Python Tutorial for Beginners

Suppose I have a dataframe like this d = {'User':['A', 'A', 'B'], … Read more Using `.groupby().apply()` Instead Of `.groupby().agg()`

So I am trying to change a bunch of list items by a random percentage using a for loop. import rand… Read more Python 3: Lists Dont Change Their Values

What library should I use to connect to odbc from python on windows? Is there a good alternative fo… Read more Common Ways To Connect To Odbc From Python On Windows?

I am working on an application which is based on GAE with python 2.7.13. What I want to do is that … Read more How To Do Async Api Requests In A Gae Application?

I have an image like this: after I applied some processings e.g. cv2.Canny(), it looks like this n… Read more How To Fill The Hollow Lines Opencv

I want to send the REST request to the end-point. import requests param1 = 'abc' param2 = … Read more Backend Returns (typeerror: String Indices Must Be Integers)

I am using python mosquitto(paho) library. I got the problem of Unexpected disconnection. I found c… Read more Mosquitto Unexpected Disconnection

I have a dataframe with about 100 columns that looks like this: Id Economics-1 English-107 En… Read more Sum Values Of Columns Starting With The Same String In Pandas Dataframe

I'm successfully calculating the mask of an image using U2NET as seen below: However, as can b… Read more Remove Unwanted Parts Of Mask Image

Okay, so my initial idea is to make a line plot in plotly and color the line with one color after c… Read more Plotly: Markers Disappear When (n) Points Are Plotted

I have a list that contains dictionaries, each of them have the same keys and different values, How… Read more Return A List Of Values Of Dictionaries Inside A List

For a DB class with the following init method: class DB: def __init__(self, dbprops): s… Read more With Statement In Python Is Returning None Object Even Though __init__ Method Works

I want to perform image translation by a certain amount (shift the image vertically and horizontall… Read more Image Translation Using Numpy

Experts i need to train a model with many data sets saved in the directories train_data and valid_d… Read more How To Train A Deep Learning Model With Many Data Sets Present Inside The Directories

I am attempting to convert a project from a Python 3 venv to Conda. However, it doesn't work wi… Read more Error Installing Pyzbar With Conda On Mac Os X

I have the following PySpark DataFrame: id col1 col2 A 2 3 A 2 4 A 4 6 … Read more How To Stack Two Columns Into A Single One In Pyspark?

I'm getting this error when running python manage.py runserver ?: (urls.W005) URL namespace &#… Read more ?: (urls.w005) Url Namespace 'main' Isn't Unique. You May Not Be Able To Reverse All Urls In This Namespace

I am simply trying to write to a csv. However I have two separate for-statements, therefore the dat… Read more Python: Scrapy Csv Exports Incorrectly?

I have a large set of datetime strings and it can be safely assumed that they're all identicall… Read more Guessing Date Format For Many Identically-formatted Dates In Python

I have the following string list. Then, I want to sort it by a number in each element. sorted faile… Read more Sort String List By A Number In String?

I am writing a Python 2.7 script using Requests to automate access to a website that sets two cooki… Read more Requests - Inability To Handle Two Cookies With Same Name, Different Domain

I have a question similar to the one discussed here Concatenating dictionaries of numpy arrays (avo… Read more Concatenating Dictionaries Of Numpy Arrays Of Different Lengths (avoiding Manual Loops If Possible)

i have this program class loginWindow(): def __init__(self, master): self.master = mas… Read more Two Windows: First Login After That Main Program

I am currently building an image from alpine:3.7. There are two packages that I am having problems… Read more Error When Installing Python3 Packages In Alpine

I am trying to draw multiple seaborn distplot in a single window. I know how to generate a density … Read more How To Draw Multiple Seaborn `distplot` In A Single Window?

I have data sets that I would like to fit to two equations: y1 = a1 + a2 * T / 2 + a3 * T^2 / 3 + a… Read more How Do I Optimize And Find The Coefficients For Two Equations Simultaneously In Python 2.7?

