Difference between revisions of "Python"
From neil.tappsville.com
Jump to navigationJump to search (Created page with " ==== Python version of a perl hash ==== <pre> import collections ; def tree() : return collections.defaultdict(tree) hash = tree() hash'outer_key''inner key' = "v...") |
m |
||
| Line 1: | Line 1: | ||
| + | ==+= Data Types ===+ | ||
| + | <pre> | ||
| + | int 1234 | ||
| + | >>> type(1234) | ||
| + | <class 'int'> | ||
| + | float 55.50 | ||
| + | >>> type(55.50) | ||
| + | <class 'float'> | ||
| + | complex | ||
| + | >>> type(6+4j) | ||
| + | <class 'complex'> | ||
| + | string hellow | ||
| + | >>> type("hello") | ||
| + | <class 'str'> | ||
| + | Square list [1,2,3,4] | ||
| + | >>> type([1,2,3,4]) | ||
| + | <class 'list'> | ||
| + | Round tuple (1,2,3,4) | ||
| + | >>> type((1,2,3,4)) | ||
| + | <class 'tuple'> | ||
| + | Curly dict {1:"one", 2:"two", 3:"three"} | ||
| + | >>> type({1:"one", 2:"two", 3:"three"}) | ||
| + | <class 'dict'> | ||
| + | </pre> | ||
| + | |||
==== Python version of a perl hash ==== | ==== Python version of a perl hash ==== | ||
Revision as of 02:02, 25 November 2019
==+= Data Types ===+
int 1234
>>> type(1234)
<class 'int'>
float 55.50
>>> type(55.50)
<class 'float'>
complex
>>> type(6+4j)
<class 'complex'>
string hellow
>>> type("hello")
<class 'str'>
Square list [1,2,3,4]
>>> type([1,2,3,4])
<class 'list'>
Round tuple (1,2,3,4)
>>> type((1,2,3,4))
<class 'tuple'>
Curly dict {1:"one", 2:"two", 3:"three"}
>>> type({1:"one", 2:"two", 3:"three"})
<class 'dict'>
Python version of a perl hash
import collections ; def tree() : return collections.defaultdict(tree) hash = tree() hash[['outer_key']][['inner key']] = "value" ; if not bool(hash) : print "Hash is empty" ; else : print "Hash has some data"
