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I'm trying to do a where clause in reverse order with SQLAlchemy ORM. So instead of Table.query… Read more How Do I Express "where 'value' Like Column" In Sqlalchemy?

I wrote a script that has multiple threads (created with threading.Thread) fetching URLs from a Que… Read more Python - What Is Queue.task_done() Used For?

I am trying to wait for 'Agree&Continue' button to showup and interact with .click() Th… Read more How Do I Select A Changed Button In This Case On Selenium

I'm learning about virtualenv and mod_wsgi and these are my favourite articles so far: https://… Read more Can I Run Apache, Mod_wsgi And Mongodb Within Virtualenv?

how to lock the button after pressing on it, until the other button is pressed or until I closed t… Read more How To Lock Tkinter Button After Pressing On It

I am getting the following unexpected result when I do arithmetic with small numbers in Python: >… Read more Python Arithmetic With Small Numbers

I use python ftplib to connect to a ftp server which is running on active mode; That means the serv… Read more How Can I Specify The Client's Data Port For A Ftp Server In Active Mode?

My code currently consists of loading the image, which is successful and I don't believe has an… Read more Python 3: I Am Trying To Find Find All Green Pixels In An Image By Traversing All Pixels Using An Np.array, But Can't Get Around Index Error

I am trying to group-by the values in my 'value_1' column. But my last column is made up of… Read more Groupby And Append Lists And Strings

I created a window: root = Tk() and removed the title bar: root.attributes('-type', 's… Read more Tkinter, Linux: How To View Window In Windows Task Bar Which Has No Title Bar?

I'm trying to extract 3 columns in a large excel spreadsheet and export it to CSV format. I hav… Read more Selecting Multiple Specific Columns In Excel And Exporting To Csv Using Python

Is this the good way to do file locking with re-entrance in a context manager under Python 2.7? I j… Read more Sqlite3 Context Manager With File Locking In Python 2.7

I don't know what term I should use for the window I am getting so I am attaching a screenshot … Read more Getting This Black Window Instead Of Picture While Using Cv2.imshow

I have a simple python program: test.py: import time for i in range(100000): print i time.s… Read more Using Python Popen To Read The Last Line

I'm receiving STX ETX packet data, here's a sample: The data has been URL encoded. Before … Read more Decoding Url Encoded Byte Stream Data In Python

I am trying to make my own pip package installation to work and I have troubles with subfolders in … Read more Python Setuptools Package_data - Pip Fails On Subfolders

How can a 1:1 stratified sampling be performed in python? Assume the Pandas Dataframe df to be heav… Read more Python 1:1 Stratified Sampling Per Each Group

I am trying to write a regex that matches a url of the following format: /api/v1/users/ /submission… Read more Python - Regex To Match Url With Mongo Object Id

I am experimenting with Dask and want to ship a lookup pandas.DataFrame to all worker nodes. Unfort… Read more Dask Broadcast Not Available During Compute Graph

It's easy to document a class or method in Python: class Something: ''' Descripti… Read more How To Document Fields And Properties In Python?

I initialize my project with virtualenv through these steps(in Windows 7 OS): $ cd myproject $ virt… Read more Virtualenv On Windows Installs In System Site Packages

When running the python script below I'm getting an error message 'javascript error: missin… Read more Python: Javascript Error: Missing ) After Argument List

I want to save keras model and I want to save weights of each epoch to have best weights. How I do … Read more How To Save Weights Of Keras Model For Each Epoch?

This is my array arr = np.array([[0, 1], [3, 4], [6, 7]]) flat_arr = np.reshape(arr, -1) am getti… Read more Given That I Have A 2d Array And I Want To Reshape It To 1d With One Value Per Row

I often find myself populating lists and dicts by reading in files line by line. Let's say I… Read more Append To A Nested List Or Dict In Python

I use Anaconda3 5.2.0 and jupyter notebook(python3)(Window10) I made a file through 'pyinstalle… Read more How To Run Qt Platform Plugin On Windows

I'm writing conditional statements for a billing program project. It's a bit advanced for a… Read more What's Going On With My If-else Statement? (python 3.3)

This list shows what methods you need to implement for your class to be 'regarded' as Seque… Read more Issubclass Of Abstract Base Class Sequence

I am using boto to connect to EC2 and launch an instance. After creating the instance, I need to ss… Read more Ssh Key Of Newly Created Ec2 Instance Using Boto

This is not a duplicate of subprocess.Popen: 'OSError: [Errno 13] Permission denied' only o… Read more Subprocess.popen: 'oserror: [errno 2] No Such File Or Directory' Only On Linux

I've just started using numpy and its matrix module (very very useful!), and I wanted to use a … Read more Matrix As Dictionary Key

I'm implementing a socket-client which opens several sockets at the same time. Any socket may h… Read more How To Wait For Any Socket To Have Data?

