hours = input("Enter Hours:")
try:
   value = float(hours)
    print value
except:    
    print "Please enter a number"
Error:
NameError: name 'x' is not defined 
hours = input("Enter Hours:")
try:
   value = float(hours)
    print value
except:    
    print "Please enter a number"
Error:
NameError: name 'x' is not defined 
 
    
    input tries to interpret what you provided. Use raw_input.
