[issue15819] Unable to build Python out-of-tree when source tree is readonly.

[Roumen Petrov]

Roumen Petrov added the comment:

To update .hgtouch is not enough.
Grammar, AST and importlib should left in source tree as before.

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nosy: +rpetrov

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue15819>
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