Hi    I have completed my DE 575 exam today (8/16) at 6pm CST. There was a question where I have created an python UDF for HIVE   The program didn't work because sys.stdin didn't work.    I used  #! usr/bin/python ---> As mentioned in the exam import os   for line in sys.stdin:     <Code>   When I run the Hive query the streaming didn't happen. I got an 'error:2000' at MapReduce program from Hive Query.     I tried the same program standalone with 'cat' command on the environment and it didn't work.   I lost lot of time in debugging, and unable to solve the problem.    I would like the Cloudera team to let me know whether "import os" module is actually present or not.   Without that module the HIVE UDF in python doesn't work   Ref: 1) I performed operations as per this Blog http://spryinc.com/blog/guide-user-defined-functions-apache-hive   2) Got an error after trying somewhat similar to this and got a problem somewhat similar http://stackoverflow.com/questions/32032154/apache-hive-getting-error-while-using-python-udf   3) Get an IO error like the one below if I recall correctly http://grepcode.com/file/repo1.maven.org/maven2/co.cask.cdap/hive-exec/0.13.0/org/apache/hadoop/hive/ql/ErrorMsg.java   SCRIPT_IO_ERROR(20001, "An error occurred while reading or writing to your custom script. "  + "It may have crashed with an error."), regards Suman ... View more