How is data type conversion performed in Python?

In Python, data type conversions are performed using built-in constructor functions such as int(), float(), str(), list(), tuple(), and others. They take an object and attempt to convert it to the specified type.

Example:

x = '123'
num = int(x)  # converts the string '123' to the number 123

f = 3.14
s = str(f)    # converts the number 3.14 to the string '3.14'

lst = [1, 2, 3]
t = tuple(lst) # converts the list to a tuple (1, 2, 3)

If the conversion is not possible, a ValueError exception will be raised.