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learn python
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its all about python
- Author: arun
- Listed in: Technology
- Tags: programming python
Recent Posts
Strings
Besides numbers, Python can also manipulate strings, which can be expressed in several ways. They can be enclosed in single quotes or double quotes: >>> 'spam eggs''spam eggs'>>> 'doesn\'t'"doesn't">>> "doesn't""doesn't">>> '"Yes," he said.''"Yes," ...
Using Python as a Calculator - Numbers
The interpreter acts as a simple calculator: you can type an expression at it and it will write the value. Expression syntax is straightforward: the operators +, -, * and / work just like in most other languages (for example, Pascal or C); parenth...
An Informal Introduction to Python
In the following examples, input and output are distinguished by the presence or absence of prompts (>>> and ...): to repeat the example, you must type everything after the prompt, when the prompt appears; lines that do not begin with a prompt are...
The Interactive Startup File
When you use Python interactively, it is frequently handy to have some standard commands executed every time the interpreter is started. You can do this by setting an environment variable named PYTHONSTARTUP to the name of a file containing your s...
Source Code Encoding
By default, Python source files are treated as encoded in UTF-8. In that encoding, characters of most languages in the world can be used simultaneously in string literals, identifiers and comments — although the standard library only uses ASCII ...
Executable Python Scripts
On BSD’ish Unix systems, Python scripts can be made directly executable, like shell scripts, by putting the line #! /usr/bin/env python (assuming that the interpreter is on the user’s PATH) at the beginning of the script and giving the file an...
