I suggest to include the following in opcode.h:

#ifdefPy_DEBUGconstchar*const_PyOpcode_OpName[256]= {    [0]="CACHE",    [1]="POP_TOP",    ...    [255]="DO_TRACING",};#endif

The goal is to make debugging easier. Possible uses:

• This would greatly improve the readability of the output of the LLTRACE feature of ceval.
• This could help make opcode stats files readable between different interpreters without worry of opcode mismatches.
• Other debugging faculties like the#if 0-ed outdump_instr anddump_basicblock ofcompile.c become easier to understand.
• One-off printf-style debugging of ceval.c and related functionality becomes easier.