txt = "565543"

​

x = txt.isnumeric()

>>> def hasNumbers(inputString):

...     return any(char.isdigit() for char in inputString)

... 

>>> hasNumbers("I own 1 dog")

True

>>> hasNumbers("I own no dog")

False

'16'.isdigit()

>>>True

​

'3.14'.isdigit()

>>>False

​

'Some text'.isdigit()

>>>False

if type(variable) == int or type(variable) == float:

    isNumber = True

colors = [11, 34.1, 98.2, 43, 45.1, 54, 54]

​

for x in colors:

    if int(x) == x:

        print(x)

    #or

    if isinstance(x, int):

        print(x)

str = input("Enter any value: ")

if str.isdigit():

    print("User input is an Integer ")

else:

    print("User input is string ")

var.isdigit()

#return true if all the chars in the string are numbers

#return false if not all the chars in the string are numbers

#The isnumeric function can be used to determine a string is an integer or not!

#for example!

s = '5651'

if s.isnumeric():

   print('True')

else:

   print('False')

#i hope i helped you!

#Sorry for bad english!

'3'.isdigit()

True

'276'.isdigit()

True

'Bob276'.isdigit()

False

​

# The definition below interger will be flaged "True" as well as float.

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

>>> 'A'.isdigit()

False

>>> '1'.isdigit()

True