[PATCH 4/4]: Enable readline under "python"

[Khoo Yit Phang]

Hi,

Here's the last Python patch: this enables readline support under "python" using a GDB-specific mechanism, and disables the standard Python readline module.

This is somewhat of a workaround: unfortunately, there is no easy way to make GDB and Python use libreadline without conflicting with each other, since libreadline is configured essentially using global variables. Using the standard Python readline module will lead to strange conflicts, e.g., changing key bindings or tab-completion. I've thought of two possible solutions which are both rather complicated: 1) either reimplement the readline module that carefully swaps configurations between GDB and Python; 2) or run Python's readline in a separate controlling terminal with a proxy readline module in GDB.

Thank you,

Yit
July 16, 2012

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