I would like to convert string date format to timestamp with microseconds I try the following but … Read more Python: Converting String To Timestamp With Microseconds

I have a look-up object, specifically a pre-trained word2vec model from gensim.models.keyedvectors.… Read more Shared Memory Among Processes For Pre-trained Word2vec Model?

prompt = '>>' from tkinter import * root = Tk() userName = Entry() myLabel = Label(r… Read more Typeerror: Grid_configure() Missing 1 Required Positional Argument: 'self'

I am following the flowers tutorials for re-training inception on google cloud ml. I can run the tu… Read more Re-training Inception Google Cloud Stuck At Global Step 0

As the title indicates, I am trying to get the price of a given security from TWS API and use it as… Read more Return Price As An Object/variable Using Interactive Brokers Tws Api - Python

This is a short python script: import matplotlib.pyplot as plt import networkx as nx from networkx.… Read more How To Fix Modulenotfounderror: No Module Named 'networkx.drawing'; 'networkx' Is Not A Package

I'm using answers field in form for just test purpose to see if it is returning the selected id… Read more Select A Valid Choice. 6da87c51321849bdb7da80990fdab19b Is Not One Of The Available Choices

Using pandas to read in large tab delimited file df = pd.read_csv(file_path, sep='\t', enco… Read more Pandas Read_csv Fix Columns To Read Data With Newline Characters In Data

For a school project I am making a hangman game in Python. Right now my code picks a word from a di… Read more Keeping The Data Of A Variable Between Runs Of Code

A previous stackoverflow question explains how to sort a list of strings alpha-numerically. I woul… Read more Naturally Sort A List Of Alpha-numeric Tuples By The Tuple's First Element In Python

Assume I have a 1d array, what I want is to sample with a moving window and within the window divid… Read more How To Sample A Numpy Array And Perform Computation On Each Sample Efficiently?

In Python: what is a 'qualified name' or 'unqualified name'? I've seen it menti… Read more What Is A Qualified/unqualified Name In Python?

I am working on a discord.py economy bot I just get this error. I try this -----> Discord.py get… Read more Economy Bot | Discord.py Rewrite | Leaderboard Error - Attributeerror: 'nonetype' Object Has No Attribute 'name'

This problem is taken from codingbat. Given two int values, return their sum. Unless the two values… Read more Python One-liner If Else Statement

I have a python script which is used to interact with cassandra with datastax python driver It has … Read more Cassandra Python Driver Operationtimedout Issue

I am coding the logic for a tic tac toe game. I have already checked for all the winning conditions… Read more Python Tic Tac Toe Winning Conditons

Title pretty much explains everything. Do you know if there exists an equivalent to tf.set_random_s… Read more `tf.set_random_seed()` Equivalent For Operations Seed?

I have built a model using this as a base. And the train portion from this code. This model does no… Read more Tensorflow Cnn Model Not Training? Constant Loss And Accuracy

When I try to build a minimal Cython file test.pyx with Python 3.3 (Anaconda 3) under windows 7, I … Read more Building Minimal Cython File With Python 3.3 (anaconda) Under Windows 7

Why can't I define new functions when I run pdb? For example take myscript.py: #!/gpfs0/export… Read more How To Define A New Function In Pdb

I am attempting to pull text from a few hundred JPGs that contain information on capital punishment… Read more Removing Horizontal Underlines

class A(object): aalist = [] ai = 0 def __init__(self): self.ablist = list() de… Read more The List Updated Within A Class

I'm trying to wrap my head around using args and kwargs in Python 3 (Python 3.7.0) but I'm … Read more How To Return Default Values With *args, And **kwargs In Function Signature

I have a problem with connecting to a remote database using SSH tunnel (now I'm trying with Par… Read more Connecting To Remote Postgresql Database Over Ssh Tunnel Using Python

I'm using the latest Flask/Werkzeug (Flask 0.9) client-side sessions to persist information bet… Read more Flask Session Forgets Entry Between Requests

I have the following CSV (sample) id timestamp routeid creationdate parameter… Read more Converting Complex Rdd To A Flatten Rdd With Pyspark

Is there anyway to set the variables of all instances of a class at the same time? I've got a s… Read more Changing Variables In Multiple Python Instances

I'm trying to define a gradient method for my custom TF operation. Most of the solutions I have… Read more Using Op Inputs When Defining Custom Gradients In Tensorflow

I have a rather gnarly bit of code that must more-or-less randomly generate a bunch of percentages,… Read more Rounding Floats So That They Sum To Precisely 1

I have a friend of mine tutoring me in learning Python and he gave me this project where a user wil… Read more In Python Word Search, Searching Diagonally, Printing Result Of Where Word Starts And Ends