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Full Discussion: Strange problem running python program from within ant
Operating Systems AIX Strange problem running python program from within ant Post 302880538 by dhs on Friday 20th of December 2013 10:00:02 AM
Old 12-20-2013
Strange problem running python program from within ant
Hello,

I'm currently trying to port an ant based build to AIX 6.1. The build queries the underlying version control system (Mercurial) for some data, which works fine on other platforms (Linux, Solaris). However, on AIX the hg command fails to load python's md5 module when used in the build, while it works fin in the shell. I could reproduce the problem with a simple test setup, consisting of test.py and ant_test.xml:

test.py:
Code:
#!/usr/bin/python
import hashlib


ant_test.xml:
Code:
<project name="ant_test" default="python">
        <target name="python" >
                <exec executable="./test.py" failifexecutionfails="true" failonerror="true"/>
        </target>
</project>

When I run test.py from the shell, it works fine, but when I run the ant build, it fails:
Code:
$ ls -l
total 16
-rw-r--r--    1 dhs      usr             170 Dec 20 15:46 ant_test.xml
-rwxr-xr-x    1 dhs      usr              35 Dec 20 09:54 test.py
$ ./test.py
$ echo $?
0
$ ant -f ant_test.xml
Buildfile: /home/RECOMMIND/dhs/tmp/ant_test.xml

python:
     [exec] Traceback (most recent call last):
     [exec]   File "./test.py", line 3, in <module>
     [exec]     import hashlib
     [exec]   File "/opt/freeware/lib/python2.6/hashlib.py", line 136, in <module>
     [exec]     md5 = __get_builtin_constructor('md5')
     [exec]   File "/opt/freeware/lib/python2.6/hashlib.py", line 63, in __get_builtin_constructor
     [exec]     import _md5
     [exec] ImportError: No module named _md5

BUILD FAILED
/home/RECOMMIND/dhs/tmp/ant_test.xml:3: exec returned: 1

Total time: 1 second

I currently have no idea how to resolve or even debug this, as AIX is somewhat new to me.

Versions:
AIX 6.1 TL08
Python 2.6.8 installed as RPM package obtained from perzl.org
Java is IBM JDK 7.1
Ant 1.8.4

Thanks in advance...

Dirk
 

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LEARN ABOUT DEBIAN

ant

ant(1)							      General Commands Manual							    ant(1)

NAME

       ant - a Java based make tool.

SYNOPSIS

       ant [OPTIONS] [TARGET [TARGET2 [TARGET3] ...]]

DESCRIPTION

       Like  make  ant is a tool by which projects can be build. But unlike it, ant is based on Java which means it will run on every platform for
       which a Java Virtual Machine is available. This makes it a great tool for building Java software.

       By default it takes information from build.xml which describes the targets.

       -help, -h
	      print help on the command line options

       -projecthelp, -p
	      print project help information

       -version
	      print the version information

       -diagnostics
	      print information that might be helpful to diagnose or report problems

       -quiet, -q
	      be extra quiet

       -verbose, -v
	      be extra verbose

       -debug, -d
	      print debugging information

       -emacs, -e
	      produce logging information without adornments

       -lib <path>
	      specifies a path to search for jars and classes

       -logfile <file>
	      use the given file to output log to

       -logger <classname>
	      use the given class to perform logging

       -listener <classname>
	      add an instance of the given class as a project listener

       -noinput
	      do not allow interactive input

       -buildfile, -file, -f <file>
	      use the given buildfile instead of the default build.xml file. This is the ant equivalent of Makefile

       -D<property>=<value>
	      use value for the given property

       -keep-going, -k
	      execute all targets that do not depend on failed target(s)

       -propertyfile <name>
	      load all properties from file with -D properties taking precedence

       -inputhandler <class>
	      the class which will handle input requests

       -find, -s <file>
	      search for buildfile towards the root of the filesystem and use it

       -nice <number>
	      A niceness value for the main thread: 1 (lowest) to 10 (highest); 5 is the default

       -nouserlib
	      Run ant without using the jar files from ${user.home}/.ant/lib

       -noclasspath
	      Run ant without using CLASSPATH

       -autoproxy
	      Java 1.5+ : use the OS proxies

       -main <class>
	      Override Ant's normal entry point

SEE ALSO

       make(1) mvn(1)

AUTHOR

       This manpage is written by Egon Willighagen <egonw@sci.kun.nl>

Debian GNU/Linux						     Feb 2010								    ant(1)
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