Serhiy Storchaka added the comment:
> What is the problem with these changes?
Usually CPython team avoids code churn without serious reasons. Performance
reasons for the change PySys_GetObject("stdout") to
_PySys_GetObjectId(&_PyId_stdout) are ridiculous. You changed hundreds lines of
code for speed up interactive mode by perhaps several microseconds.
> Errors become more unlikely because objects are only initialized once, near
> startup. So it put also less pressure on code handling errors :) (it is
> usually the least tested part of the code)
If there are bugs in code handling errors, they should be fixed in maintenance
releases too.
> You mean for PyRun_InteractiveOneObject()? Oh, it can be made private, but
> what is the problem of adding yet another PyRun_Interactive*() function?
> There are already a lot of them :-)
And this is a problem. Newly added function is not even documented.
> I also worked hard to support unencodable filenames: using char*, you cannot
> support arbitrary Unicode filename on Windows. That's why a added many
> various functions with "Object" suffix. Some examples:
> PyWarn_ExplicitObject(), PyParser_ParseStringObject(),
> PyImport_AddModuleObject(), etc.
"One bug per bug report" as Martin says.
> Another problem is that PyUnicode_FromString() failure is not handled
> correctly in some cases. PyUnicode_FromString() can fail because an decoder
> error, but also because of a MemoryError.
It can't fail on "stdout" because an decoder error.
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<http://bugs.python.org/issue19512>
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