#!/usr/bin/env python
import string
alphas = string.letters + '_'
nums = string.digits
print 'Welcome to the Identifier Checker v1.0'
print 'Testees must be at least 2 chars long.'
myInput = raw_input('Identifier to test? ')
if len(myInput) > 1:
if myInput[0] not in alphas:
print '''invalid: first symbol must be alphabetic'''
else:
for otherChar in myInput[1:]:
if otherChar not in alphas + nums:
print '''invalid: remaining symbols must be alphanumeric'''
break
else:
print "okay as an identifier", otherChar
[root@localhost tmp]# ./2
Welcome to the Identifier Checker v1.0
Testees must be at least 2 chars long.
Identifier to test? inihao
okay as an identifier n
okay as an identifier i
okay as an identifier h
okay as an identifier a
okay as an identifier o
>>> import string
>>> alphas = string.letters + '_'
>>> alphas
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_'
>>> nums = string.digits
>>> nums
'0123456789'
