Hello all,
This is some information that might useful in any future work to
incorporate jython 2.7 once it is out of beta. Jython-2.7b1 deprecates
func_code. I've gotten pig 11.1 to work with jython-2.7b1 by making the
changes listed in the svn diff below. I've run a number of my pig scripts
with this build, and haven't encountered any problems so far.
compile-sources:
[javac] Compiling 7 source files to
/home/cflynn/pig-release-0.11.1/build/classes
[javac]
/home/cflynn/pig-release-0.11.1/src/org/apache/pig/scripting/jython/JythonFunction.java:57:
cannot find symbol
[javac] symbol : variable func_code
[javac] location: class org.python.core.PyFunction
[javac] num_parameters = ((PyBaseCode)
f.func_code).co_argcount;
[javac] ^
[javac]
/home/cflynn/pig-release-0.11.1/src/org/apache/pig/scripting/jython/JythonFunction.java:108:
cannot find symbol
[javac] symbol : variable func_code
[javac] location: class org.python.core.PyFunction
[javac] if (tuple == null || (num_parameters == 0 &&
!((PyTableCode)function.func_code).varargs)) {
[javac]
^
[javac] 2 errors
BUILD FAILED
cflynn@coyote:~pig-release-0.11.1$ svn diff
Index: src/org/apache/pig/scripting/jython/JythonFunction.java
===================================================================
--- src/org/apache/pig/scripting/jython/JythonFunction.java (revision
1497765)
+++ src/org/apache/pig/scripting/jython/JythonFunction.java (working
copy)
@@ -54,7 +54,7 @@
try {
f = JythonScriptEngine.getFunction(filename, functionName);
this.function = f;
- num_parameters = ((PyBaseCode) f.func_code).co_argcount;
+ num_parameters = ((PyBaseCode) f.__code__).co_argcount;
PyObject outputSchemaDef =
f.__findattr__("outputSchema".intern());
if (outputSchemaDef != null) {
this.schema =
Utils.getSchemaFromString(outputSchemaDef.toString());
@@ -105,7 +105,7 @@
@Override
public Object exec(Tuple tuple) throws IOException {
try {
- if (tuple == null || (num_parameters == 0 &&
!((PyTableCode)function.func_code).varargs)) {
+ if (tuple == null || (num_parameters == 0 &&
!((PyTableCode)function.__code__).varargs)) {
// ignore input tuple
PyObject out = function.__call__();
return JythonUtils.pythonToPig(out);
Index: ivy/libraries.properties
===================================================================
--- ivy/libraries.properties (revision 1497765)
+++ ivy/libraries.properties (working copy)
@@ -61,7 +61,7 @@
json-simple.version=1.1
junit.version=4.11
jruby.version=1.6.7
-jython.version=2.5.3
+jython.version=2.7-b1
rhino.version=1.7R2
antlr.version=3.4
stringtemplate.version=4.0.4
