some logic.
I didn't post the whole code but this is the script that bugs me the most... why?
Well, first:
I ...
2
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0
answers
42
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Python data entry into excel based on equality check with dataframe
My objective is to enter/type in values into Excel cells if the column names and indices match between Excel and dataframe.
So, my code does the below
Gets the ID values from the dataframe
for each ...
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2
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58
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Search for providers of TV Shows
All my code is below. It uses an API to search for a show and then outputs the providers (like breaking bad is available on Netflix).
The main aim of this application was to practice using APIs and ...
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1
vote
1
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39
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numpy mean azimuth with functools.reduce
From the left to the right column calculating the mean azimuth, and using that mean value to calculate the subsequent columns mean value
data (azimuth radians)
...
- 536
2
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1
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51
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follow-up - Checking Nested Bracket Levels in Strings Programming Challenge
A follow-up to this question, this post improves on test case issues.
To restate problem parameters, a given string S is considered closed if it:
Has a matching ...
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2
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168
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Programming Challenge - Capturing Bracket Levels
I don't have a formal description for this problem, but here are the parameters:
Given a string S check that each opening bracket has a matching closing bracket.
...
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3
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0
answers
33
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Python Script that searches a corpus for most relevant results according to search terms
I am currently working on building a small search engine (if it can be called that) that allows users to search for relevant articles from a short list of other older websites that do not have search ...
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0
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1
answer
49
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Sorting nested dictionary by price - without extra memory
I am working on parsing an orders.csv file with products and prices by different vendors which is kind of a time-series data.
The output of that process looks something like below, with order total by ...
- 271
2
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2
answers
165
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Create csv file for each id value and write all data rows to csv with same id
I have a text file which is tab delimited:
1 324 2344
1 8372 1234
2 62 12
2 872 12111
2 1211 28736
3 87636 198272
The first &...
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2
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2
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64
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Programming Challenge: Python 3 DNS query resolver using socket
This is a DNS query resolver written in Python 3 using socket, I wrote it entirely by myself, it supports 8 primary DNS query types: A, NS, CNAME, SOA, PTR, MX, TXT,...
- 1,666
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1
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101
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pandas dataframe of temps and numpy.linalg.lstsq
The problem is this. Forecast model data indicates at 0700Z the 1000 milibar temps will be -4C°. The forecaster knows that is incorrect, so they choose to make a correction. This correction should ...
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0
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76
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Load license plate data from Excel
The code below gets data from an Excel spreadsheet and returns some values; this can take up to 15 minutes because the Excel has more than 15 columns and an average of 20,000 rows.
...
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2
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1
answer
169
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Programming Challenge - Game Scoring
Can this solution be made more efficient?
game_scoring.py
...
- 2,897
3
votes
1
answer
47
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Weighted Union-Find class
For a final project I used a weighted union-find and decided to implement it in Python. I wrote it to be as general as possible so it's very portable. I do plan on looking into path compression to ...
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1
vote
1
answer
56
views
Ising Model simulation in Numpy
I've written this code to simulate the Ising Model. The idea is a system represented as a matrix with each element having value 1 or -1. The input is an initial matrix of 1 and -1; it is then being ...
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2
votes
1
answer
35
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Python snippet for bulk moving files into their parent folder
I wrote this little snippet which moves files from several subfolders to their parent folder. Since the snippet uses different nested for loops I was wondering if it could be refactored to a cleaner ...
4
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1
answer
100
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Modeling global warming with a sinusoidal fit in Python
I would like to model global warming from temperature records recorded daily from June 1920 to October 2019 in Montélimar on Python. To do this, I would first like to model these seasonal variations ...
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1
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1
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38
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Synchronization \ backup of directories and files (Python)
stackexchange members. I'm just learning to write. I set myself a task a few days ago and today I completed its implementation. The task was to create a "backupper" (I was inspired just by ...
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1
answer
116
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Parse a log file into separate column files
This is a follow-up to https://stackoverflow.com/questions/71194832/converting-json-based-log-into-column-format-i-e-one-file-per-column .
My task is to optimize this code whose function is to convert ...
11
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2
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639
views
Calculator using variable names
I've recently been assigned an assignment to create a word calculator, and given my knowledge in python is still quite lacking, I want to ask if anybody has any better ideas for any possible solutions....
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2
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430
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Sort a Python list of strings where each item is made with letters and numbers
I have a set of strings that all consist of one or two letters followed by one or two digits. I need to sort by the letters then by the numeric value of the digits.
My solution is quite inefficient ...
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6
votes
2
answers
938
views
Comparison function returning -1, 0 or +1
I was solving this:
Write a compare function that returns 1 if x > y, 0 if x == y, and -1 if x < y.
Writing the code, it seemed that after the first if ...
