On 2017-09-07 09:50, Barry Warsaw wrote: > On Sep 6, 2017, at 23:10, Terry Reedy <tjre...@udel.edu> wrote: >> >> Environmental variables are set to strings, not objects. It is not clear >> how you intend to handle the conversion. > > The environment variable names a module import path. Without quibbling about > the details of the syntax (because honestly, I’m not convinced it’s a useful > feature), it would work roughly like: > > * The default value is equivalent to PYTHONBREAKPOINTHOOK=pdb.set_trace > * breakpoint() splits the value on the rightmost dot > * modules on the LHS are imported, then the RHS is getattr’d out of that > * That’s the callable breakpoint() calls
Setuptools' entry points [1] use colon between import and function, e.g. "pdb:set_trace" would import pdb and then execute set_trace. The approach can be augmented to allow calling a class method, too. So "package.module:myclass.classfunc" would do : from package.module import myclass myclass.classfunc Regards, Christian [1] https://setuptools.readthedocs.io/en/latest/setuptools.html#automatic-script-creation _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
