Python Dictionary fromkeys() Method

Instance

Create a dictionary with 3 keys, all values are 0:

x = ('key1', 'key2', 'key3')
y = 0
thisdict = dict.fromkeys(x, y)
print(thisdict)

Run Instance

Definition and Usage

The fromkeys() method of dict returns a dictionary with specified keys and values.

Syntax

dict.fromkeys(keys, value)

Parameter Values

Parameters Description
keys Required. An iterable object specifying the new dictionary keys.
value Optional. All values of the keys. The default value is None.

More Examples

Instance

As in the above example, but the value is not specified:

x = ('key1', 'key2', 'key3')
thisdict = dict.fromkeys(x)
print(thisdict)

Run Instance