[Python-Dev] BDFL-Delegate appointments for several PEPs (original) (raw)

Cameron Simpson cs at cskk.id.au
Sun Mar 24 19:00:36 EDT 2019

On 24Mar2019 17:02, Terry Reedy <tjreedy at udel.edu> wrote:

On 3/24/2019 8:21 AM, Nick Coghlan wrote:

* PEP 499: Binding "-m" executed modules under their module name as well as _main_ My brief response: +1 unless there is a good reason not.

There turn out to be some subtle side effects. The test suite turned up one (easily fixed) in pdb, but there are definitely some more things to investigate. Nick has pointed out pickle and the "python -i" option.
I'm digging into these. (Naturally, I have never before used the pdb or pickle modules, or the -i option :-)

There have been multiple double module problems reported on python-list and likely stackoverflow. And would there be any impact on circular imports?

Well, by binding the -m module to both main and its name as denoted on the command line one circular import is directly short circuited.
Aside from the -m module itself, I don't think there should be any other direct effect on circular imports.

Did you have a specific scenario in mind?

Cheers, Cameron Simpson <cs at cskk.id.au>

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