Skip to content Skip to sidebar Skip to footer
Showing posts from November, 2024

Attributeerror: 'nonetype' Object Has No Attribute 'copy'

The full error is : OpenCV: out device of bound (0-0): 1 OpenCV: camera failed to properly… Read more Attributeerror: 'nonetype' Object Has No Attribute 'copy'

Python & Sql Server

What is the best way to access sql server from python is it DB-API ? Also could someone provide a s… Read more Python & Sql Server

What Is The Fastest Way In Python To Convert A String With Formatted Numbers In An Numpy Array

I have a large ASCII file (~100GB) which consists of roughly 1.000.000 lines of known formatted num… Read more What Is The Fastest Way In Python To Convert A String With Formatted Numbers In An Numpy Array

When To Stop When Number Is Not A Happy Number

A happy number is defined by the following process. Starting with any positive integer, replace the… Read more When To Stop When Number Is Not A Happy Number

Rpn Evaluator Optimization Without Losing Readability

I'm implementing a program that needs a RPN calculator function, I've got the one bellow, b… Read more Rpn Evaluator Optimization Without Losing Readability

What Is The Best Way To Extract This Data

Looking at the site, i suppose not to see an error because each local language(Yoruba) as it Meanin… Read more What Is The Best Way To Extract This Data

Adding Hatches To Seaborn Heatmap Plot

Is there a way to hatch particular 'cells' in a seaborn heatmap, which e.g. fullfill a cond… Read more Adding Hatches To Seaborn Heatmap Plot

How Do I Fix This Memoryerror For A Large Array

I am getting this error in my code: MemoryError: Unable to allocate 10.5 GiB for an array with shap… Read more How Do I Fix This Memoryerror For A Large Array

Search In A Txt File Containing Tab-separated Values In Python

I have a TXT file which consists of tab-separated values of the following form (3 columns): type … Read more Search In A Txt File Containing Tab-separated Values In Python

Using Flask Return To Modify A Webpage

I have the simplest flask app: app = Flask(__name__) @app.route('/python/', methods = ['… Read more Using Flask Return To Modify A Webpage

Search For Strings In Python

How could I search for a string in a text and add another string after it like the following: I wan… Read more Search For Strings In Python

Python: File Attachment Not Working While Sending Email By Crontab

The following source code is working fine when running manually but with crontab job mail is succes… Read more Python: File Attachment Not Working While Sending Email By Crontab

Priority Queue With Two Priority Values

As it is good known, elements which are inserted to the priority queue have a value which determine… Read more Priority Queue With Two Priority Values

Google Cloud Build Error "print_env_info.py: Error: Unrecognized Arguments"

I'm trying to get a Google Cloud development environment up and running on my Windows (64 bit) … Read more Google Cloud Build Error "print_env_info.py: Error: Unrecognized Arguments"

Is There An Equivalent To R Apply Function In Python?

I am trying to find the Python equivalent to R's apply function but with multidimensional array… Read more Is There An Equivalent To R Apply Function In Python?

Filter List Of Dicts By Highest Value Of Dict And Taking Reversed Values Into Account

Let's say i have data looking like this: filter_data = [ {'sender_id': 1, 'rece… Read more Filter List Of Dicts By Highest Value Of Dict And Taking Reversed Values Into Account

Python Networking: Asynchat Handshake

I am using python asynchat to implement a network protocol. At connection time I need to send a com… Read more Python Networking: Asynchat Handshake

Using List Comprehension Instead Of For Loop When Working With Django Querysets

I'm trying to tweak an application that is suffering in speed department. Because of that, I… Read more Using List Comprehension Instead Of For Loop When Working With Django Querysets

Issues Related To Creating Mask Of An Rgb Image In Opencv Python

I want to create a mask of a RGB image based on a pixel value but the following code segment throws… Read more Issues Related To Creating Mask Of An Rgb Image In Opencv Python

Converting Numpy Array Svg Image

I have an image which I want to save in svg format. The image is in the form of a numpy array. Alth… Read more Converting Numpy Array Svg Image

Python Ssl Ssl.sslerror: [ssl: Unsupported_protocol] Unsupported Protocol (_ssl.c:590)

I get this error when using python 2.7.10 or 2.7.9 but works with python 2.7.6 (haven't tested … Read more Python Ssl Ssl.sslerror: [ssl: Unsupported_protocol] Unsupported Protocol (_ssl.c:590)

Host Django Application In The Lightsail's Built In Apache Server

I want to have a production ready Django app with Lighsail and for that I'm following two tutor… Read more Host Django Application In The Lightsail's Built In Apache Server

How To Retrive Values In Many2one Field As Selection Field?

