Python Programming Language

Consider the following simplified case: lol = [['John','Polak',5,3,7,9], [&#… Read more Python - Dividing A List-of-lists To Groups

In order to test some security software, I need to be able to create a large (configurable) number … Read more Need To Create A Large Number Of New Processes Very Quickly In Windows/python

At the moment I am using matplotlib to plot multiple numpy arrays (or lists) of data. These corresp… Read more Pyqtgraph For Plotting Multiple Data Lists

Does someone know why pandas/numpy map is slower then list comprehension? I thought I could optimiz… Read more Why Is Pandas Map Slower Than List Comprehension

I am currently using a nested for loop to iterate through to arrays to find values that match a cer… Read more Removing Nested For Loop To Find Coincidence Values

Example code: import numpy as np import math import time x=np.ones((2000,2000)) start = time.time… Read more Why Is Np.linalg.norm(x,2) Slower Than Solving It Directly?

I wanted to test the performance of vectorizing code in python: import timeit import numpy as np d… Read more Performance In Different Vectorization Method In Numpy

I have a huge training dataset with 4 classes. These classes are labeled non-consecutively. To be a… Read more Vectorized Relabeling Of Numpy Array To Consecutive Numbers And Retrieving Back

What would be the most efficient way, in python, to uniformly sample random two-dimensional numbers… Read more Sample Random Points Over Intersection Of Surfaces

Now that the insertion order of Python dictionaries is guaranteed starting in Python 3.7 (and in CP… Read more Fastest Way To Sort A Python 3.7+ Dictionary

Suppose I have a column vector y with length n, and I have a matrix X of size n*m. I want to check … Read more Numpy Element-wise In Operation

In doing some bioinformatics work, I've been pondering the ramifications of storing object inst… Read more Storing Python Objects In A Python List Vs. A Fixed-length Numpy Array

I'm a newbie in the Python and GAE world and I have a question. With Python the normal approach… Read more Mixing Python With A Faster Language For Optimization In Gae

first of all, i am quite new in Python (an programming area) but i wish to learn and convert a func… Read more Implement A Script In A Function. Some Suggestions?

I have an array of values, t, that is always in increasing order (but not always uniformly spaced).… Read more Quickly Find The Index In An Array Closest To Some Value

I am currently learning Python 3 and thought some speed comparison could be neat. Thus, I created s… Read more Python 3: Loops, List Comprehension And Map Slower Compared To Python 2?

I am profiling a numpy dot product call. numpy.dot(pseudo,pseudo) pseudo is a numpy array of cust… Read more Reasons Of Slowness In Numpy.dot() Function And How To Mitigate Them If Custom Classes Are Used?

Consider, the content of json file before the update is, {'key1': 'value A', 'k… Read more How To Update The Value Of A Key In A Json File Without Loading The Complete Json In Python?

(Windows) I wrote some Python code that calls the program SoX (subprocess module), which outputs th… Read more Why Is Piping Output Of Subprocess So Unreliable With Python?

I have a Python function that takes a list and returns a generator yielding 2-tuples of each adjace… Read more Why Is This Slicing Code Faster Than More Procedural Code?