[issue21159] configparser.InterpolationMissingOptionError is not very intuitive

[Laurence Rowe]

Laurence Rowe added the comment:

This change is causing a problem for boto under 3.5.1 (works on 3.5.0):

TypeError: get() got an unexpected keyword argument 'raw'
> /usr/local/Cellar/python3/3.5.1/Frameworks/Python.framework/Versions/3.5/lib/python3.5/configparser.py(406)_interpolate_some()
-> rawval = parser.get(section, option, raw=True, fallback=rest)

boto bug report: https://github.com/boto/boto/issues/3433

This is because boto is subclassing ConfigParser and its get method does not include the raw argument. A quick search shows that this also affects Kazam am circus.

Circus fixed it by adding **kwargs to the method. https://github.com/circus-tent/circus/commit/d0d2ac4fd843bb9f050a8c678956fe3682371001

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nosy: +lrowe

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