Thanks for the replies (and Benjamin). Not met with the subprocess idea. On 28 June 2010 16:29, D'Arcy J.M. Cain <da...@druid.net> wrote:
>> Main queries are: >> Ease of calling out to bash to use something like imageMagick or Java? > > You don't need to call bash to call an external program. Check out the > subprocess module. Will do. If you do need a shell to simplify calling a > program (environment and wild card expansione.g.) don't call bash. I can get what I want from Python. No envars needed. >> Ease of grabbing return parameters? E.g. convert can return both >> height and width of an image. Can this be returned to the Python program? > > Just to set the terminology straight, a parameter is what you call the > function with. The return value is what it returns. The program > output is what it emits (prints.) My bad. I mean return values, though I do want program out from (for example) identify > > Programs return an integer value. This is also called the exit > status. Sheer greed, for identify I may get either a return value or an exit status (bad input etc) :-) Looks like subprocess can hack it though. > > What you want is the output of the program. For this you need to > capture the output and parse it. > > Look at the subprocess module. Will do. tks D'Arcy (and Benjamin) -- Dave Pawson XSLT XSL-FO FAQ. Docbook FAQ. http://www.dpawson.co.uk -- http://mail.python.org/mailman/listinfo/python-list
