[Distutils] formencode as .egg in Debian ??
ianb at colorstudy.com
Tue Nov 22 17:19:12 CET 2005
Phillip J. Eby wrote:
>>Note also that in many cases, the package will be a single .egg file,
>>(analagous to a Java .jar file) rather than a directory, and files are
>>preferable to directories in most cases as they make Python import
> Yes, it's true, zipfile import processing is faster than normal import
> processing; it is in fact one of the reasons zipfile imports were added to
> Python, because the zip directories are cached. A zipfile import lookup is
> a single dictionary lookup, whereas a directory import lookup requires
> multiple stat() calls. For all practical purposes, zipfiles added to
> sys.path are free after the initial directory read operation.
Maybe an easier way to understand this (at least my impression) is that
zip files are treated as read-only. Any directory on sys.path gets
scanned everytime a new module is imported. And you never know if
someone added something, so you do it all over again each time. A zip
file is scanned only once.
Ian Bicking / ianb at colorstudy.com / http://blog.ianbicking.org
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