Skip to content Skip to sidebar Skip to footer
Showing posts from August, 2022

Inner Merge DataFrame With Identical Column Names And Apply Aggregate Function

I want to inner merge two dataFrames that both have some columns with same name. On the columns wit… Read more Inner Merge DataFrame With Identical Column Names And Apply Aggregate Function

Draw Graph Of Encoded Bit Rate Of Video Vs Play Location

I am trying to measure the variation in the bandwidth required when a video is played over the netw… Read more Draw Graph Of Encoded Bit Rate Of Video Vs Play Location

When To Use A List Comprehension Vs A For Loop

Is there a general rule for when a list comprehension is preferred over a for loop? For example: A … Read more When To Use A List Comprehension Vs A For Loop

Adding Image To Tkinter

I have added a image file to my code in tkinter but it basically fills my the whole frame so if its… Read more Adding Image To Tkinter

Matplotlib Colorbar Moves Second X Axis

I'm trying to add a second x axis to the top of a plot using twiny. If I make a simple scatter … Read more Matplotlib Colorbar Moves Second X Axis

Running Google Colab Every Day At A Specific Time

I recently have built a Python program that runs on Google Colaboratory, I need to run the program … Read more Running Google Colab Every Day At A Specific Time

Syntax Error When Attempting To Insert Data Into Postgresql

I am attempting to insert parsed dta data into a postgresql database with each row being a separate… Read more Syntax Error When Attempting To Insert Data Into Postgresql

How To Get A RadioButton To Work

Im trying to get my RadioButton to work and return something. Well to be a bit clearer I want it to… Read more How To Get A RadioButton To Work

Why Numpy Treats A+=b And A=a+b Differently

Is the following numpy behavior intentional or is it a bug? from numpy import * a = arange(5) a =… Read more Why Numpy Treats A+=b And A=a+b Differently

SQLAlchemy Show Me That "AttributeError: Type Object 'User' Has No Attribute 'columns'"

I am building a small project use python+Flask+SQLAlchemy, I make a model file following: #########… Read more SQLAlchemy Show Me That "AttributeError: Type Object 'User' Has No Attribute 'columns'"

Remove Duplicates In Two-dimensional Array While Maintaining Sequence

I have found a lot of threads on removing duplicates in arrays but none for my specific use-case. I… Read more Remove Duplicates In Two-dimensional Array While Maintaining Sequence

What Is The Best Strategy To Extract Information From A JIRA Issue?

I'm developing FreedomSponsors - a crowdfunding platform for open source projects. I want to im… Read more What Is The Best Strategy To Extract Information From A JIRA Issue?

How To Expand A Df By Different Dict As Columns?

I have a df with different dicts as entries in a column, in my case column 'information'. I… Read more How To Expand A Df By Different Dict As Columns?

What Does Python Return When We Return With Logical Operator?

I was reading someone else's code and he had something like this: return val1 and val2 I trie… Read more What Does Python Return When We Return With Logical Operator?

SQLAlchemy - Adding OR Condition With Different Filter

For the SQL statement, I want to do an OR filter only if the input variable is not None. E.g # inpu… Read more SQLAlchemy - Adding OR Condition With Different Filter

Start_urls In Scrapy

I am trying to fetch some information from this website: http://www.go-on.fi/tyopaikat. As you can … Read more Start_urls In Scrapy

XPATH - Html With A Lot Of Children

Consider the html in the page variable. How do I access the tds ? I want to access them like xpath… Read more XPATH - Html With A Lot Of Children

Download Video From A Direct URL With Python

I want to download videos with python. I tried using youtube-dl, but the site I wish to download vi… Read more Download Video From A Direct URL With Python

Read Pdf Object From S3

I am trying to create a lambda function that will access a pdf form uploaded to s3 and strip out th… Read more Read Pdf Object From S3

Python/Numpy: Vectorizing Repeated Row Insertion In A 2D Array

Is it possible to vectorize the insertion of rows? I have a large 2D numpy array arr (below) and a … Read more Python/Numpy: Vectorizing Repeated Row Insertion In A 2D Array

Subtract 2 Numpy Arrays With Condition

I have two Numpy arrays which look like this: a = [[ [1,2,3], [4,5,6] ], [ [7,8,9], [10,11,12… Read more Subtract 2 Numpy Arrays With Condition

Pass Command Line Arguments To Python 2.7.6 Package Application Using C API

I'm new to python and now I need to call a python 2.7.6 program using its C API. The python pro… Read more Pass Command Line Arguments To Python 2.7.6 Package Application Using C API

How To Implement A Counter Using A Lambda?

Can I implement a counter using a lambda function in python or some expression more pythonic? Here … Read more How To Implement A Counter Using A Lambda?

Pass User Input From Child To Parent Window Python Tkinter

I'm pretty new to Python, and even more new to tkinter. I've searched for an answer to this… Read more Pass User Input From Child To Parent Window Python Tkinter

Vectorizing Outer Loop Of Euclidean Distance Using Numpy On Multi-dimensional Data

I have a 2D matrix of values. Each row is a data point. data = np.array( [[2, 2, 3], [4, 2, … Read more Vectorizing Outer Loop Of Euclidean Distance Using Numpy On Multi-dimensional Data

How Do I Add A Custom Field To Logstash/kibana?

I am using python-logstash in order to write to logstash. It offers the option to add extra fields … Read more How Do I Add A Custom Field To Logstash/kibana?

Python Function Composition (max Recursion Depth Error, Scope?)

What is wrong with this function? It seems like a scope error (although I thought I had fixed that … Read more Python Function Composition (max Recursion Depth Error, Scope?)