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Showing posts from November, 2023

How To Use Pandas To Add New Column Using If Statement?

Could you kindly help me to write the following concept in python pandas, I have the following data… Read more How To Use Pandas To Add New Column Using If Statement?

Pandas Dataframe Count Unique List

If the type of a column in dataframe is int, float or string, we can get its unique values with col… Read more Pandas Dataframe Count Unique List

Incorrect Rectangle Location In Matplotlib

I'm making a plot with bars and I'm trying to find their absolute location (in pixels) on t… Read more Incorrect Rectangle Location In Matplotlib

How To Install Cryptography On Ubuntu 18.04 Bionic?

I keep getting gcc errors when trying to install the python library cryptography. The main error i… Read more How To Install Cryptography On Ubuntu 18.04 Bionic?

How Can I Change The Value Of A Masked Array In Numpy?

In my code, at some point I try to modify a value of a masked array, yet python seems to ignore thi… Read more How Can I Change The Value Of A Masked Array In Numpy?

Filenotfounderror Python Script

I am trying to run a python script, .py in the windows command prompt. I drag the script from my f… Read more Filenotfounderror Python Script

Compute Dataframe Columns From A String Formula In Variables?

I use an excel file in which I determine the names of sensor, and a formula allowing me to create a… Read more Compute Dataframe Columns From A String Formula In Variables?

Answer Error, Only Outputting Zero

I am coding in python and I cannot seem to figure out why when the amount of tickets sold is entere… Read more Answer Error, Only Outputting Zero

Installing Natural Language Toolkit Data

I have problem with installing natural language toolkit for python 2.7. I have NLTK already install… Read more Installing Natural Language Toolkit Data

Python File Seek Skips Lines

I have a file with content: 0x11111111 0x22222222 0x33333333 0x44444444 And I'm reading it lin… Read more Python File Seek Skips Lines

Why Is Python Strict About Indentation?

This question is coming from this Stack Overflow question. Why is Python is designed to use correct… Read more Why Is Python Strict About Indentation?

Can A Class Variable Be An Instance Of The Class?

Can a class variable of say, class Foo be a Foo object itself? For example, I'm trying to build… Read more Can A Class Variable Be An Instance Of The Class?

How To Calculate Day's Difference Between Successive Pandas Dataframe Rows With Condition

I have a pandas dataframe like following.. item_id date 101 2016-01-05 101 2016-… Read more How To Calculate Day's Difference Between Successive Pandas Dataframe Rows With Condition

How Can I Smooth The Segmented Blob?

I am getting some flickers (sharp lines) along with the segmented blob. How can I reduce them to ma… Read more How Can I Smooth The Segmented Blob?

How To Share Variables Across Python Modules When Getter And Setter Methods Are Required

How can I share variables across different modules of my Python project if I need these variables t… Read more How To Share Variables Across Python Modules When Getter And Setter Methods Are Required

Identify Unique Combinations Of Values In Columns, Sum Another Column, And Count Number Of Appearances In Pandas

I have a DataFrame like so: import pandas as pd d = {'param_1': [1.0, 2.0, 1.0, 1.0, 3.0, … Read more Identify Unique Combinations Of Values In Columns, Sum Another Column, And Count Number Of Appearances In Pandas

How To Write Mp4 Video File With H264 Codec?

On OSX I can record from my webcam and write a video file with the following simple script: import … Read more How To Write Mp4 Video File With H264 Codec?

Python: Respond To Command Line Prompts

I am trying to use Python to interact with another program via the command line. The main problem … Read more Python: Respond To Command Line Prompts

How To Use The Dir/s Command In Python?

Background I use the command dir/s in batch files all the time. But, I am unable to call this using… Read more How To Use The Dir/s Command In Python?

