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Associative array/Creation: Difference between revisions
python dictionaries
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hash[777] # => 'unknown key 777'
hash[666] # => 'devil'
==[[Python]]==
In Python, hashes are called dictionaries.
# empty dictionary
d = {}
d['spam'] = 1
d['eggs'] = 2
# dictionaries with two keys
d1 = {'spam': 1, 'eggs': 2}
d2 = dict(spam=1, eggs=2)
# dictionaries from tuple list
d1 = dict([('spam', 1), ('eggs', 2)])
d2 = dict(zip(['spam', 'eggs'], [1, 2]))
# iterating over keys
for key in d:
print key, d[key]
# iterating over (key, value) pairs
for key, value in d.iteritems():
print key, value
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