python Archives - Page 756 of 830

cx_Freeze converted GUI-app (tkinter) crashes after pressing plot button

August 12, 2022 by Magenaut

I’ve been dealing with this for days now and hope to find some help. I developed a GUI-application with imported modules tkinter, numpy, scipy, matplotlib, which runs fine in python itself. After having converted to an exe everything works as expected, but NOT the matplotlib section. When I press my defined plot button, the exe simply closes and doesn’t show any plots.
So I thought to make a minimal example, where I simply plot a sin-function and I’m facing the same issue:
Works perfect in python, when converting it to an exe it crashes when pressing the plot button. Here is the minimal example:

Writing a init function to be used in django model

August 12, 2022 by Magenaut

I’m trying to write an __init__ function for one of my models so that I can create an object by doing:

pip install dependency links

August 12, 2022 by Magenaut

I am using python version 2.7 and pip version is 1.5.6.

How to split a numpy array in fixed size chunks with and without overlap?

August 12, 2022 by Magenaut

Lets say I have an array:

Python Weighted Random

August 12, 2022 by Magenaut

I need to return different values based on a weighted round-robin such that 1 in 20 gets A, 1 in 20 gets B, and the rest go to C. So: A => 5% B => 5% C => 90% Here’s a basic version that appears to work: import random x = random.randint(1, 100) if x … Read more

String exact match

August 12, 2022 by Magenaut

I have a string in which the word “LOCAL” occurs many times. I used the find() function to search for this word but it returns another word “Locally” as well. How can I match the word “local” exactly?

What does Python optimization (-O or PYTHONOPTIMIZE) do?

August 12, 2022 by Magenaut

The docs only say that Python interpreter performs “basic optimizations”, without going into any detail. Obviously, it’s implementation dependent, but is there any way to get a feel for what type of things could be optimized, and how much run-time savings it could generate?

Subtract two columns in dataframe

August 12, 2022 by Magenaut

My df looks as follows:

Are numpy’s basic operations vectorized, i.e. do they use SIMD operations?

August 12, 2022 by Magenaut

I am doing some performance analysis, and i wonder, whether numpy vectorizes its standard array operations, when the datatype is known (double).

Pandas: Datetime Improperly selecting day as month from date

August 12, 2022 by Magenaut

I’m working with some datetime data in a dataframe. It’s in a format day/month/year Ex: Date —————- 27/06/2021 00:00 27/06/2021 00:00 30/06/2021 00:00 30/06/2021 00:00 30/06/2021 00:00 18/06/2021 00:00 26/06/2021 00:00 28/06/2021 00:00 28/06/2021 00:00 27/06/2021 00:00 28/06/2021 00:00 30/06/2021 00:00 12/06/2021 00:00 28/06/2021 00:00 I want to extract the month and year, so I … Read more