Python Dictionary clear()

The dict.clear() method removes all the key-value pairs from the dictionary.

Syntax:

dict.clear()

Parameter:

No parameters.

Return type:

None.

The following example demonstrates the dict.clear() method.

Example:
romanNums = {'I':1, 'II':2, 'III':3, 'IV':4, 'V':5 }
print("Dictionary: ", romanNums)

romanNums.clear()
print("Dictionary after calling clear() method: ", romanNums)
Output
Dictionary:  {'I': 1, 'II': 2, 'III': 3, 'IV': 4, 'V': 5}
Dictionary after calling clear() method:  {}

The keys of the dictionary can also be integers. The clear() method will still work.

Example:
numdict = {1:'one',2:'two',3:'three',4:'four',5:'five'}
print("Dictionary: ", numdict)
numdict.clear()
print("Dictionary after calling clear() method: ", numdict)
Output
Dictionary:  {1: 'one', 2: 'two', 3: 'three', 4: 'four', 5: 'five'}
Dictionary after calling clear() method:  {}
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