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How to use set_exception_context method in autotest

Best Python code snippet using autotest_python

error_context.py

Source:error_context.py

...85def exception_context(e):86    """Return the context of a given exception (or None if none is defined)."""87    if hasattr(e, "_context"):88        return e._context89def set_exception_context(e, s):90    """Set the context of a given exception."""91    e._context = s92def join_contexts(s1, s2):93    """Join two context strings."""94    if s1:95        if s2:96            return "%s --> %s" % (s1, s2)97        else:98            return s199    else:100        return s2101def context_aware(fn):102    """A decorator that must be applied to functions that call context()."""103    def new_fn(*args, **kwargs):104        _new_context()105        _new_context("(%s)" % fn.__name__)106        try:107            try:108                return fn(*args, **kwargs)109            except Exception, e:110                if not exception_context(e):111                    set_exception_context(e, get_context())112                raise113        finally:114            _pop_context()115            _pop_context()116    new_fn.__name__ = fn.__name__117    new_fn.__doc__ = fn.__doc__118    new_fn.__dict__.update(fn.__dict__)119    return new_fn120def _context_message(e):121    s = exception_context(e)122    if s:123        return "    [context: %s]" % s124    else:125        return ""

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