[Python-Dev] how to easily consume just the parts of eggs that are good for you

Wed Apr 9 21:30:17 CEST 2008

On Apr 8, 2008, at 4:36 PM, Greg Ewing wrote:
>> I discovered another annoyance with eggs the other day -- it
> seems that tracebacks referring to egg-resident files contain the
> pathname of some temporary directory that existed when the egg
> was being packaged, rather than the one it actually exists in
> at run time.

Brian Warner and I discovered that issue yesterday, too. We 
determined that if you install the egg (with easy_install or with a 
setuptools-powered ./setup.py install) in unzipped form then the 
source file names get rewritten so that your stack traces come with 
source lines.
If you have a package which requires stack traces to come with source 
lines, then you could pass "zip_safe=False" to the call to setup().
I would prefer that zip_safe=False were the default and that either 
the producer or the consumer of a package had to specifically choose 
zip_safe=True in order to install eggs in zipped form.
I've opened a ticket on my setuptools trac:
http://allmydata.org/trac/setuptools/ticket/4
Regards,
Zooko