How is the Implementation of Python's dictionaries done?

dilbert_here00

 Profile Answers by dilbert_here00 

• Dec 3rd, 2007

 

Using curly brackets -> {}

eg: {'a':'123', 'b':'456'}

tomanihskb

 Profile Answers by tomanihskb 

• Feb 10th, 2009

 

A hash value of the key is computed using a hash function, The hash value
addresses a location in an array of "buckets" or "collision lists" which
contains the (key , value) pairs.  The collision list addressed by the hash
value is searched sequentially until a pair is found with pair[0] == key. There
turn value of the lookup is then pair[1].

Vivek Barkul

• Sep 14th, 2017

 

Python dictionary needs to be declared first:
objDict = { }
Key value pair can be added as:
objDict[key] = value
or
objDict.update({key:value})
remove element by:
objDict.pop(key)
remove all:
objDict.clear()