Python Playground

I wonder how can I draw elliptical orbit by using the equation ay2 + bxy + cx + dy + e = x2 ? I hav… Read more Drawing Elliptical Orbit In Python (using Numpy, Matplotlib)

Given a list of list of int, str, I need to find a way to sort this from highest to lowest, without… Read more Python How To Sort A List Of List Of Int, Str

My program for creating a Mandelbrot set has a bug: whenever the pen changes colors, and every 42nd… Read more Why Is Turtle Lightening Pixels?

I want to find word stems with Wordnet. Does wordnet have a function for stemming? I use this imp… Read more Can Wordnetlemmatizer In Nltk Stem Words?

I would like to expose a model built using sklearn.linear_model.SGDClassifier through a web API. Ev… Read more Is The Predict_proba Method Of Scikit Learn's Sgdclassifier Thread Safe?

I'm just trying a simple pip3.6 install numpy, and I get the following error: distutils.errors.… Read more Python 3.6: Trying To Pip Install Numpy

Say I have 2 functions. I want func2 to return func1 UNLESS func1 returns None, in which case func2… Read more What Is The Most Pythonic Way To Conditionally Return A Function

Im trying to detect objects in realtime using tensorflow. . I ran jupyter notebook in object_detect… Read more Object Detection Realtime Using Tensorflow

Here is the original code I copied from Make Games with Python.2-Raspberry Pi, page 33: import pyga… Read more Is There Anything Wrong With The Python Code Itself?

So I've got a problem. I installed Anaconda with Python 3.5.2 and when I go for cmd>python t… Read more Set A Python Indent In Anaconda

How can I randomly merge, join or concat pandas data frames by row? Suppose I have four data frames… Read more Randomly Concat Data Frames By Row

Since the new API came out my PHP upload script does not work (Developers key etc) and I have tried… Read more Api V3 Youtube Upload

I have an image represented by a numpy.array matrix nxm of triples (r,g,b) and I want to convert it… Read more Converting An Image To Grayscale Using Numpy

I wrote a small scrapy spider. Following is my code class ElectronicsSpider(scrapy.Spider): nam… Read more Reading Settings In Spider Scrapy

The NLTK documentation is rather poor in this integration. The steps I followed were: Download htt… Read more Setting Nltk With Stanford Nlp (both Stanfordnertagger And Stanfordpostagger) For Spanish

I'm trying to click on an element (radio button) using Selenium (in Python), I can't disclo… Read more Element Not Being Clicked Even Though It Is Found Using Selenium

I'm looking for a way to clean strings from their longest repeating pattern. I have a list of a… Read more Find A Repeating Pattern In A List Of Strings

I am trying to write data to a file in a non-roman script using python tkinter. I want to write dat… Read more How To Write Data To A File In Hindi Language?

I've two xBee Pro S2C module. I'm trying to send a image from Windows PC to Raspberry Pi wi… Read more File Transfer Pc To Raspberry Pi (with Xbee)

I need to filter some lines of a .csv file: 2017/06/07 10:42:35,THREAT,url,192.168.1.100,52.25.xxx.… Read more How To Filter Lines By Column In Python

I have a dictionary with multiple values per key and each value has two elements (possibly more). I… Read more Python How To Delete A Specific Value From A Dictionary Key With Multiple Values?

I am trying to figure out whether APScheduler is the tool for my project's needs. I can add a j… Read more How To Interpret List Of Jobs Returned From Get_jobs In Apscheduler?

I have this (which works): def make_key(x): return '{0}/{1}/{2}'.format(x.f1, x.f2, x.f… Read more More Pythonic Way To Write This Block (and Elimnate: Valueerror: Dictionary Update Sequence Element #0 Has Length 1; 2 Is Required)

Iam using Python3.6 with IMAP4 module.Iam trying to copy emails from 'Inbox' to 'mytest… Read more Imap Copy Command Not Working On Inbox - Python

I have a bit of an issue here. I have a Python script which calls binaries compiled from C++. The… Read more Controlling C++ Output From Python Script

I have a pandas dataframe containing sports matches: Winner Loser A B B … Read more Pandas Dataframe Aggregate Calculation

I am working on a project that revolves around multiprecision 'complex' numbers, specifical… Read more Multiprecision Python Library That Plays Well With Boost::multiprecision Or Other Options?

In parsing an HTML response to extract data with Python 3.4 on Kubuntu 15.10 in the Bash CLI, using… Read more Converting Unicode Sequences To A String In Python 3

I am trying to add images to a PowerPoint slide using pptx. img_path = 'test.png' prs = Pr… Read more Python-pptx Slide.shapes.add_picture() Not Recognizing Image Files

Setting I am currently trying to calcualte the image gradients with sobel filters. At first I used… Read more Difference Between Scipy And Numpy Sobel Gradient Calculation

Let us say we have the following table and I want to find max and min value for every row for a se… Read more How To Select Max And Min Value In A Row For Selected Columns

I am generating json file using python script, but the problem after for loop it is only picking up… Read more Dynamically Generate Json File Keys And Write On S3

as follows I have a 2-D list/array list1 = [[1,2],[3,4]] list2 = [[3,4],[5,6]] how can I use the f… Read more Python 2-d Array Get The Function As Np.unique Or Union1d

