Python dictionary built-in methods

Source: Internet
Author: User
Tags shallow copy

The Python dictionary contains the following built-in methods:

Serial Number Functions and descriptions
1 Radiansdict.clear ()
Delete all elements in a dictionary
2 Radiansdict.copy ()
Returns a shallow copy of a dictionary
3 Radiansdict.fromkeys ()
Create a new dictionary with the keys to the dictionary in sequence seq, Val is the initial value corresponding to all keys in the dictionary
4 Radiansdict.get (Key, Default=none)
Returns the value of the specified key if the value does not return the default value in the dictionary
5 Key in Dict
Returns False if the key returns true in the dictionary Dict
6 Radiansdict.items ()
Returns an array of traversed (key, value) tuples as a list
7 Radiansdict.keys ()
Returns a dictionary of all keys in a list
8 Radiansdict.setdefault (Key, Default=none)
Similar to get (), but if the key does not exist in the dictionary, the key is added and the value is set to default
9 Radiansdict.update (DICT2)
Update the key/value pairs of the dictionary dict2 to the Dict
10 Radiansdict.values ()
Returns all values in the dictionary as a list
11 Pop (Key[,default])
Deletes the value of the dictionary given key key, and returns the value to be deleted. The key value must be given. Otherwise, the default value is returned.
12 Popitem ()
Randomly returns and deletes a pair of keys and values in the dictionary (typically delete the end pair).

Python dictionary built-in methods

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