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Showing posts from May, 2023

How Would One Implement Lazy Evaluation In C?

Take for example, The follow python code: def multiples_of_2(): i = 0 while True: i = i + 2… Read more How Would One Implement Lazy Evaluation In C?

Point A Python Turtle Towards Certain Coordinates

Is there any way to point the Turtle towards certain coordinates Any help with this with be appreci… Read more Point A Python Turtle Towards Certain Coordinates

Multiprocessing - Map Over List, Killing Processes That Stall Above Timeout Limit

I have a list of elements that I want to modify using multiprocessing. The issue is that for some p… Read more Multiprocessing - Map Over List, Killing Processes That Stall Above Timeout Limit

How Can I Write A Sqlalchemy Query That Will Return All Descendants Of A Node In A Graph?

I am working on an application where my database objects often have multiple parents and multiple c… Read more How Can I Write A Sqlalchemy Query That Will Return All Descendants Of A Node In A Graph?

Normalizing .csv Labelled File Using Pandas In Python

I was normalizing the .csv (labelled) and i was following the answer given on this link: Normalize … Read more Normalizing .csv Labelled File Using Pandas In Python

Python Mysqldb Returns Question Marks

I am using the following code in python and it seems to be returning the 'Name' as question… Read more Python Mysqldb Returns Question Marks

Unable To Access Windows Controls Inside Pywinauto's Hwndwrapper (wrapper Class

I am new to python and pywinauto. Trying to set or get Text for TextBox (windows control) inside py… Read more Unable To Access Windows Controls Inside Pywinauto's Hwndwrapper (wrapper Class

Pandas - Compare Positive/negative Values

I have a dataframe 'df': x y 0 1 -1 1 -2 -3 2 3 4 3 4 5 4 9 6 I am t… Read more Pandas - Compare Positive/negative Values

How To Run Opencv Videocapture's Read Function Outside Multithreading Class?

I am using Nathancy's SO code to read two static videos from disk in parallel, leveraging multi… Read more How To Run Opencv Videocapture's Read Function Outside Multithreading Class?

Define Dtypes In Numpy Using A List?

I just am having a problem with NumPy dtypes. Essentially I'm trying to create a table that loo… Read more Define Dtypes In Numpy Using A List?

Make Http Call From Node To Python In Heroku Dyno

I've inherited a repository that contains both a NodeJS part and a Python part. The project str… Read more Make Http Call From Node To Python In Heroku Dyno

Insert Dictionary Within List To Database In Python

I have a list as below,I have trimmed the list.The data is by date.So for each date there are value… Read more Insert Dictionary Within List To Database In Python

Python: Modulenotfounderror: No Module Name 'mysql'

Trying to connect python to MySQL. Seem to be a lot on this issue but nothing seems to be working … Read more Python: Modulenotfounderror: No Module Name 'mysql'

Pyspark Dynamic Column Computation

Below is my spark data frame a b c 1 3 4 2 0 0 4 1 0 2 2 0 My output should be as below a b c 1 3 … Read more Pyspark Dynamic Column Computation

How To Convert Hex Str Into Int Array

I have strings of hex, for exemple '01ff6fee32785e366f710df10cc542B4' and I am trying to co… Read more How To Convert Hex Str Into Int Array

Azure Function - Unzip Password Protected File Using Python Code

I am trying to unzip password protected file which is stored on Azure Blob container. I want to ext… Read more Azure Function - Unzip Password Protected File Using Python Code

How To Load Data With Numpy With No Fixed Column Size

How can we load a text file with tab delimited values but with no fixed column size in the way that… Read more How To Load Data With Numpy With No Fixed Column Size

Python Isbn Program

I'm trying to calculate the check digit for an ISBN input on python. so far I have... def I… Read more Python Isbn Program

Python Escape Special Characters In Sys Argv

I have a script that takes sys.argv and the input may contain special characters (semicolon). I jus… Read more Python Escape Special Characters In Sys Argv

Matching String Contains X And Followed By Y

I want to evaluate to true if a string contains the word ‘except’ AND is followed by ‘xyz’. For exa… Read more Matching String Contains X And Followed By Y

Python Gdal: Pip Install --no-install Gdal Fails

I am trying to install GDAL in virtual environment based on the various solutions out there. Howeve… Read more Python Gdal: Pip Install --no-install Gdal Fails

How To Reorder The Columns Of A Csv?

