dict_usage.pycmd

// dict_usage.pycmd
// 
// Copyright (c) 2014 - Michele De Stefano (micdestefano@users.sourceforge.net)
// 
// Distributed under the MIT License (See accompanying file LICENSE)


/**
 * \example    dict_usage.pycmd
 * 
 * Shows the usage of the dict_usage extension from the Python prompt.
 */

mds_utils::python::Dictionary usage example from the Python prompt:

>>> import dict_usage as du
>>> d = {1:2.2,'r':[1,2,3.3,'aaa'],'4':(1,2,3)}
>>> d
{1: 2.2, 'r': [1, 2, 3.3, 'aaa'], '4': (1, 2, 3)}
>>> d2 = du.copy_dict(d)
>>> d2
{1: 2.2, 'r': [1, 2, 3.3, 'aaa'], '4': (1, 2, 3)}
>>> d2['r'] = ('aa','bb','cc')
>>> d
{1: 2.2, 'r': [1, 2, 3.3, 'aaa'], '4': (1, 2, 3)}
>>> d2
{1: 2.2, 'r': ('aa', 'bb', 'cc'), '4': (1, 2, 3)}
>>> du.clear_dict(d2)
>>> d2
{}
>>> du.dict_contains(d,1)
True
>>> du.dict_contains(d,'cc')
False
>>> du.dict_contains(d,'r')
True
>>> du.dict_contains_int_key(d,1)
True
>>> du.dict_contains_int_key(d,2)
False
>>> du.dict_contains_str_key(d,'r')
True
>>> du.dict_contains_str_key(d,'cc')
False
>>> du.dict_set_item(d,'cc','dd')
>>> d
{'cc': 'dd', 1: 2.2, 'r': [1, 2, 3.3, 'aaa'], '4': (1, 2, 3)}
>>> # You can notice that I've just created a new item
...
>>> du.dict_set_item(d,1,3.3)
>>> d
{'cc': 'dd', 1: 3.3, 'r': [1, 2, 3.3, 'aaa'], '4': (1, 2, 3)}
>>> du.dict_set_item_str_int(d,'t',4)
>>> d
{'cc': 'dd', 1: 3.3, 'r': [1, 2, 3.3, 'aaa'], '4': (1, 2, 3), 't': 4}
>>> du.dict_set_item_str_int(d,'r',5)
>>> d
{'cc': 'dd', 1: 3.3, 'r': 5, '4': (1, 2, 3), 't': 4}
>>> du.dict_del_item(d,'4')
>>> d
{'cc': 'dd', 1: 3.3, 'r': 5, 't': 4}
>>> du.dict_del_item(d,'p')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
RuntimeError: Could not remove item from dictionary.
>>> du.dict_get_item(d,'r')
5
>>> du.dict_items(d)
[('cc', 'dd'), (1, 3.3), ('r', 5), ('t', 4)]
>>> du.dict_keys(d)
['cc', 1, 'r', 't']
>>> du.dict_values(d)
['dd', 3.3, 5, 4]
>>> du.dict_len(d)
4L
>>> d2 = {'s':5,'r':8}
>>> du.dict_update(d,d2)
>>> d
{1: 3.3, 's': 5, 'r': 8, 't': 4, 'cc': 'dd'}