Difference between revisions of "Python quick reference"

From thelinuxwiki
Jump to: navigation, search
(variable operations)
(variable operations)
Line 20: Line 20:
 
example:
 
example:
  
<source lang="python">
+
>>> var1 = foo
>>> var1 = foo
+
</source>
+
 
  Traceback (most recent call last):
 
  Traceback (most recent call last):
 
  File "<stdin>", line 1, in ?
 
  File "<stdin>", line 1, in ?

Revision as of 15:40, 14 August 2017

Contents

Introduction

Lexical analysis

Data model

Execution model

Expressions

Simple statements

variable operations

assigenment examples

 >>> var1 = 'foo'
 >>> type(var1)
 <type 'str'>
 >>> print var1
 foo

string assignment like above must be incapsulated by quotes or the right side is interpretted as a variable name.

example:

>>> var1 = foo
Traceback (most recent call last):
File "<stdin>", line 1, in ?
NameError: name 'foo' is not defined

print

print sing variable named foo

>>> print foo

print multiple variables with text

print 'my variable are %s %s' % (FOO, BAR)

Common string operations

print nth word of string

 print s.split()[n]