How can I re-order the columns of a CSV file using Python? These are the first rows of a CSV file I… Read more How To Reorder The Columns Of A Csv?

Running A Python Script On All The Files In A Directory

I have a Python script that reads through a text csv file and creates a playlist file. However I ca… Read more Running A Python Script On All The Files In A Directory

Preserve Colored Output From Python Os.popen()

I'm using Python to build multiple VS solutions from a given directory using msbuild.exe. I on… Read more Preserve Colored Output From Python Os.popen()

How To Make A Git Merge By Pygit2

I try to merge branch into master: repo = pygit2.Repository('/path/to/repo/') branch = repo… Read more How To Make A Git Merge By Pygit2

Permanently Altering Sys.path ... Good Idea Or No?

I have to append sys.path in order for one of my scripts to work. As I will be doing this often, I… Read more Permanently Altering Sys.path ... Good Idea Or No?

Changing Python Path Under Mac Os For Applications Other Than The Terminal

I have a Python script that I'd like to be able to run with a minimum of fuss from the Finder o… Read more Changing Python Path Under Mac Os For Applications Other Than The Terminal

Dynamodb : The Provided Key Element Does Not Match The Schema

Is there a way to get an item depending on a field that is not the hashkey? Example My Table Users:… Read more Dynamodb : The Provided Key Element Does Not Match The Schema

Pymysql Return Error Sql Syntax

On py3, i use pymysql module for connecting to MySQL. i write function into Database() class like t… Read more Pymysql Return Error Sql Syntax

Start And Stop Python Turtle With Space Bar

I am trying to code a program that starts and stops a turtle by pressing the space bar. I got the c… Read more Start And Stop Python Turtle With Space Bar

Update On The Fly A Ttk.optionmenu Without Affecting Its Previous Callback/command

I am doing a large GUI with different ttk.OptionMenu widgets that need to be updated often dependin… Read more Update On The Fly A Ttk.optionmenu Without Affecting Its Previous Callback/command

Mock A Class With Tedious __init__

I have a class that actually connects to a service and does authentication and stuff, but all of th… Read more Mock A Class With Tedious __init__

Setting Up Crontab For My Django Application

I had an issue with setting up crontab for my Django application for a week and I have almost figur… Read more Setting Up Crontab For My Django Application

Slicing A Tensor Along A Dimension With Given Index

suppose I have a tensor: tensor = tf.constant( [[[0.05340263, 0.27248233, 0.49127685, 0.07926575,… Read more Slicing A Tensor Along A Dimension With Given Index

Pandas Stacked Bar Chart Duplicates Colors For Large Legends

I need to create a stacked bar chart with a large number (10 or so) categories. The problem is that… Read more Pandas Stacked Bar Chart Duplicates Colors For Large Legends

Python/numpy Floating-point Text Precision

Let's say I have some 32-bit and 64-bit floating point values: >>> import numpy as np … Read more Python/numpy Floating-point Text Precision

Twitter Stream Api Gives Jsondecodeerror("expecting Value", S, Err.value) From None

I am using the stream API of Twitter (through tweepy) to collect tweets matching certain criteria, … Read more Twitter Stream Api Gives Jsondecodeerror("expecting Value", S, Err.value) From None

Adding An Extra Column To The Combined/merged Excel Files

I am wondering how it is possible to add an extra column, to the combined/merged Excel files (see a… Read more Adding An Extra Column To The Combined/merged Excel Files

