Questions tagged [python-2.x]

Python 2 is the predecessor of Python 3 and its last version, Python 2.7 was formally released on July 3, 2010. Use this tag along with the main python tag to denote programs that are meant to be run on a Python 2 interpreter only. Do not mix this tag with the python-3.x tag.

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2answers
73 views

Python Regex to validate an email

I have written this regex to validate an email. It seems to work fine. Can someone advise on the regex used? Does it work properly or can be done in a better way? ...
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1answer
69 views

Determine if points are within a rotated rectangle

Using only Python 2.7 and the standard library (no imports): Determine if a point is inside the rotated rectangle. ...
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3answers
469 views

Finding the prime factors of a number in Python 2

I’ve created a function that takes a number and, if it’s prime, tells you so, or if it’s composite, gives you the prime factors of the number (and if it’s 1, tells you that it’s neither). ...
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1answer
75 views

LeetCode 839: Similar String Groups III

I'm posting my code for a LeetCode problem. If you'd like to review, please do so. Thank you! Problem Two strings X and Y are similar if we can swap two letters (in different positions) of X, so that ...
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0answers
61 views

Find the available squares for rooks in empty board using boolean arrays

I will describe two techniques, then the question will be how I can make an algorithm that is more efficient, if possible. I want to find an efficient way to determine the squares where the pieces on ...
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1answer
60 views

Part 2: Create or update record via HTTP request

This script was previously reviewed here: Part 1: Create or update record via HTTP request I've made the changes that were suggested by @Reinderien. Now that the code has been significantly refactored,...
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1answer
127 views

Part 1: Create or update record via HTTP request

Update: This is an older version of the question/script. The new version can be found here: Part 2: Create or update record via HTTP request I have an external system that sends an HTTP request to a ...
2
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1answer
62 views

Updating a dictionary of trajectories after a step has been made

I am using a dictionary to save possible trajectories in a game. A trajectory is defined as a list of numbers separated by _. For example ...
2
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1answer
108 views

Python - Do I need a class or are these functions okay?

I'm fairly new to Python but had to start using it and for reasons I have to use 2.7, which is why I am using that syntax. I have this function which gets data from a file, if it exists, and then gets ...
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1answer
66 views

Image color-moment extractor [closed]

I was just wondering if there is a way to speed up the performances of this for loops in Python. I'm trying to process an image to get the color-moments without using libraries. It takes about 12sec ...
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3answers
716 views

Prime sieve generator

I wrote a simple prime sieve in Python. But it ended up looking... ugly. I included a few of the most basic optimizations. When posting this question SE suggested a bunch of questions on the same ...
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1answer
31 views

Selecting minimal sum of two distinct entries of two dicts with common keys

Can this function simplified? The goal is return one key from each dictionary (both contain the identical keys), so that the sum of the values that belong to the selected keys are minimal (and also ...
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1answer
74 views

Linux bonding status check

I have created the below code which works for me, but I feel there might be a better way to accomplish this in a new Pythonic way or better Python syntactic way. Code snippet: ...
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2answers
79 views

Better pythonic way to pass condition to multiple functions [closed]

I have the following scenario where most of my functions require to return different things based on a condition. ...
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1answer
1k views

Foo Bar - Power Hungry challenge test case failing on unknown edge cases [closed]

The challenge is to find the maximum product of a subset of a given array. Here's the problem: Write a function solution(xs) that takes a list of integers representing the power output levels of ...
3
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1answer
67 views

Estimation of min_samples for DBSCAN

I'm attempting to speed up some python code that is supposed to automatically pick the minimum samples argument in DBSCAN. Currently the execution time grows exponentially as the number of training ...
2
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2answers
108 views

Python - Hexadecimal to Decimal conversions

I have written a python 2 program for a school project to convert from hexadecimal to decimal without using built-in functions and vice versa in python. I would like to know how I can make my code ...
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0answers
65 views

Store special deals, like 3 for 2

I have to apply two deals on the cart. Buy 3 (equal) items and pay for 2 Buy 3 (in a set of items) and the cheapest is free Items in cart: ...
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0answers
49 views

Reading attachment data from a PostgreSQL table with python

I have developed this script to find the counts of attachment records stored in a table in PostgreSQL for different other tables. I check if the res_id field of <...
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1answer
191 views

Reading employee data from a PostgreSQL database

I have developed this script to read employee_language table records of a PostgreSQL database using Python 2 (due to some OS limitation). I want to find duplicate ...
2
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1answer
35 views

Reload polyline midpoints into parallel tables

I have an Oracle GIS database that has spatial tables. The records in the spatial tables have a geometry column that contains polylines. I've written a Python 2.7.16 script that calculates the ...
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0answers
52 views

Python - Displaying messages in ArcPy/IDLE

I have created a wrapper for displaying messages with ArcPy and IDLE (as that is all I have available to myself due to certain circumstances) as I frequently use both to test and develop new tools. ...
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1answer
29 views

Executing Scipy Tensor Product [closed]

Can anyone advise on how to use the SymPy TensorProduct function without having to explicitly indicate the full sequence of objects to take the product of. Below (for the simple case N=3) you can see ...
2
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1answer
63 views

Weaving multiple lists into one

I have this code to weave the split_input ['5,4 4,5 8,7', '6,3 3,2 9,6 4,3', '7,6', '9,8', '5,5 7,8 6,5 6,4'] together. However I feel like this can be done more ...
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1answer
65 views

