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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