Hi, welcome to the community!
First question is, how did you install pig? Source or some other distribution? Second, Pig wants jython.version=2.5.0 Which version have you installed? Cheers, -- Gianmarco On Thu, Apr 19, 2012 at 21:29, Fernando Doglio <[email protected] > wrote: > Hello everyone, new pig user here. > > I've being toying around with pig for a while now, and I wanted to create > my first UDF in Python. It all went fine until I wanted to use RegExps. > > I tried importing the "re" module on my python script, but when I did that, > I got an error message: > > [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR 1121: Python > Error. Traceback (most recent call last): > > File "utils.py", line 3, in <module> > > import re > ImportError: No module named re > > > Looking around the net, I ended up installing "jython" on my system, that > didn't do the trick, but doing a bit more research, I found out that the > sys.path variable was different when I ran the script using the "jython" > command and when I used the "pig" command: > > *Using Jython* > > ['', '/usr/share/jython/Lib', '/usr/lib/site-python', '__classpath__'] > > > *Using pig* > > ['/pig/lib/Lib', '__classpath__', '__pyclasspath__/']1 > > > So I went back to my script, and manually changed the "sys.path" variable > to look like the first example up there.. now when I run the script with > pig, I get the following message: > > File "utils.py", line 8, in <module> > > import re > File "/usr/share/jython/Lib/re.py", line 7, in <module> > > import sre, sys > File "/usr/share/jython/Lib/sre.py", line 97, in <module> > > import sre_compile > File "/usr/share/jython/Lib/sre_compile.py", line 17, in <module> > > assert _sre.MAGIC == MAGIC, "SRE module mismatch" > AssertionError: SRE module mismatch > > > According to someone on stackoverflow, this is due to the fact that my > manually installed "jython" version is different from the one used by > Pig.... > > Now, finally, my question is: how do I get my python script to run on pig > correctly? > > > Thanks so much for reading and if you can, for answering! > > Fernando Doglio >
