Issue1810514
Created on 2007-10-10.02:08:15 by liaoya, last changed 2007-10-11.06:20:03 by cgroves.
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importerror.zip
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liaoya,
2007-10-10.02:08:16
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Demo module for import testing |
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| msg1967 (view) |
Author: liaoya (liaoya) |
Date: 2007-10-10.02:08:15 |
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The jython.bat interactive mode can not import the python module which name begin com or org.
Please delete cachedir under JYTHON directory before each test. I find if the module is imported successfully, the import error will not appear again.
I put three different module in the attachment, they are
com.ssc.sstz.const, oeg.ssc.sstz.const, peg.ssc.sstz.const
ATTENTION: Delete cachedir
If you run with jython.bat under JYTHON directory and enter interactive mode run the command below
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import sys
sys.path.append(r"C:\HShen\workspace\Europa\JythonDemo\src") # change the module path to your uncompress directory
print sys.path
import com.ssc.sstz.const
import org.ssc.sstz.const
import peg.ssc.sstz.const
print com.ssc.sstz.const.CONST
print org.ssc.sstz.const.CONST
print peg.ssc.sstz.const.CONST
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Then you will find import com.ssc.sstz.const and org.ssc.sstz.const fail, and peg.ssc.sstz.const success
And I find if I put python module in the front of sys.path, It's OK.
ATTENTION: Delete cachedir
If you run with jython.bat under JYTHON directory and enter interactive mode run the command below
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import sys
sys.path.insert(0, r"C:\HShen\workspace\Europa\JythonDemo\src") # change the module path to your uncompress directory
print sys.path
import com.ssc.sstz.const
import org.ssc.sstz.const
import peg.ssc.sstz.const
print com.ssc.sstz.const.CONST
print org.ssc.sstz.const.CONST
print peg.ssc.sstz.const.CONST
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All the three module are imported successfully.
And I find this problem appear win the jython.bat interactive mode or you run the python script JYTHON HOME directory.
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| msg1968 (view) |
Author: liaoya (liaoya) |
Date: 2007-10-10.02:30:25 |
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This problem exists in jython 2.2 jython 2.2.1rc2. My JDK is sun jdk 1.5.0_12-b04
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| msg1969 (view) |
Author: Charlie Groves (cgroves) |
Date: 2007-10-11.06:20:03 |
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This is because the '__classpath__' entry is used by Jython to decide when to load import Java classes. If you want to import com and org Python packages, they'll need to be before __classpath__ in sys.path since Java includes classes in com and org Java packages by default. Jython itself includes com and org Java packages. It's going to be difficult to get much use out of the Java capabilities of Jython if you have Python code in com or org since most of the interesting Java code lives in those packages as well.
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| 2007-10-10 02:08:15 | liaoya | create | |
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