Problem with diferences in executinion

[Chris Liechti]

samschul at pacbell.net (Samuel Schulenburg) wrote in 
news:d7fcf8b4.0207221430.37c26071 at posting.google.com:

> If I execute the following code snipit from Python it executes the way
> I expected it. If I build a standalone exe with McMillan's installer
> the function call to startscsi() function in MaxPTI's __init__() is
> not in scope.
> 
> Maxscsi.py is a file that initializes and loads MaxSCSI.dll which
> contains startscsi(). This DLL and Maxscsi.py have been used in other
> McMillan installer programs without any problems. This is the first
> time I have tried to use a class to instanuate the DLL. The whole idea
> behind this program is the desire to embed Python in an exe with some
> added methods to allow non programmers to write an external script
> file and execute it with the exe with the following call:
> 
> "MaxPTI MyTest"
> 
> Any Help would be appreciated
> Sam Schulenburg
> 
> ======================= MaxPTI.py/MaxPTI.exe  contains ===============
> 
> from Maxscsi import *  # import scsi library
> from sys import *

don't do import *. it's fine for some packages spcially designed for such 
use. generally it's a source of problem if a module defines names that 
conflict with an other module's names.
don't do it with sys and _never_ with os.

> class MaxPTI:
>      
>    def __init__(self,Headless=0):
>         startscsi(1,Headless) # Start scsi initializtion setting 
>                               # Genericflag = 1,and Headless
>         initscsi("MaxPTI","physicaldrive",1) # Locate drives
>         setshowcdb(0)
>         setlogerror(1)
>         setpauseonerror(0)
>            .....
>            .....
>    def Function1()
>           ....
>           ....
> 
>    def Function2()
>           ....
>           ....
> 
> if __name__ == '__main__':
>     a = MaxPTI(1)
>     exec("from %s import MyScript"%(argv[1]))

you could do this with "__import__('filename')", "exec" smells bad...

>     print 'Start Script'
>     MyScript(a)

so you require a function MyScript.MyScript... i would use
"execfile(sys.argv[1])" is executed in the current namespace, so your class 
is available right away. no need to have a special named function neither.

> =================== End MaxPTI.py ==============
> 
> ================== MyTest.py ===================
> def MyScript(a):
>     print a.DeviceTable
>     for i in range(a.DeviceTableLength):
>        print a.DeviceTable[i]
>     print a.DeviceTable[2][a.pSERIALNUM]
>     print a.DeviceTable[2][a.pVENDOR]
> 

you don't provide detailed information about the failure you experience. 
please paste a traceback in such cases. often that says more than a tousand 
words ;-)

chris

-- 
Chris <cliechti at gmx.net>