Why TypeError: 'str' object is not callable?

[Kent Johnson]

Carl J. Van Arsdall wrote:
> Randall Parker wrote:
>>
>>Getting:
>>TypeError: 'str' object is not callable
>>
>>on this line:
>>
>>  
> 
> You have a boo boo
> 
> 
>>TmpErrMsg1 = "State machine %s " (StateMachineName)
>>  
> 
> Should be
> 
> TmpErrMsg1 = "State machine %s " %(StateMachineName)

And the reason for the error message is, when you write
   a(b)

Python interprets this as, call the object a, passing the parameter b. 
If a is a string - a 'str' object - Python attempts to call the string. 
Strings are not callable so you get the error message you see.

Kent