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7
votes
2
answers
542
views
Function that checks Fermat’s Theorem for a set of values
This is a challenge from Think Python 2nd Edition:
Fermat’s Last Theorem says that there are no positive integers a, b,
and c such that aⁿ + bⁿ = cⁿ. for any values of n greater than 2.
Write a ...
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4
votes
0
answers
124
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A skinny json-sql modeller targeting PostgreSQL
Over the last year, I have been slowly building an abstract class for deserialisation, and it has sort of morphed into a lightweight JSON-SQL modeler targeting PostgreSQL with ...
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0
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166
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Python Wordle solver
I created a Python script that solves Wordle (more specifically this version: https://mywordle.org), it uses a wordlist of all possible answers, it is working perfectly and it rarely loses, you can ...
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6
votes
1
answer
400
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LFU Cache implementation in Python 3
Need some feedback on this implementation of LFU cache in python3.
Original problem : https://leetcode.com/problems/lfu-cache/
Would really appreciate some feedback on readability, understandability ...
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3
votes
1
answer
130
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Vincenty's distance Direct formulae numpy
I've refactored a function from the pygc library used to generate the great_circle. The Vincenty's equation below can be found ...
- 536
3
votes
1
answer
289
views
Python function to output a string that is justified to the right
I just solved this exercise from Think Python, 2nd edition:
Python provides a built-in function called len that returns the length of a string, so the value of len('allen') is 5. Write a function ...
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1
answer
74
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Outputting a graphic using functions
How would you make this piece of code more simple/efficient? The problem should not be solved with one print statement, rather with functions
Could you also give me any advice how I can come to your ...
2
votes
1
answer
109
views
Finding the next palindrome number
I wrote a piece of code that generates the next palindromic number and that works fine. However I feel like my code isn't as efficient as it could be. Are there any tweaks that I could implement to ...
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votes
1
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views
Python script to analyse Apache log files
I am fairly new to Python programming language. Most of python programmers have heard the philosophy behind the python programming language. The code should be easy to read, easy to understand, simple,...
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0
answers
22
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Testsuite for implementation of the command pattern
I've attempted to introduce the command pattern for my use-cases. I would like some feedback on my Test suite.
I've tried to delegate as much responsibility to other classes/functions so the primary ...
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4
votes
1
answer
38
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Exporting a merged dataset from multiple source to a downloadable link
I'm working on a use case in hobby project where I am merging data from an external data source with an internal one and exporting that to a downloadable file
The use case is exposed in an ...
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0
answers
42
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CodeReview: CycleGAN Implementation Using Keras FunctionalAPI
Okay So I Am Here Implementing the cyclegan architecture with using keras api
from scratch.
For Those who Wanna Know More About Cyclegan seehere
The CycleGan Compose of Two Phase Architecture Like ...
2
votes
1
answer
72
views
Encode non-negative integer to a string of ascii letters and digits
I want to encode a non-negative integer to ASCII letters and digits.
I wrote below code for that, that works, but which I assume too immature to use in production.
...
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4
votes
1
answer
107
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pandas conditions across rows and columns
Is there a better way to accomplish this? The function determines the Category for each row based on some conditions. Another set of conditions determines the <...
- 536
2
votes
1
answer
88
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Python functions that calculate first n terms of a given order of Fibonacci sequences
I have written two functions that calculate the first n terms of a given order o of Fibonacci sequence, and return the result as ...
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4
votes
2
answers
127
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OOP Matchsticks Game [Update]
I made the changes that were suggested to improve the program in the previous version. I would like to know if it is decent now or is there something to tweak.
...
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8
votes
2
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475
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File Concordance
I am working on this Python project, and I pretty much have it done, I just wanted to get a second opinion, to make sure it looks good, and to see if anyone had any tips for it. I also was a little ...
2
votes
2
answers
52
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Calculates start time and end time of jobs in a dataproc cluster
I have the below function get_status_time which calculates the start time and the end time of the spark job which has already completed its run (status could be ...
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7
votes
2
answers
365
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Rock, Paper, Scissors game in Python with OOP
I am still practising object oriented programming and I decided to do the rock-paper-scissors game as a project.
I listen to constructive criticism to improve the program.
...
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4
answers
1k
views
Get random time between two time inputs
This code takes two times as input and then calculates a random time between the two inputs.
...
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0
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20
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Python selenium online Stanford-Binet Test solver
This is a Python program that solves a version of Stanford-Binet Test found at https://stanfordbinettest.com, basically it is a selenium bot that goes to the test url and submits what I have ...
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votes
1
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104
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Scrape a URL for articles to save
Below is an exercise project I was doing on a certain educational site.
It is supposed to parse a given (static address in this example) URL for html data, search articles of a given type there and ...
