[New-bugs-announce] [issue19720] suppress context for some exceptions in importlib?

[Eric Snow]

New submission from Eric Snow:

Some exceptions in importlib are raised from within except blocks, resulting in chained tracebacks. [1]  For at least some of these we should consider suppressing the exception context.

For example (for [1]):

        try:
            path = parent_module.__path__
        except AttributeError:
            msg = (_ERR_MSG + '; {} is not a package').format(name, parent)
            raise ImportError(msg, name=name) from None

[1] http://hg.python.org/cpython/file/default/Lib/importlib/_bootstrap.py#l2088

----------
messages: 203830
nosy: brett.cannon, eric.snow
priority: low
severity: normal
stage: needs patch
status: open
title: suppress context for some exceptions in importlib?
type: enhancement
versions: Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19720>
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