isnumber function in python code example

Example 1: 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 2: isnumeric python

str.isnumeric()
str = u"this2009";  
print str.isnumeric()
> False
str = u"23443434";
print str.isnumeric()
> True