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Get () method for dictionaries in Python

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dic = { " A " : 1 , "B" : 2 }

print (dic [ "A" ])

print (dic [ "C" ])

The problem that comes up here is that the 3rd line of code returns a key error:

 Traceback (most recent call last): File ".dic.py", line 3, in print (dic ["C"]) KeyError: ’C’ 

The get () method is used, to avoid such situations. This method returns the value for the given key, if present in the dictionary. If not, then it will return None (if get () is used with only one argument).

Syntax :

Dict.get (key, by default = No)

Example:

dic = { "A" : 1 , "B" : 2 }

print (dic.get ( "A" ))

print (dic.get ( "C" ))

print (dic.get ( " C " , " Not Found! " ))

Output:

 1 None Not Found! 

This article is contributing to Mayank Rawata If you love Python.Engineering and would like to contribute, you can also write an article using contribute.python.engineering or mail article [email protected] See your article appearing on the Python.Engineering homepage and help other geeks.

Please post comments if you find anything wrong or if you would like to share more information on the topic discussed above.

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