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Python Tutorial

Python HOME Python Intro Python Get Started Python Syntax Python Comments Python Variables Python Data Types Python Numbers Python Casting Python Strings Python Booleans Python Operators Python Lists Python Tuples Python Sets Python Dictionaries Python If...Else Python While Loops Python For Loops Python Functions Python Lambda Python Arrays Python Classes/Objects Python Inheritance Python Iterators Python Scope Python Modules Python Dates Python Math Python JSON Python RegEx Python PIP Python Try...Except Python User Input Python String Formatting

File Handling

Python File Handling Python Read Files Python Write/Create Files Python Delete Files

Python NumPy

NumPy Intro NumPy Getting Started NumPy Creating Arrays NumPy Array Indexing NumPy Array Slicing NumPy Data Types NumPy Copy vs View NumPy Array Shape NumPy Array Reshape NumPy Array Iterating NumPy Array Join NumPy Array Split NumPy Array Search NumPy Array Sort NumPy Array Filter NumPy Random NumPy ufunc

Python Matplotlib

Matplotlib Intro Matplotlib Get Started Matplotlib Pyplot Matplotlib Plotting Matplotlib Markers Matplotlib Line Matplotlib Subplots Matplotlib Bars Matplotlib Histograms Matplotlib Pie Charts

Python SciPy

SciPy Intro SciPy Getting Started SciPy Constants SciPy Optimizers SciPy Sparse Data SciPy Graphs SciPy Spatial Data SciPy Matlab Arrays SciPy Interpolation SciPy Significance Tests

Machine Learning

Getting Started Mean Median Mode Standard Deviation Percentile Data Distribution Normal Data Distribution Scatter Plot Linear Regression Polynomial Regression Multiple Regression Scale Train/Test Decision Tree

Python MySQL

MySQL Get Started MySQL Create Database MySQL Create Table MySQL Insert MySQL Select MySQL Where MySQL Order By MySQL Delete MySQL Drop Table MySQL Update MySQL Limit MySQL Join

Python MongoDB

MongoDB Get Started MongoDB Create Database MongoDB Create Collection MongoDB Insert MongoDB Find MongoDB Query MongoDB Sort MongoDB Delete MongoDB Drop Collection MongoDB Update MongoDB Limit

Python Reference

Python Overview Python Built-in Functions Python String Methods Python List Methods Python Dictionary Methods Python Tuple Methods Python Set Methods Python File Methods Python Keywords Python Exceptions Python Glossary

Module Reference

Random Module Requests Module Statistics Module Math Module cMath Module

Python How To

Remove List Duplicates Reverse a String Add Two Numbers

Python Examples

Python Examples Python Compiler Python Exercises Python Quiz Python Certificate

Python Date Format Codes


Data Format Codes

A reference of all the legal format codes:

Directive Description Example Try it
%a Weekday, short version Wed Try it »
%A Weekday, full version Wednesday Try it »
%w Weekday as a number 0-6, 0 is Sunday 3 Try it »
%d Day of month 01-31 31 Try it »
%b Month name, short version Dec Try it »
%B Month name, full version December Try it »
%m Month as a number 01-12 12 Try it »
%y Year, short version, without century 18 Try it »
%Y Year, full version 2018 Try it »
%H Hour 00-23 17 Try it »
%I Hour 00-12 05 Try it »
%p AM/PM PM Try it »
%M Minute 00-59 41 Try it »
%S Second 00-59 08 Try it »
%f Microsecond 000000-999999 548513 Try it »
%z UTC offset +0100
%Z Timezone CST
%j Day number of year 001-366 365 Try it »
%U Week number of year, Sunday as the first day of week, 00-53 52 Try it »
%W Week number of year, Monday as the first day of week, 00-53 52 Try it »
%c Local version of date and time Mon Dec 31 17:41:00 2018 Try it »
%x Local version of date 12/31/18 Try it »
%X Local version of time 17:41:00 Try it »
%% A % character % Try it »