I tried to compile python 2.4 inspect.py module in
Jython but it throwed an exception. The line 749 in the
inspect.py module caused the exception which is

start = lineno - 1 - context//2

The code corresponding to it was also shown.

But when I modified that line to 

start = lineno - 1 - context/2

it worked.

Regards,
S.Prasanna

Code:

if context > 0:
        start = lineno - 1 - context//2
        try:
            lines, lnum = findsource(frame)
        except IOError:
            lines = index = None
        else:
            start = max(start, 1)
            start = min(start, len(lines) - context)
            lines = lines[start:start+context]
            index = lineno - 1 - start
    else:
        lines = index = None