Python3 isnumeric() Method
Python3 StringsDescription
The isnumeric() method checks whether a string consists only of numbers. Numbers can be: Unicode numerals, full-width digits (double-byte), Roman numerals, Chinese numerals.
Exponent-like characters²Fraction-like characters½Also count as numbers.
# s = '½' s = '\u00BD'
Syntax
Syntax of the isnumeric() method:
str.isnumeric()
Parameters
- None.
Return Value
Returns True if the string contains only numeric characters, otherwise returns False.
Example
The following example demonstrates the isnumeric() method:
Example
#!/usr/bin/python3
str = "example2016"
print (str.isnumeric())
str = "23443434"
print (str.isnumeric())
str = "example2016"
print (str.isnumeric())
str = "23443434"
print (str.isnumeric())
The output of the above example is as follows:
False True
Unicode numerals:
Example
#!/usr/bin/python3
#s = '²3455'
s = '\u00B23455'
print(s.isnumeric())
# s = '½'
s = '\u00BD'
print(s.isnumeric())
a = "\u0030" #unicode for 0
print(a.isnumeric())
b = "\u00B2" #unicode for ²
print(b.isnumeric())
c = "10km2"
print(c.isnumeric())
#s = '²3455'
s = '\u00B23455'
print(s.isnumeric())
# s = '½'
s = '\u00BD'
print(s.isnumeric())
a = "\u0030" #unicode for 0
print(a.isnumeric())
b = "\u00B2" #unicode for ²
print(b.isnumeric())
c = "10km2"
print(c.isnumeric())
The output of the above example is as follows:
True True True True False
Other Extensions