Getting Started

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Python is a widely used programming language. It is:

if something:
    x = 1
else:
    x = 'this is a string'
print(x)
1 + '1'  # raises an error
1 + int('1')  # results with 2

Its design principles are outlined in The Zen of Python.

Currently, there are two major release branches of Python which have some significant differences. Python 2.x is the legacy version though it still sees widespread use. Python 3.x makes a set of backwards-incompatible changes which aim to reduce feature duplication. For help deciding which version is best for you, see this article.

The official Python documentation is also a comprehensive and useful resource, containing documentation for all versions of Python as well as tutorials to help get you started.

There is one official implementation of the language supplied by Python.org, generally referred to as CPython, and several alternative implementations of the language on other runtime platforms. These include IronPython (running Python on the .NET platform), Jython (on the Java runtime) and PyPy (implementing Python in a subset of itself).

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Getting Started:

Table Of Contents
0 Getting Started
2 Filter
3 List
7 Loops
22 Reduce
27 Classes
31 Set
42 Tuple
45 Enum
62 Sockets
89 urllib
92 Idioms
104 Stack
105 Profiling
109 Logging
111 os module
118 Mixins
120 ArcPy
126 Arrays
132 2to3 tool
135 Unicode
138 Neo4j
140 Curses
141 Templates
145 heapq
146 tkinter
154 Audio
155 pyglet
157 ijson
160 Flask
161 Groupby
163 pygame
165 hashlib
166 Gzip
167 ctypes
185 pyaudio
186 shelve