在Jython中使用inspect.py的问题

Question

我正在使用Jython中开发的应用程序。当我尝试使用inspect.py时，它显示错误消息。

我的代码是这样

import inspect,os,sys,pprint,imp 
def handle_stackframe_without_leak(getframe): 
    frame = inspect.currentframe() 
    try: 
     function = inspect.getframeinfo(getframe) 
     print inspect.getargvalues(getframe) 
    finally: 
     del frame 
# 
def raja(a): 
    handle_stackframe_without_leak(inspect.currentframe()) 
    print a 
# 
def callraja(): 
    handle_stackframe_without_leak(inspect.currentframe()) 
    raja("raja@ad.com") 
# 
callraja() 
raja("raja@ad.com") 
# 

当我运行这个使用python.exe，没有任何问题。但是，使用此应用程序内抛出以下错误

File "C:\Program Files\jython221ondiffjava\Lib\inspect.py", line 722, in getframeinfo 
File "C:\Program Files\jython221ondiffjava\Lib\inspect.py", line 413, in findsource 
File "C:\Program Files\jython221ondiffjava\Lib\sre.py", line 179, in compile 
File "C:\Program Files\jython221ondiffjava\Lib\sre.py", line 227, in _compile 
File "C:\Program Files\jython221ondiffjava\Lib\sre_compile.py", line 437, in compile 
File "C:\Program Files\jython221ondiffjava\Lib\sre_compile.py", line 421, in _code 
File "C:\Program Files\jython221ondiffjava\Lib\sre_compile.py", line 143, in _compile 
ValueError: ('unsupported operand type', 'branch') 

    at org.python.core.Py.makeException(Unknown Source) 
    at sre_compile$py._compile$1(C:\Program Files\jython221ondiffjava\Lib\sre_compile.py:143) 
    at sre_compile$py.call_function(C:\Program Files\jython221ondiffjava\Lib\sre_compile.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at sre_compile$py._code$11(C:\Program Files\jython221ondiffjava\Lib\sre_compile.py:421) 
    at sre_compile$py.call_function(C:\Program Files\jython221ondiffjava\Lib\sre_compile.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at sre_compile$py.compile$12(C:\Program Files\jython221ondiffjava\Lib\sre_compile.py:437) 
    at sre_compile$py.call_function(C:\Program Files\jython221ondiffjava\Lib\sre_compile.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at org.python.core.PyObject.invoke(Unknown Source) 
    at sre$py._compile$13(C:\Program Files\jython221ondiffjava\Lib\sre.py:227) 
    at sre$py.call_function(C:\Program Files\jython221ondiffjava\Lib\sre.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at sre$py.compile$8(C:\Program Files\jython221ondiffjava\Lib\sre.py:179) 
    at sre$py.call_function(C:\Program Files\jython221ondiffjava\Lib\sre.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at org.python.core.PyObject.invoke(Unknown Source) 
    at inspect$py.findsource$24(C:\Program Files\jython221ondiffjava\Lib\inspect.py:413) 
    at inspect$py.call_function(C:\Program Files\jython221ondiffjava\Lib\inspect.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at inspect$py.getframeinfo$54(C:\Program Files\jython221ondiffjava\Lib\inspect.py:722) 
    at inspect$py.call_function(C:\Program Files\jython221ondiffjava\Lib\inspect.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at org.python.core.PyObject.invoke(Unknown Source) 
    at custom$py.handle_stackframe_without_leak$4(C:\Program Files\<my app>\jars\custom.py:29) 
    at custom$py.call_function(C:\Program Files\<my app>\.\jars\custom.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at definitions$py.gotonotificationprofile$122(C:\Program Files\<my app>\.\jars\definitions.py:1738) 
    at definitions$py.call_function(C:\Program Files\<my app>\.\jars\definitions.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at notificationcases$py.A003$2(C:\Program Files\<my app>\.\jars\notificationcases.py:143) 
    at notificationcases$py.call_function(C:\Program Files\<my app>\.\jars\notificationcases.py) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyFunction.__call__(Unknown Source) 
    at org.python.pycode._pyx171.f$0(003:8) 
    at org.python.pycode._pyx171.call_function(003) 
    at org.python.core.PyTableCode.call(Unknown Source) 
    at org.python.core.PyCode.call(Unknown Source) 
    at org.python.core.Py.runCode(Unknown Source) 
    at org.python.util.PythonInterpreter.execfile(Unknown Source) 

任何帮助将不胜感激。

感谢 Rajasankar

Answer 1

这可能有助于http://grinder.sourceforge.net/faq.html#re-problems。

对于一个快速检查，尝试在findsource方法添加import re（C：\ Program Files文件\ jython221ondiffjava \ LIB \ inspect.py）

def findsource(object): 
    """Return the entire source file and starting line number for an object. 
    (...snip...)""" 
    import re 
    file = getsourcefile(object) or getfile(object) 

不能承诺什么，但...

Answer 2

您是否试过在Jython的命令行上运行程序（所以在应用程序之外）？当我用Jython 2.2.1或Jython 2.5.0运行你的程序时，我得到和Python一样的输出结果。