check if string is number python code example

Example 1: python test if string is int

'16'.isdigit()
>>>True

'3.14'.isdigit()
>>>False

'Some text'.isdigit()
>>>False

Example 2: python check if int

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)

Example 3: python check if number

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

Example 4: is number python

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

Example 5: test if character is number python string

>>> 'A'.isdigit()
False
>>> '1'.isdigit()
True

Example 6: pyton how to tell if string is a int or string

def RepresentsInt(s):
    try: 
        int(s)
        return True
    except ValueError:
        return False