Output Sorted Python Dict Within Django Template

I got a python dict, that looks like the following (Important informations were replaced with '… Read more Output Sorted Python Dict Within Django Template

Csv Exports - Ordering Of Columns Using Scrapy Crawl -o Output.csv

Is there a way to specify the order of the columns in a CSV output using the -o parameter? It seems… Read more Csv Exports - Ordering Of Columns Using Scrapy Crawl -o Output.csv

How To Extract Specific Numbers From Numpy Arrays Based On The Repetition Of Numbers

I have two numpy arrays and want to extract some specific parts of them. These arrays are: arr_A=np… Read more How To Extract Specific Numbers From Numpy Arrays Based On The Repetition Of Numbers

Opengl Rotation From Velocity Vector

This should be easy, but I've been all over trying to find a simple explanation that I can gras… Read more Opengl Rotation From Velocity Vector

Regex Help - Python - Extract All Image Url From Css

I am trying to extract all the image (.jpg, .png, .gif) uri's from css files. Sample css .block… Read more Regex Help - Python - Extract All Image Url From Css

Can't Pip Microsoft Azure-cognitiveservices-speech?

Following the guide here to install the microsoft azure text to speech SDK: https://docs.microsoft.… Read more Can't Pip Microsoft Azure-cognitiveservices-speech?

Can't Use Pyinstaller

I've installed PyInstaller through pip on Python 3.5.2 but I can't get it to work. After ru… Read more Can't Use Pyinstaller

Filtering Pandas Dataframe By Difference Of Adjacent Rows

I have a dataframe indexed by datetime. I want to filter out rows based on the difference between t… Read more Filtering Pandas Dataframe By Difference Of Adjacent Rows

How Can List[n] Point To List[0]? Getting Items Not In Sequence

I'm not sure about the term of this technique. I want to create a list where if I try to access… Read more How Can List[n] Point To List[0]? Getting Items Not In Sequence

Send Aiohttp Post Request With Headers Through Proxy Connection

What I have now (Python 3.4): r = yield from aiohttp.request('post', URL, params=None, data… Read more Send Aiohttp Post Request With Headers Through Proxy Connection

Multi Level Pandas Groupby

I need to maintain position of 'each scrip per team per account'. So I think pandas groupby… Read more Multi Level Pandas Groupby

Python Opencv - Videocapture.release() Won't Work In Linux

I'm using OpenCV 2.4.9 and Python 2.7.11. I've written a small program that shows the camer… Read more Python Opencv - Videocapture.release() Won't Work In Linux

Qtablewidget Integer

I am trying to insert and display integers in my QTableWidget. They don't display. It works i… Read more Qtablewidget Integer

Emacs C-c C-c For Python Code

I'm new to using emacs as an IDE to python. I have pymode and Ropemacs active. My understandi… Read more Emacs C-c C-c For Python Code

Python Kivy Is Printing Numbers While Importing It

I just installed Kivy in my virtualenv I installed it using pip install https://github.com/kivy/k… Read more Python Kivy Is Printing Numbers While Importing It

Reading Input Files And Writing Into Output Files - Python

I have an input file (input.txt) with the following information: Number of students (first line) N… Read more Reading Input Files And Writing Into Output Files - Python

I Am Trying To Manipulate The Pixel Values Without Clipping Them

I have an image which has a max pixel value - 287.4976094062538 and min pixel value - -41.082841881… Read more I Am Trying To Manipulate The Pixel Values Without Clipping Them

Adding Columns After Comparing Values In 2 Dataframes With Different Lengths

I referenced another stackoverflow, but the value came out weird and I asked again. like compare 2 … Read more Adding Columns After Comparing Values In 2 Dataframes With Different Lengths

How To Model A Contract Database (with Several Buyers Or Sellers) Using Gae Datastore

I'm new to programming and I'm trying to grasp the concept of the GAE datastore. I'm tr… Read more How To Model A Contract Database (with Several Buyers Or Sellers) Using Gae Datastore

Python : Number Of Characters In Text File

I am trying to get the number of characters in a file. But when I use 'len' on an imported … Read more Python : Number Of Characters In Text File