Pyg Latin Translator [closed]

I have a code for a short Python 2 Pig Latin translator. Is it a good code, or should it be revised? ...
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0answers
88 views

Python Project Template

What's up smart people. A little backstory for context: I'm a completely self taught dev, and the only person ever looking at my code for the past 6 years is myself. I realize that's not the best idea ...
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1answer
213 views

Simulate Tic-Tac-Toe game in Python

Simulate a tic-tac-toe game Requirements A player is picked at random as a first player. The two players plays tic tac toe game. The game ends when the board is full or either one of the player ...
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1answer
157 views

Universal string conversion

Below there is a function eating all strings and convert it to Unicode. It works fine. But is it the best way to do so? Is there maybe already an existing function for it? The reason was a German ...
2
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1answer
101 views

An imitation of reading a C Struct from binary file in python 2.7

Preliminary I need to read a binary file constructed by writing a Struct to it with Python. So I decided to write a simple wrapper using ...
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0answers
79 views

AWS plugin to create a CloudFormation stack if it doesn't exist

The following Python class is what I am trying to refactor in the case where I have to add validation of the existence of an AWS cloudformation stack before creating it in the method create_cfn_stack :...
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3answers
36 views

`set_includes` (string subsequence-containment) in Python 2

I've implemented C++'s std::includes algorithm in Python, so that I can use it to efficiently implement a Scrabble "can I make this word" function: ...
4
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2answers
177 views

Print a pattern of text based on a line from an Excel file

I started to learn Python not long ago to automate certain tasks I work on. I want to optimize a script I wrote that takes a line in an Excel file and prints a pattern of text based on this line's ...
1
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1answer
84 views

Django view of reward points that heavily filters and sorts (many) database results

My page (even when it has no data) takes 10+ seconds to load. That's just too long, considering when you finally get to it there's no data. When it has data, it takes even longer. Here is my view, ...
5
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2answers
107 views

Program to delete directories that do not contain a file

I'm an intern and have an ETL project I'm doing in python. Part of it is to make sure after I move files I delete empty directories. I wrote this code to clean up directories that are empty and in ...
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1answer
2k views
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2answers
542 views

Guttag's Finger Exercises: Enter 10 integers, find largest odd integer and print result

I'm making my way through the Intro to Computation and Programming test by John Guttag and he gives these small exercises to practice gearing up into computational thinking. As of Ch.2, we've covered ...
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0answers
109 views

Animation of an incremental rotary encoder

While reworking my teaching materials for an exercise of an introductory course on mobile robotics, I recently created a animation/simulation of an incremental rotary encoder, e.g. often used for ...
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0answers
76 views

Extract cell values from multiband rasters

I have the following function and code snippet to extract cell values for multiple years, format it, and save to a list. Each raster has 365 bands — one for each day. A separate operation is performed ...
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0answers
38 views

Combining CSV files of simulation results

This script is a subset of a larger script where I have the output of many test simulations in the form of CSVs. Each file starts with the model name and includes the number of elements in my file. ...
7
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2answers
394 views

Count reoccurring elements in multiple lists in Python

I have a number of names divided into several lists. I am printing all the names which occur in more than one list, sorted by the number of occurrences. What is a better/easier/more pythonic way of ...
5
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1answer
114 views

Run a command for all files in a directory

I have a program that needs to run an command on all the files in a folder: ...
2
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1answer
1k views

Python script for sorting a huge log file based on timestamps

I want to write a python script to sort a huge file, say 2 GB in size, which contains logs in the following format - ...
3
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0answers
56 views

Pygame : processing speed independant image loop displayer

I made this in order to teach myself pygame. This displays an images loop at the same speed on any computer (It will lag on a slow computer). Is my time management good or do my datetime call could ...
3
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2answers
90 views

Trellis Generator

I've been tasked with writing a simple trellis generator. The user is prompted with entering the height and width of the desired trellis, and gets a printed result of a trellis with the entered ...
5
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1answer
526 views

Improving the speed of creation for three Perlin Noise Maps in Python?

I am interested in learning how I can improve the speed of the code in this pygame file. I iterate over 6400 * 1800 * 3 or 34,560,000 elements of various numpy arrays here to apply noise values to ...
4
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2answers
284 views

automating to push changes to github for multiple repos using python

This Python script does following activities: clone repo, as provided from the list creating a new branch "jenkinsMigrate" rename Jenkinsfile to Jenkinsfile.migrate push code to GitHub in a new ...
7
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1answer
260 views

Plotting terrain pixels with PyGame based on random NumPy array

I am experimenting with Perlin Noise and random map generation. I have a 2D numpy ndarray full of 16-bit floats called map_list that I call from the singleton ...
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1answer
54 views

Functional vs non functional approach in python [closed]

This is not a task, but I want to know what the general consensus is on functional programming. Particularly functional programming in Python. The two snippets of code I am comparing are the ...
3
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1answer
127 views

First python program: basic calculator

I want to start learning python for fun and so I could dig into machine learning projects later in the future maybe. I started off with a small calculator project just to get the hang of the language ...
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2answers
2k views

Capitalize a sequence of lines entered via console input and print/return

I'm running through the popular python practice exercises located at github: https://github.com/zhiwehu/Python-programming-exercises/blob/master/100%2B%20Python%20challenging%20programming%20exercises....

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