Message11199

jython does support the inspect module in a normal .py file:

$ cat test.py
import inspect

def function():
  frame = inspect.currentframe()
  print inspect.getframeinfo(frame)

function()


$java -jar dist/jython-standalone.jar -c 'import test'
Traceback(filename='test.py', lineno=5, function='function', code_context=['  print inspect.getframeinfo(frame)\n'], index=0)


However if the python module is compiled into bytecode this does not work any more

$ python -m py_compile test.py
$ rm test.py
$ java -jar dist/jython-standalone.jar -c 'import pycimport; import test'

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/home/fwyzard/src/jython/src/dist/Lib/pycimport.py", line 72, in load_module
    return __makeModule( fullname, code, filename )
  File "/home/fwyzard/src/jython/src/dist/Lib/pycimport.py", line 25, in __makeModule
    exec code in module.__dict__
  File "test.py", line 7, in <module>
  File "test.py", line 7, in <module>
  File "test.py", line 5, in function
  File "test.py", line 5, in function
  File "/home/fwyzard/src/jython/src/dist/Lib/inspect.py", line 1015, in getframeinfo
    filename = getsourcefile(frame) or getfile(frame)
  File "/home/fwyzard/src/jython/src/dist/Lib/inspect.py", line 448, in getsourcefile
    filename = getfile(object)
  File "/home/fwyzard/src/jython/src/dist/Lib/inspect.py", line 423, in getfile
    raise TypeError('{!r} is not a module, class, method, '
TypeError: <code object function at 0x2, file "test.py", line 3> is not a module, class, method, function, traceback, frame, or code object


while it still works as expected with the C python interpreter:

$ python2.7 -c 'import test'
Traceback(filename='test.py', lineno=5, function='function', code_context=None, index=None)


The problem seems to be that code objects from a bytecode file are not of type types.CodeType, but of type org.python.core.PyBaseCode (which is its base class).

A possible fix is to change Lib/types.py from

CodeType = type(_f.func_code)

to

CodeType = org.python.core.PyBaseCode

as in the attached patch.

An other possibility would be to change only Lib/inspect.py to explicitly check for org.python.core.PyBaseCode in addition to types.CodeType. The change to Lib/types.py seems more general, though.