Python Courses, Training, and Tutorials

I'm trying to execute the following code: from cryptography.fernet import Fernet key = Fernet.g… Read more Python's Cryptography Throwing AttributeError: 'int' Object Has No Attribute 'value'

Got this error after changing my database from sqlite to postgresql. I've made all my settings … Read more ProgrammingError: Relation "django_session" Does Not Exist

I'm trying to pull down the values of custom fields from my Asana list. I'm using the Offic… Read more How Can I Access Custom Fields From Asana API Using Python?

I startetd an ocr project a few days ago. The input image is a really noisy gray image with white l… Read more How To Improve The Accuracy Of Pytesseract?

I have used Python to perform optimization in the past; however, I am now trying to use a matrix as… Read more Problems With Scipy.optimize Using Matrix As Input, Bounds, Constraints

I have a script where I want to check if a file exists in a bucket and if it doesn't then creat… Read more How To Check If File Exists In Google Cloud Storage?

import pandas import sys import os import csv import string f=open(myfile,'r') lines=f.rea… Read more Best Method In Writing A List To A Text File In Python?

I am trying to make a program that asks the user to draw a shape and how many of that shape to draw… Read more Ask User What Shape To Draw And How Many In Python Turtle

I am trying to become more familiar with the itertools module and have found a function called ifil… Read more Itertools.ifilter Vs. Filter Vs. List Comprehensions

I'm creating an excel dashboard and I want to generate an excel workbook that has some datafram… Read more Python: Writing Images And Dataframes To The Same Excel File

Python keeps saying that there's no module named six, however a already used pip install six an… Read more Error "no Module Named Six" After A Pip Install

I'm trying tu use openpyxl to open excel-files with python. It already worked but suddenly it d… Read more Can't Load Workbook With Openpyxl

I really hope some Python/Ctypes/C expert can help me with this one, it is probably my lack of know… Read more How Do I Correctly Call A Function That Takes A "custom Enum" As Argument Using Ctypes And Ctypes Based Enums?

I am trying to evaluate a multivariable dataset by leave-one-out cross-validation and then remove t… Read more Leave-one-out Cross-validation

I have a DataFrame in this format: a b c 0 1 2 3 1 4 5 6 2 7 8 9 3 10 … Read more How Can I Select A Specific Column From Each Row In A Pandas DataFrame?

The following code I'm using to minimax a tree looks awful. Surely there is a way to simplify t… Read more Minimax Python - How To Efficiently Find Alternating Max And Mins In A Tree

Following document, I can run scrapy from a Python script, but I can't get the scrapy result. T… Read more Confused About Running Scrapy From Within A Python Script

Courtesy to the original question for Plotly-R. The following will focus on Python. Is it possible… Read more Plotly-Python: How To Make A Gapped Y Axis?

Courtesy to the original question for Plotly-R. The following will focus on Python. Is it possible… Read more Plotly-Python: How To Make A Gapped Y Axis?

I am trying to iterate over an array twice to have pairs of elements (e_i,e_j) but I only want the … Read more Iterate Over Array Twice (cartesian Product) But Consider Only Half The Elements