[issue20218] Add methods to `pathlib.Path`: `write_text`, `read_text`, `write_bytes`, `read_bytes`

[Ram Rachum]

Ram Rachum added the comment:

Okay, different approach: How about having a mode argument with a default? (Defaults of 'rb', 'r', 'wb', 'w' respectively.)

This way users who wish to use append, exclusive, or any other future mode will be able to do that, but we won't be adding too many keywords to the API. We could add sanity checks to the `mode` if you wish.

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<http://bugs.python.org/issue20218>
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