Quite often, there is a need to convert one data type to another, such as a float to an integer, or a string into a number and back. No worries! It is easy to achieve using built-in functions. However, there are some conversion rules to be learned. A string to a float is as follows:

>>> float(“2.5”)
2.5

A string to an integer is as follows:

>>> int(“45”)
45

A float to an integer and vice versa are as follows:

>>> int(4.521)
4

>>> float(5)
5.0

Booleans to integers, floats, and strings are as follows:

>>> int(True)
1

>>> float(False)
0.0

>>> str(True)
'True'

If Python cannot convert values, then it will raise an error:

>>> int(“2.5”)
File "<ipython-input-11-cf753495344d>", line 1
    int(“2.5”)
         ^
SyntaxError: invalid character in identifier