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Home » Python

Python String | isnumeric() Method with Example



Python String isnumeric() method: In this tutorial, we will learn about isnumeric() method of String in Python with Example.
Submitted by IncludeHelp, on July 07, 2018

isnumeric() is an in-built method in Python, which is used to check whether a string contains only numeric values or not.

Numeric contain all decimal characters and the fraction type values like (Half (½), one fourth (¼)). This method is different from isdecimal() Method because it can check other numeric values except only decimal characters (from 0 to 10).

Note:

  • Numeric values contains decimal characters (all digits from 0 to 9) and fractional part of the values like ½, ¼.
  • String should be Unicode object - to define a string as Unicode object, we use u as prefix of the string value.

Syntax:

    String.isnumeric();

Parameter: None

Return type:

  • true - If all characters of the string are numeric then method returns true.
  • false - If any of the characters of the string is not a numeric then method returns false.

Example/program:

# numeric values (decimal characters)
str1 = u"362436"
print str1.isnumeric()

# numeric values (no decimal)
str2 = u"½¼"
print str2.isnumeric()

# nemeric values (with decimals)
str3 = u"½¼3624"
print str3.isnumeric()

# numeric values with alphabets
str4 = u"Hello½¼3624"
print str4.isnumeric()

Output

    True
    True
    True
    False

Reference: String isnumeric()






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