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bug#16875: python, comint-mode: Large output makes Emacs freeze

From: Andreas Röhler
Subject: bug#16875: python, comint-mode: Large output makes Emacs freeze
Date: Wed, 25 Jun 2014 07:27:01 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Icedove/24.6.0

On 25.06.2014 03:19, Fabián Ezequiel Gallina wrote:

This looks related to:

To a certain extend.
There some more operations done by comint, which aren't needed when executing 
Python code from source but may slow down it.

Thus solution in python-mode.el is to surpass comint-mode completely and use 
"start-process" and "process-send-string"

See py-fast-process.

Some ways to attenuate irresponsiveness:

1. Disable python shell font-locking:
    (setq python-shell-enable-font-lock nil)

2. Use Python's pprint to print such expressions, this makes it behave
    pretty much like iPython:

         >>> import pprint
         >>> pprint.pprint([[[False] * 200 for i in range(3)] for j in 

Indeed, "pprint" should solve it already. Maybe make that the default? IMO 
looks better anyway.


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