Python String isdigit() Method
Example
Check if all the characters in the text are digits:
    txt = "50800"
x = txt.isdigit()
    
print(x)
  Run example »
Definition and Usage
The isdigit() method returns True if all the 
characters are digits, otherwise False.
Exponents, like ², are also considered to be a digit.
Syntax
  
    string.isdigit()
  
Parameter Values
No parameters.
More Examples
Example
Check if all the characters in the text is alphabetic:
    a = "\u0030" #unicode for 0
b = "\u00B2" #unicode 
    for ²
print(a.isdigit())
print(b.isdigit())
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