[Ironpython-users] Patch: Warn user when using old print syntax
m.schaber at 3s-software.com
Thu Oct 13 10:26:18 CEST 2011
Von: ironpython-users-bounces+m.schaber=3s-software.com at python.org
> Von: Markus Schaber
> > The patch below emits a warning during Compilation for print
> > statements whose argument list does not start with a '(' if Py3k warnings
> are enabled.
> Somehow, this patch leads to a StackOverFlowException in some cases, so
> please don't apply it.
> (It seemed to work fine in my tests yesterday, though.)
The reason for that is that my tests yesterday involved only Compilation of ScriptSources. When actually executing a script, however, import of modules triggers their compilation, and then warnings are dispatched to the warnings module, instead of the ErrorListener used for Compilation.
> I'm still investigating, but it seems that ErrorSink.Add tries to import
> the Warnings module, which itself triggers that warning recursively.
> Maybe we should find a way to exclude the standard library from this kind
> of warning? I'll try to check how it is done for -t - or do we simply rely
> on the fact that the warnings module itself has a consistent indentation?
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