gh-103737: IDLE - Remove unneeded .keys() for dict iteration (#110960)

Add comments where .keys() is needed.
Leave debugger usages along because situation is unclear as indicated in expanded comment.
Most testing is manual.
This commit is contained in:
Terry Jan Reedy 2023-10-18 04:14:52 -04:00 committed by GitHub
parent 77dbd95609
commit baefbb21d9
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8 changed files with 28 additions and 26 deletions

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@ -747,10 +747,11 @@ def showtraceback(self):
self.tkconsole.open_stack_viewer()
def checklinecache(self):
c = linecache.cache
for key in list(c.keys()):
"Remove keys other than '<pyshell#n>'."
cache = linecache.cache
for key in list(cache): # Iterate list because mutate cache.
if key[:1] + key[-1:] != "<>":
del c[key]
del cache[key]
def runcommand(self, code):
"Run the code without invoking the debugger"