I am running Python.org version 2.7 64 bit on Windows Vista 64 bit to use Scrapy. I have some code … Read more Python Shell Not Running Scrapy

I have dataframe with many rows. I want to use pd.replace to replace values in entire columns. imp… Read more Pandas Dataframe Replace With Regex Doesn't Work

I'm learning recursive function in haskell that confused with such conditon: I got a tuple list… Read more Haskell: Recursive Function That Return The Char In A Tuple List With Certain Condition(compare)

I'd like to be able to use matplotlib & pandas to create graphs based on dynamic data from … Read more Plotting Phase Changes In Matplotlib/pandas

With the help of some experts here I was able to build a scraper that works fine. The essential lin… Read more Scraping Pricing Off A Search Bar - Site Link Changed

I need to store some user and document state information in a json-like object. For example: { … Read more Store User Information With Redis Or Mongodb

I want to read json file using python pandas. Each line of the file is a complete object in JSON. I… Read more How To Read Json File Using Python Pandas?

I have the weight and bias values for each layer of the VGG model saved as a .h5 file. I got the fi… Read more Modify Some Values In The Weight File (.h5) Of Vgg-16

How would one check the number of 'active users', i.e. number of users having the web page … Read more How To Check Number Of Active Users In Dash App?

In the data I am working with the index is compound - i.e. it has both item name and a timestamp, e… Read more Converting Index Into Multiindex (hierarchical Index) In Pandas

I'm trying to reshape my long data to a wide format. The data currently looks like: OBS . date… Read more Reshaping Long Data To Wide In Python (pandas)

I have donwloaded numpy 1.8 zip version and I have python 2.7 and windows 7. When I do python setup… Read more Can't Install Numpy 1.8 With Python 2.7 Under Windows 7

Some background information: We have an ancient web-based document database system where I work, al… Read more Python String.replace() Not Replacing Characters

I am coding an algorithm for active learning, using L-BFGS algorithm from scipy.optimize. I need to… Read more To Optimize Four Parameters In Python Scipy.optimize.fmin_l_bfgs_b, With An Error

I want to plot a large number of data points on a polar scatter plot. I know how my data looks like… Read more Matplotlib Polar Plot With Large Number Of Points Gets Distorted

>>> df.head() № Summer Gold Silver Bronze Total № Winter \ … Read more Valueerror: The Truth Value Of A Series Is Ambiguous

The sys module has a couple of global properties that I'm interested in: sys.stdout and sys.std… Read more Intercepting Assignments To Sys.stdout And Sys.stderr

I have a '.csv' file containing data about movies and I'm trying to reformat it as a JS… Read more Pandas To_json() Redundant Backslashes

I need a help with some code here. I wanted to implement the switch case pattern in Python, so like… Read more Switch-case In Python Doesn't Work; Need Another Pattern

This problem is going completely over my head. I am training a Word2Vec model using gensim. I have … Read more Word2vec Gensim Multiple Languages

I have a below regex expression, /\A(\d{5}[A-Z]{2}[a-zA-Z0-9]{3,7}-TMP|\d{5}[A-Z]{2}\d{3,7}(\-?\d{2… Read more The "\z" Anchor Not Working In Python Regex

I have a Long list of numbers like the following. I would like to find frequency distribution of ea… Read more Finding Frequency Distribution Of A List Of Numbers In Python

I am quite new to python and am trying to call python's function from java. My primary requirem… Read more Different / Better Approaches For Calling Python Function From Java

This is probably a simple fix, but having a little trouble getting my head around it; I'm readi… Read more Str.replace With A Variable

This is my first post on Stack Overflow. I have been browsing and searching for every possible answ… Read more "typeerror: 'str' Object Is Not Callable" Using Webdriverwait For Link_text In Selenium Through Python

I'm building an application that does thousands (possibly millions) of calculations based off o… Read more Killing A Multiprocess Pool Using A Tkinter Button

I'm running this script on Kali linux with intel core i7-4510u: import cv2 from datetime import… Read more How To Increase Performance Of Opencv Cv2.videocapture(0).read()

In Python/Django I have a FormView that allows you to add certain field choices ad hoc. (Example: … Read more Returning To Page That Brought You There Django

Hey guys, I have a question that I am a list of numbers and I need to use functions to find the ave… Read more Trouble Using Function In Python

I have a shell script which I execute manually like below First it prints some message and then at … Read more Running An Interactive Shell Script In Python

I would like to read a .csv file and return a groupby function as a callback to be displayed as a s… Read more Return A Pandas Dataframe As A Data_table From A Callback With Plotly Dash For Python

I have made a tool/program on Ubuntu written in Python. I want to give this to my friend to test on… Read more How To Make An Encrypted Executable File

Specs: Python 2.7 I'm working on a project that has several modules, I want to activate some fe… Read more How Can We Make __future__ Imports Global?

I am training a Convolutional Neural Network using Google Colab's CPU and GPU. This is the arch… Read more Training On Gpu Much Slower Than On Cpu - Why And How To Speed It Up?

I create sqlalchemy engine connecting to MySQL database. I want to specify charset as create_engine… Read more Sqlalchemy, Setting Mysql Charset As `create_engine` Argument

I am trying to make DFT (discrete fourier transforms) plots using pcolor in python. I have previous… Read more Python Pylab Pcolor Options For Publication Quality Plots

I'm trying to open a csv file that is 10 columns x 100 rows and I first want to swap it to 100 … Read more Str To Float Error In Csv Python

I'm developing video game, and I'd like it to be highly modable. Currently, all my game log… Read more Is This Entity Definition Model Too Verbose?