Re: A Trivial Python Error

On Monday 27 November 2006 12:11 pm, Rich Shepard wrote:
>    I cannot concatenate a variable holding the file name with the suffix of
> '.db' in my application. It _should_ work, but it isn't and I don't see
> why.
>
>    The calling module has this method:
>
>    def OnNewMod(self, event):
>      newName = functions.newFile(self)
>      self.tcName.SetValue(config.projname)
>      print 'pwd = '+ config.dirname
>      print 'project name = '+ config.projname
>      print 'dbFileName = '+ config.dbFileName
>      # DBtools().OpenDB(config.dbFileName)
>
> the functions module's functions do their job and return two of the three
> variables defined in config.py. That module contains:
>
> dirname = ' '
> projname = ' '
> dbFileName = projname + '.db'
>
>    However, when I run the application the three print statements show:
>
> pwd = /data1/eikos
> project name = foobar
> dbFileName =  .db
>
>    What simple thing have I missed that the value of config.projname is not
> being assigned to config.dbFileName?
>
> Rich
Try-
print 'dbFileName = 'config.projname+ config.dbFileName
My guess it is an order of execution problem. projname starts out as ' ' and 
that is what you are getting- ' '+'db'=' .db' You need to track down when a 
value is assigned to projname and call dbFileName after that.
-- 
Adrian Klaver	
[email protected]