[Python-Dev] Reading Python source file (original) (raw)

Hrvoje Niksic hrvoje.niksic at avl.com
Wed Nov 18 10:57:31 EST 2015

On 11/18/2015 04:48 PM, Guido van Rossum wrote:

That trick doesn't work unless the data looks like Python comments or data (e.g. a docstring). Python has always insisted on being able to parse until EOF. The only extreme case would be a small script followed by e.g. 4 GB of comments (where the old parser would indeed be more efficient). But unless you can point me to an occurrence of this in the wild I'm going to speculate that you just made this up based on the shell analogy (which isn't perfect).

If this never really worked in Python, feel free to drop the issue. I may be misremembering the language in which scripts I saw using this techniques years ago were written - most likely sh or Perl.

Hrvoje

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