How to retrieve values on Many2one field using OnChange ? the student should be registered in one s… Read more How To Retrive Values In Many2one Field As Selection Field?

Zc.lockfile.lockerror In Zodb

I am trying to use ZODB 3.10.2 on my web server which is running Debian and Python 2.7.1. It seems … Read more Zc.lockfile.lockerror In Zodb

Scrape Google Resultstats With Python

I would like to get the estimated results number from google for a keyword. Im using Python3.3 and … Read more Scrape Google Resultstats With Python

Disable Index Pandas Data Frame

How can I drop or disable the indices in a pandas Data Frame? I am learning the pandas from the boo… Read more Disable Index Pandas Data Frame

Django & South: Adding New Field But Databaseerror Occurs "table Already Exists"

In trying to add a new field to a preexisting Model/table, I get a DatabaseError with 'table al… Read more Django & South: Adding New Field But Databaseerror Occurs "table Already Exists"

Sort Top N And Group 'others' In Pandas Df

Suppose I have the df import pandas as pd dic = {'001': [14], '002': [3], … Read more Sort Top N And Group 'others' In Pandas Df

Django Createupdateview Implementation In The Django Template

I am very new to django Class based views, trying to integrate it with my existing project. My goal… Read more Django Createupdateview Implementation In The Django Template

Python And Django Ide With Remote Editing?

I'm looking for an IDE that will allow me to edit remote Python projects and also has decent Dj… Read more Python And Django Ide With Remote Editing?

How To Insert A Comment Line To Yaml In Python Using Ruamel.yaml?

I have a structure like this to which I want to add comment lines using ruamel.yaml: xyz: a: 1 … Read more How To Insert A Comment Line To Yaml In Python Using Ruamel.yaml?

Getting Typeerror When Trying To Concatenate 'str' And 'nonetype' Objects

I have the following code: import requests from bs4 import BeautifulSoup def hltvmatch_spid… Read more Getting Typeerror When Trying To Concatenate 'str' And 'nonetype' Objects

Importing Tensorflow Stops Python Program From Running

I have Python Tools setup in Visual Studios with CPython installed. In Visual Studios, if i run the… Read more Importing Tensorflow Stops Python Program From Running

In Practice, Why Compare Integer Is Better Than Compare String?

I did this test import time def test1(): a=100 b=200 start=time.time() if (a>b):… Read more In Practice, Why Compare Integer Is Better Than Compare String?

How To Aggregate Only The Numerical Columns In A Mixed Dtypes Dataframe

I have a mixed pd.DataFrame: import pandas as pd import numpy as np df = pd.DataFrame({ 'A'… Read more How To Aggregate Only The Numerical Columns In A Mixed Dtypes Dataframe

Receive Multiple Send Commands Using Mpi4py

How can I modify the following code (adapted from http://materials.jeremybejarano.com/MPIwithPython… Read more Receive Multiple Send Commands Using Mpi4py

Django Tutorial01 Operationalerror: No Such Column: Polls_choice.question_text_id

I was new to Python and Django and followed 'django / docs / intro / tutorial01.txt' step … Read more Django Tutorial01 Operationalerror: No Such Column: Polls_choice.question_text_id

Why Are The Arguments To Matplotlib's Plot_wireframe Two Dimensional Arrays?

I cannot find a clear explanation of the X, Y, and Z arguments to Matplotlib's plot_wireframe f… Read more Why Are The Arguments To Matplotlib's Plot_wireframe Two Dimensional Arrays?

Matplotlib Plot Shows An Unnecessary Diagonal Line

So I'm trying to plot the approximation of an equation using Euler's method, and it works, … Read more Matplotlib Plot Shows An Unnecessary Diagonal Line

How To Manage Access To A Mutable Attribute In Python

In Python, we can use the @property decorator to manage access to attributes. For example, if we de… Read more How To Manage Access To A Mutable Attribute In Python