You said "The .py code takes input from sys.stdin and outputs to sys.stdout" so I infer you are talking about streaming, not a python UDF. In that case, rather than streaming through your python script P.py, instead stream through a shell script S.sh. The shell script can untar shipped or cached files, then run P.py. Maybe not completely elegant, but this approach works for me.
William F Dowling Senior Technologist Thomson Reuters -----Original Message----- From: Ryan Compton [mailto:compton.r...@gmail.com] Sent: Tuesday, November 05, 2013 6:40 PM To: user@pig.apache.org Subject: Need example of python code with dependency files I have some python code I'd like to deploy with a pig script. The .py code takes input from sys.stdin and outputs to sys.stdout. It also needs some parameter files to run properly. The book "Programming Pig" tells me: "The workaround for this is to create a TAR file and ship that, and then have a step in your executable that unbundles the TAR file" but I'm still real confused. I need an example of how to unpack it (eg unpack in a bash script I pass around, unpack in the pig script, ??)