The syntax of pop()
method is
dictionary.pop(key[, default])
pop() Parameters
pop()
method takes two parameters:
- key - key which is to be searched for removal
- default - value which is to be returned when the key is not in the dictionary
Return value from pop()
The pop()
method returns:
- If
key
is found - removed/popped element from the dictionary - If
key
is not found - value specified as the second argument (default) - If
key
is not found and default argument is not specified -KeyError
exception is raised
Example 1: Pop an element from the dictionary
# random sales dictionary
sales = { 'apple': 2, 'orange': 3, 'grapes': 4 }
element = sales.pop('apple')
print('The popped element is:', element)
print('The dictionary is:', sales)
Output
The popped element is: 2 The dictionary is: {'orange': 3, 'grapes': 4}
Example 2: Pop an element not present from the dictionary
# random sales dictionary
sales = { 'apple': 2, 'orange': 3, 'grapes': 4 }
element = sales.pop('guava')
Output
KeyError: 'guava'
Example 3: Pop an element not present from the dictionary, provided a default value
# random sales dictionary
sales = { 'apple': 2, 'orange': 3, 'grapes': 4 }
element = sales.pop('guava', 'banana')
print('The popped element is:', element)
print('The dictionary is:', sales)
Output
The popped element is: banana The dictionary is: {'orange': 3, 'apple': 2, 'grapes': 4}