Question : How do you join two tables on a foreign key field using django ORM? Let’s assume I have […]
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Parsing json and searching through it
Question : Parsing json and searching through it I have this code import json from pprint import pprint json_data=open(‘bookmarks.json’) jdata […]
Is a variable swap guaranteed to be atomic in python?
Question : Is a variable swap guaranteed to be atomic in python? With reference to the following link: http://docs.python.org/faq/library.html#what-kinds-of-global-value-mutation-are-thread-safe I […]
What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
Problem : What do *args and **kwargs mean? def foo(x, y, *args): def bar(x, y, **kwargs): Solution : The *args […]
“x not in y” or “not x in y”
Question : “x not in y” or “not x in y” When testing for membership, we can use: x not […]
How to find the nearest Fibonacci Series number?
Question : How to find the nearest Fibonacci Series number? My next step is if the input is not in […]
Scipy.optimize.minimize SLSQP with linear constraints fails
Question : Scipy.optimize.minimize SLSQP with linear constraints fails Consider the following (convex) optimization problem: minimize 0.5 * y.T * y […]
Move non-empty cells to the left in pandas DataFrame
Question : Move non-empty cells to the left in pandas DataFrame Suppose I have data of the form Name h1 […]
How to provide a reproducible copy of your DataFrame with to_clipboard()
Problem : 2018-09-18_reproducible_dataframe.ipynb This question was previously marked as a duplicate of How to make good reproducible pandas examples. Go […]
Managing Tweepy API Search
Question : Managing Tweepy API Search Please forgive me if this is a gross repeat of a question previously answered […]
