Jesus Cea wrote: > Recently we added "-Wd" flags to buildbots. I was wondering about the > effect of it. documentation doesn't help. > > I could study the code, but I guess other people can have the very same > question and I think the answer should be in the archives, somewhere. I studied the code ;) -Wd enables all warnings. It adds 'd' to sys.warnoptions, which in turn adds a new first entry to _warnings.filters which matches all warnings and enables the "default" behavior, which is to show it once per execution of the Python interpreter. For example, if you run "python -Wd" on the current trunk (2.7) and execute the statement "import bsddb" you get a PendingDeprecationWarning exception. Without -Wd that warning would be suppressed. Hope I didn't miss any important subtleties, //larry//
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