How To Append To A Table In Bigquery Using Python Bigquery Api

I've been able to append/create a table from a Pandas dataframe using the pandas-gbq package. I… Read more How To Append To A Table In Bigquery Using Python Bigquery Api

Using .config In Tkinter

Beginner here Having trouble getting a label to update on a simple countdown app, Can anyone explai… Read more Using .config In Tkinter

Django Python Has Stopped Working When Trying To Run Server After Closing It Once

python manage.py runserver works fine the first time, but after closing it with ctrl+c, I can'… Read more Django Python Has Stopped Working When Trying To Run Server After Closing It Once

Python Asyncio - Server Able To Receive Multi-commands In Different Times And Processing It

I am building a client/server communication by using the AsyncIO library in Python. Now I'm try… Read more Python Asyncio - Server Able To Receive Multi-commands In Different Times And Processing It

How To Get Largest Possible Precision? (python - Decimal)

I'm using the Decimal class for operations that requires precision. I would like to use 'la… Read more How To Get Largest Possible Precision? (python - Decimal)

Kernel Error After Updating To Spyder 4.1

I updated spyder to 4.1 in anaconda through (conda update spyder), and it doesn't work unless … Read more Kernel Error After Updating To Spyder 4.1

Min And Max Functions Returns Incorrect Values

I am using python 2.7 to find highest and lowest values in an text file. The text file is simply f… Read more Min And Max Functions Returns Incorrect Values

How To Pickle Weakref In Python Tensorflow-keras?

I have written a voice recognition python , i have used tenserflow keras model. When i am giving th… Read more How To Pickle Weakref In Python Tensorflow-keras?

How To Create All Combinations Column Wise For Multiple Variables In Pandas?

For a given range for n variables. I have taken n=3 as an example. A : [1,3] B: [5,10,12] C: [100,… Read more How To Create All Combinations Column Wise For Multiple Variables In Pandas?

Can I Zip All The Python Standard Libs And The Python Still Able To Import It?

I read a tutorial that you can compile all the libs files to .pyc, then pack all the .pyc as a zipp… Read more Can I Zip All The Python Standard Libs And The Python Still Able To Import It?

Python Function Parameter As A Global Variable

I have written the following function, it takes in a variable input_name. The user then inputs some… Read more Python Function Parameter As A Global Variable

Installing Pip On Python 2.7.8 On Windows

I am trying to install the module pip for python 2.7.8, the one that arcGIS installs for you. I am … Read more Installing Pip On Python 2.7.8 On Windows

Classification Metrics Can't Handle A Mix Of Continuous-multioutput And Multi-label-indicator Targets

I have created an ANN with numerical inputs and a single categorical output which is one hot encode… Read more Classification Metrics Can't Handle A Mix Of Continuous-multioutput And Multi-label-indicator Targets

When Saving Turtle Graphics To An .eps File, The Background Color Shows On The Screen But Is Not Saved In The .eps File

I am new to Python and have been working with the turtle module as a way of learning the language. … Read more When Saving Turtle Graphics To An .eps File, The Background Color Shows On The Screen But Is Not Saved In The .eps File

Can Not Import Scrypt From Hashlib

I try to use import scrypt from the standard libary. Both on my local machine (ubuntu 16.04) and th… Read more Can Not Import Scrypt From Hashlib

Opencv - Adjusting Photo With Skew Angle (tilt)

I have a camera pointing at a Zen Garden from above. However, the camera is fixed on the side rathe… Read more Opencv - Adjusting Photo With Skew Angle (tilt)

How To Read Python List In Javascript [in A Django Template]

I'm programming in oTree (which is a Django based environment for social experiments) and I hav… Read more How To Read Python List In Javascript [in A Django Template]

How To Pass Variable From Python To Javascript

I have a server in python to process an id (the id of youtube video), this is the code: class Messa… Read more How To Pass Variable From Python To Javascript

Sorting Within A Pandas Group Without Changing Group Position

I am trying to sort within a pandas group without actually changing the group position in the Dataf… Read more Sorting Within A Pandas Group Without Changing Group Position