I'm trying to write both values and display formatting to a smartsheet. I access the sheet with… Read more Updating Cell Format Using Smartsheet Api (python Sdk)

I'm running PuLP on OS X via a iPython notebook and Python 2.7. glpk is installed using brew in… Read more Pulpsolvererror: Pulp: Error While Trying To Execute Glpsol In Python 2.7

I am trying to install scipy from a Dockerfile and I cannot for the life of me figure out how. Here… Read more Can't Install Scipy

Can you help me on how to make this script work. For Defrag import os; defragmentation=os.popen(… Read more Disk Defrag And Disk Clean Up Using Python Script

current_datetime = datetime.now(tz) next_hour = datetime(current_datetime.year, current_datetime.mo… Read more How Do I Find The Next 7am In A Timezone

In my flask sqlalchemy based app, I have a model like this: class Foo(object): start_date = db.… Read more Sqlalchemy Doesn't Seem To Like __getattr__()

So, I'm using Wand Python Library to mess around with some images. I just want it to look at an… Read more Change Color Of Specific Pixels [wand]

Is there a 1-liner equivalent (using list comprehension) for the following: a = [] for i in range(6… Read more List Comprehension Version Of "extend"

I have created a new project in Eclipse, PyDev. If I were in VS2010, I would mark a project as st… Read more Is There Such A Thing As Startup File In Pydev Under Eclipse?

can someone tell me which second parameter I should pass to tracker.init() after detection a pedest… Read more How To Use Opencv Tracker Parameters Without Selecting A Roi

I am supposed to count the frequency of all the key values of dictionary 'd' across all the… Read more How To Find Frequency Of The Keys In A Dictionary Across Multiple Text Files?

I have posted a similar question earlier, however my understanding was that I was dealing with CSV … Read more Python: Looking To Capture A Particular Cell Value From Individual Csv Files In A Directory And Then List The Values In A New Excel File

I'm using pyzmq library with pub/sub pattern. I have some quick ZMQ publisher by .connect() met… Read more How To Have Limited Zmq (zeromq - Pyzmq) Queue Buffer Size In Python?

Return the sum of the numbers in the array, except ignore sections of numbers starting with a 6 and… Read more Looking For A More Elegant Solution To This

I'm trying to use intents in my bot but when running the following code: import discord from di… Read more Discord.py: Nameerror: Name 'intents' Is Not Defined

I have been messing around in python to see if I could 'mix' two pictures together. What I … Read more Valueerror: Images Do Not Match When Blending Pictures In Pil

I have the following code in my urls.py: urlpatterns = patterns('', (r'^news/',… Read more Django Urlpattern "didn't Match"

Context: I have an app that serves interactive graphs and data analysis. In order to calculate plot… Read more How To Restart Google App Engine Standard Service

Executing the following script... import socket import sys … Read more Python 'subprocess' Calledprocesserror: Command '[...]' Returned Non-zero Exit Status 1

Here is the Black (Black Scholes less the dividend) option pricing model for options on futures wri… Read more Cython Parallel Openmp For Black Scholes With Numpy Integrated, Serial Code 10m Options 3.5s, Parallel?

I am trying to grab and parse multiple URLs using urllib and BeautifulSoup, but I get the following… Read more Attributeerror: 'list' Object Has No Attribute 'timeout' - Trying To Process Multiple Urls With Beautifulsoup

I would like to solve an instance of minimum set cover. As one possibility, is there some way of fo… Read more Solving Minimum Set Cover Using Available Libraries

We have an app that is built with openframeworks. When started, it first opens a console window tha… Read more How To Bring A Window Into Focus If It Does Not Have A Title?

As the title says, I wanna create a real-time countdown timer in python So far, I have tried this i… Read more Real Time Countdown Timer In Python

I'm working on a assignment and I need to replace Alice with my name. Here is the program, for … Read more Replace A Name In A String In Python

I’m getting: 'HTTP/1.1 400 Bad Request\r\n' and I don’t get why. It looks like it authenti… Read more Dealing With Bad Request

I want to directly upload/download files to Amazon S3 from python clients, running in some users ma… Read more Remote Signing Of Boto Request For Python Client

I have a list that has some specific elements in it. I would like to split that list into 'sub… Read more Splitting A List By Matching A Regex To An Element

So I just downloaded nltk module from the website and installed it. But when I run import nltk on t… Read more Import Nltk Does Not Work

I have measurements from control and treatment groups at sequential times, and I would like to plot… Read more Plot Sequential Box Plots In Matplotlib (control And Treatment Groups)

I have an application which, for convenience (I am reusing existing code) has been split into two d… Read more Triggering Events In Twisted From Another Thread

This question is on Augmented Dickey–Fuller test implementation in statsmodels.tsa.stattools python… Read more How Exactly Bic In Augmented Dickey–fuller Test Work In Python?

so I have a python script which takes the filename as a command argument and processes that file. H… Read more Modify Python Script To Run On Every File In A Directory

I'm working on a Python (using 2.7) project to search through excel files for a UNC path for a … Read more Openpyxl + How Can I Search For Content In A Cell In Excel, And If The Content Matches The Search Criteria Update The Content?

In virtualenv defaulting python3: First I removed my app myapp from project. And I created a new fo… Read more After Installing App Templatedoesnotexist Error