Python isnumeric float

Using float() you can quickly check if a string is a float. The isnumeric() doesn’t consider numbers with non-ints as numeric. So you have to check with the float() method isnumeric float does not work in Python.

The easiest way is to convert the string to a float with float():

float('42.666')

If it can’t be converted to a float, you get a ValueError:

Using a try/except block is typically considered the best way to handle this:

try:
  width = float(width)
except ValueError:
  print('Width is not a number')

Python isnumeric float example

Simple example code.

def isfloat(num):
    try:
        float(num)
        return True
    except ValueError:
        return False


print(isfloat('s12'))
print(isfloat('1.123'))
print(isfloat('Hello'))

Output:

Do comment if you have any doubts or suggestions on this Python isnumeric method topic.

Note: IDE: PyCharm 2021.3.3 (Community Edition)

Windows 10

Python 3.10.1

All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.