Python float()

Python float() class

The float() class in Python returns a floating point number constructed from a number or string x.

Syntax

class float([x])

Parameter

x: This parameter represents a number or a string that can be converted into a floating point number

Return

This function returns a floating point number.

Example 1

#Python program explaining
# the float() class
val=6
print("value: ",val)
#Applying float() funcion
x = float(val)
print("After float() function: ",x)

Output

value:  6
After float() function:  6.0

Example 2

#Python program explaining
# the float() class
print(float(121.89))
# for floating point numbers
print(float(18))
# for integer type strings
print(float("23"))
# for floating type strings
print(float("-160.4"))
# for string floats with whitespaces
print(float("     -214.98   \n"))

Output

121.89
18.0
23.0
-160.4
-214.98

Example 3

#Python program explaining
# the float() class
# Error is generated for string values
print(float("float"))

Output

Traceback (most recent call last):
  File "main.py", line 5, in <module>
    print(float("float"))
ValueError: could not convert string to float: 'float'