Python isdecimal

The Python isdecimal is one of the available String functions. This isdecimal function returns True if all the characters in a string are decimal characters. Otherwise, it returns False.

In this section, we explain to you how to write isdecimal function in Python Programming with example. The syntax of the isdecimal function is

String_Value.isdecimal()

Python isdecimal Example

The following set of examples helps you understand the string isdecimal function. Within the fourth statement, 100.23 is returning false because there is no decimal representation for . symbol.

# Python isdecimal Method Example
 
str1 = "100"
print("Output of str1 = ", str1.isdecimal())
 
str2 = "Python"
print("Output of str2 = ", str2.isdecimal())
 
str3 = "100and200"
print("Output of str3 = ", str3.isdecimal())
 
str4 = "100.23"
print("Output of str4 = ", str4.isdecimal())
 
str5 = "100 30"
print("Output of str5 = ", str5.isdecimal())

OUTPUT

String isdecimal Example 2

In this String function example, we are using the isdecimal function against the Unicode of different digits. Within the last statement, we used the Unicode of $ symbol, and that’s the reason Python was returning false.

str1 = "\u0033" # Unicode of Digit 3
print("Output of str1 = ", str1.isdecimal())
 
str2 = "\u0039" # Unicode of Digit 9
print("Output of str2 = ", str2.isdecimal())
 
str3 = "\u06F1" #Extended Arabic-Indic Digit 1
print("Output of str3 = ", str3.isdecimal())
 
str4 = "\u07C9" # Niko Digit 9
print("Output of str4 = ", str4.isdecimal())
 
str5 = "\u096C" # Devanagari Digit 6
print("Output of str5 = ", str5.isdecimal())
 
str6 = "\u0024" # Unicode of $ Symbol
print("Output of str6 = ", str6.isdecimal())

OUTPUT