Problem : I am currently using matplotlib.pyplot to create graphs and would like to have the major gridlines solid and […]

# Python DizzyCoding

## Python string.replace regular expression [duplicate]

Problem : This question already has answers here: How to input a regex in string.replace? (7 answers) Closed 2 years […]

## Run code before and after each test in py.test?

Problem : I want to run additional setup and teardown checks before and after each test in my test suite. […]

## How to clean iPython environment so I can start over with Jupyter and Python 3.x?

Problem : Over the past couple years I’ve pip installed lots of things without knowing what I was doing. All […]

## How to find which columns contain any NaN value in Pandas dataframe

Problem : Given a pandas dataframe containing possible NaN values scattered here and there: Question: How do I determine which […]

## Is there a way to get the largest integer one can use in Python? [duplicate]

Problem : This question already has answers here: Maximum and Minimum values for ints (9 answers) Closed 2 years ago. […]

## Time Series Decomposition function in Python

Problem : Time series decomposition is a method that separates a time-series data set into three (or more) components. For […]

## Pandas split DataFrame by column value

Problem : I have DataFrame with column Sales. How can I split it into 2 based on Sales value? First […]

## What is key=lambda

Problem : While using some built-in functions like sorted, sum… I noticed the usage of key=lambda What is lambda? How […]

## What is the difference between ndarray and array in NumPy?

Problem : What is the difference between ndarray and array in NumPy? Where is their implementation in the NumPy source […]