Dictionaries in Python 3:
Python's dictionaries are kind of hash-table type. They work like
associative arrays or
hashes found in Perl and consist of key-value pairs. A dictionary key
can be almost any
Python type, but are usually numbers or strings. Values, on the other
hand, can be any
arbitrary Python object.
Dictionaries are enclosed by curly braces ({ }) and values can be
assigned and accessed
using square braces ([]).
Dictionaries have no concept of order among the elements. It is
incorrect to say that the
elements are "out of order"; they are simply unordered.
- Dictionaries have key value pairs.
- Dictionaries are enclosed by curly braces { }.
- indexing and accessing with [ ].
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