Python Converting Letter To Two-digit Number

little noob in Python here. I'm doing a small personal project and I would want to convert a si… Read more Python Converting Letter To Two-digit Number

Web Scraping Using Python And Beautiful Soup: Error "'page' Is Not Defined"

From a betting site, I want to collect the betting rates. After inspecting the page, I noticed that… Read more Web Scraping Using Python And Beautiful Soup: Error "'page' Is Not Defined"

Filtering Data For Multiple Years By Date Range Given By Months And Days In Pandas Dataframe

I have a data frame, df, in the following format for multiple years (6hourly). I need to filter the… Read more Filtering Data For Multiple Years By Date Range Given By Months And Days In Pandas Dataframe

Remove Specific Columns In Dataframe With Same Id On Date Condition

I have two datasets: One contains house energy certificates issued the last 10 years with an ID fo… Read more Remove Specific Columns In Dataframe With Same Id On Date Condition

Migration Admin.0001_initial Is Applied Before Its Dependency App.0001_initial On Database 'default'

I am trying to make custom made user model for my project in Django. My models.py: class myCustomeU… Read more Migration Admin.0001_initial Is Applied Before Its Dependency App.0001_initial On Database 'default'

Installing Django With Python 2.5 And Not With The Default Version Of Python

I have to install Django on my linux server where python 2.4 is available as the default installati… Read more Installing Django With Python 2.5 And Not With The Default Version Of Python

Why Does Scikit-learn Demand Different Data Shapes For Different Regressors?

I always find myself reshaping my data when I'm working with sklearn, and it's irritating a… Read more Why Does Scikit-learn Demand Different Data Shapes For Different Regressors?

How To Render Contents Of A Tag In Unicode In Beautifulsoup?

This is a soup from a WordPress post detail page: content = soup.body.find('div', id=re.com… Read more How To Render Contents Of A Tag In Unicode In Beautifulsoup?

Error 'nonetype' Object Has No Attribute '__dict__'

I have encoutered this error and its not letting me save the info in the form. The initial data is … Read more Error 'nonetype' Object Has No Attribute '__dict__'

Pandas: Need To Count The Number Of Values Of A Column Between 0 And 0.001 Then 0.001 And 0.002 Etc

My code so far looks like this: conn = psycopg2.connect('dbname=monty user=postgres host=localh… Read more Pandas: Need To Count The Number Of Values Of A Column Between 0 And 0.001 Then 0.001 And 0.002 Etc

Typeerror: Expected String Or Buffer Decoding Json In Flask

I'm working with a a distributed system where a php app sends a post request to a python flask … Read more Typeerror: Expected String Or Buffer Decoding Json In Flask

How Can I Draw A Multiple 3d-curves Picture By Python?

I want to draw two space curves in a same picture by Python. So, I use two Axes3D.plot to draw the … Read more How Can I Draw A Multiple 3d-curves Picture By Python?

Nosetests Is Capturing The Output Of My Print Statements. How To Circumvent This?

When I type $ nosetests -v mytest.py all my print outputs are captured when all tests pass. I want… Read more Nosetests Is Capturing The Output Of My Print Statements. How To Circumvent This?

Gtk +3 Textview Application Crashes

I have an application using a GtkTextView and GtkTextBuffer. Lines are added to the buffer with th… Read more Gtk +3 Textview Application Crashes

How To Decode `x-arr-clientcert` Header Using Python?

How do I decode the X-ARR-ClientCert header passed by Azure App Service to my Azure Function code? … Read more How To Decode `x-arr-clientcert` Header Using Python?

Is It Possible To Plot A Confusion Matrix With 90 Classes?

I wish to plot the confusion matrix for my classification model. It has about 20000 documents that … Read more Is It Possible To Plot A Confusion Matrix With 90 Classes?

How To Extract File Size From Youtube-dl In Python Script?

I'm new to python programming. I want to extract a video/audio size ( any youtube video) before… Read more How To Extract File Size From Youtube-dl In Python Script?