[Python-Dev] Request for Pronouncement: PEP 441 (original) (raw)

[Python-Dev] Request for Pronouncement: PEP 441 - Improving Python ZIP Application Support

Paul Moore p.f.moore at gmail.com
Mon Feb 23 20:26:49 CET 2015

On 23 February 2015 at 19:22, Ethan Furman <ethan at stoneleaf.us> wrote:

This could be a completely stupid question, but how does the zip file know where the individual files are? More to the point, does the index work via relative or absolute offset? If absolute, wouldn't the index have to be rewritten if the zip portion of the file moves?

Essentially the index is stored at the end of the file, and contains relative offsets to all the files. Gory details at https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT Paul

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