Message 55577 - Python tracker (original) (raw)

It definitely sounds like a compiler bug. Unless you can provide further details to the specific error in the C code of Python, it's likely that we can do little about it.

If you want to analyze this further, here is a number of things you can try:

• compile Python at various optimization levels. A compiler bug often manifests itself only at a specific set of optimization flags.
• try tracing this invocation of .find() in a debugger. Doing so at a lower optimization level is easier, since the compiler may have inlined the various functions that form .find() under optimization.
• if the debugger does not allow to pinpoint the erroneous function, add printf statements. Most of the code to study is in Objects/stringobject.c and Objects/stringlib/find.h.