The Dict ()() Function in Python

This guide covers the dict ()() function in python with practical context and easy-to-follow details. Use it to understand the subject and apply the information confidently.

The Syntax of the Dict ()() Function in Python

The Dict () Function has several different forms as follows:

class dict(**kwarg)

class dict(mapping, **kwarg)

class dict(iterable, **kwarg)

Note: ** kwarg Allows you to pass as many parameters as you want without knowing the number in advance.

The parameter using the keyword argument is a pre-defined parameter. So the keyword argument is in the form Kwarg = the value Will be passed to the Dict () Function to create the dictionary.

Dict () does not return any value.

Example 1: Create Dictionary using the keyword argument.

numbers = dict(x=5, y=0)
print('numbers = ',numbers)
print(type(numbers))

empty = dict()
print('empty = ',empty)
print(type(empty))

Run the program, the result is:

empty = dict()
print('empty = ',empty)
print(type(empty))

Example 2: Create Dictionary uses Iterable

# keyword argument không ???c truy?n vào
numbers1 = dict([('x', 5), ('y', -5)])
print('numbers1 =',numbers1)

# keyword argument ???c truy?n vào
numbers2 = dict([('x', 5), ('y', -5)], z=8)
print('numbers2 =',numbers2)

# zip() t?o iterable trong Python 3
numbers3 = dict(dict(zip(['x', 'y', 'z'], [1, 2, 3])))
print('numbers3 =',numbers3)

Run the program, the result is:

numbers1 = {'y': -5, 'x': 5}
numbers2 = {'z': 8, 'y': -5, 'x': 5}
numbers3 = {'z': 3, 'y': 2, 'x': 1}

Example 3: Create Dictionary uses mapping

numbers1 = dict({'x': 4, 'y': 5})
print('numbers1 =',numbers1)

# Không nh?t thi?t ph?i dùng dict()
numbers2 = {'x': 4, 'y': 5}
print('numbers2 =',numbers2)

# keyword argument ???c truy?n vào
numbers3 = dict({'x': 4, 'y': 5}, z=8)
print('numbers3 =',numbers3)

The result is:

numbers1 = {'x': 4, 'y': 5}
numbers2 = {'x': 4, 'y': 5}
numbers3 = {'x': 4, 'z': 8, 'y': 5}

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