Python | Convert a list to dictionary Given a list, write a Python program to convert the given list to dictionary such that all the odd elements have the key, and even number elements have the value. Since python dictionary

# Day: October 15, 2021

## Division Operators in PythonDivision Operators in Python

Division Operators in Python Consider the below statements in Python. # A Python program to demonstrate the use of # "//" for integers print (5//2) print (-5//2) Output: 2 -3 The first output is fine, but the second one may

## Python – Merging two DictionariesPython – Merging two Dictionaries

Merging two Dictionaries in Python There are various ways in which Dictionaries can be merged by the use of various functions and constructors in Python. In this article, we will discuss a few ways of merging dictionaries. Using the method

## OrderedDict in PythonOrderedDict in Python

Python OrderedDict An OrderedDict is a dictionary subclass that remembers the order that keys were first inserted. The only difference between dict() and OrderedDict() is that: OrderedDict preserves the order in which the keys are inserted. A regular dict doesn’t track

## Pandas dataframe.pct_change()Pandas dataframe.pct_change()

Pandas dataframe.pct_change() Pandas dataframe.pct_change() function calculates the percentage change between the current and a prior element. This function by default calculates the percentage change from the immediately previous row. Note : This function is mostly useful in the time-series data.

## Pandas Series.str.cat() to concatenate stringPandas Series.str.cat() to concatenate string

Python Pandas Series.str.cat() to concatenate string Pandas str.cat() is used to concatenate strings to the passed caller series of string. Distinct values from a different series can be passed but the length of both the series has to be same.

## Get month and Year from Date in Pandas – PythonGet month and Year from Date in Pandas – Python

Get month and Year from Date in Pandas – Python Pandas is one of the most powerful library in Python which is used for high performance and speed of calculation. It is basically an open-source BSD-licensed Python library. Commonly it

## Pandas – Practice Excercises, Questions and SolutionsPandas – Practice Excercises, Questions and Solutions

Pandas – Practice Excercises, Questions and Solutions Pandas is an open-source library that is made mainly for working with relational or labeled data both easily and intuitively. This library is built on the top of the NumPy library, providing various

## How to export Pandas DataFrame to a CSV file?How to export Pandas DataFrame to a CSV file?

How to export Pandas DataFrame to a CSV file? Let us see how to export a Pandas DataFrame to a CSV file. We will be using the to_csv() function to save a DataFrame as a CSV file. DataFrame.to_csv() Syntax :

## Pandas dataframe.skew()Pandas dataframe.skew()

Pandas dataframe.skew() Pandas dataframe.skew() function return unbiased skew over requested axis Normalized by N-1. Skewness is a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean. For more information on skewness, refer