PYTHON

python check if string is a float

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

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

python check if number is float or int

# check if a number is int or float

isinstance(x, int) # integer
isinstance(x, float) # float

import numbers
isinstance(x, numbers.Integral) # Long Int

check if a string is float python

try:
    float(element)
except ValueError:
    print "Not a float"

python verify if string is a float

# Interger will be flaged as True as well.
def isfloat(num):
    try:
        float(num)
        return True
    except ValueError:
        return False

print(isfloat('s12'))
False
print(isfloat('1.123'))
True
print(isfloat('456'))
True

python check if string is float

import re
if re.match(r'^-?d+(?:.d+)$', element) is None:
    print "Not float"