[Python-Dev] PEP 553: Built-in debug()

Glenn Linderman v+python at g.nevcal.com
Thu Sep 7 19:58:32 EDT 2017

On 9/7/2017 4:19 PM, Terry Reedy wrote:
> A somewhat separate point: the name breakpoint() is slightly 
> misleading, which has consequences if it is (improperly) called more 
> than once. While breakpoint() acts as a breakpoint, what it does (at 
> least in the default pdb case) is *initialize* and start a *new* 
> debugger, possibly after an import. 

So maybe the original debug() call should be renamed debugger() [but 
with the extra optional parameters discussed], and an additional 
breakpoint() call could be added that would be much more like hitting a 
breakpoint in the already initialized debugger.

There seem to be two directions to go here: If breakpoint is called 
without a prior call to debugger, it should (1) call debugger implicitly 
with defaults, or (2) be a noop.

I prefer the latter, but either is workable.  Or, one could add all 
those parameters to every breakpoint() call, which makes (1) more 
workable, but code more wordy.
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