check whether the given date value is valid or not in python with django -

i need check whether given input value of date valid or not in python. used datetime.strptime check date. getting value error doesn't match format when given input value date '06-06-'. it's wrong want display output invalid.

  if (datetime.strptime(s,'%m-%d-%y')):        print "valid"   else:        print "invalid" 

1 . s = '06-06-15' when given input value above, display correct output value "valid"

2. s = '06-06-' when given input value above, getting error time data '06-13' not match format '%m-%d-%y'. want display output "invalid"

please suggest me that. in advance.

this how works.

valueerror raised if date_string , format can’t parsed time.strptime()

just turn

datetime.strptime(s,'%m-%d-%y'):        print "valid" except valueerror:        print "invalid"