Xavier de Gaye <xdeg...@gmail.com> added the comment:
@Saim wrote > https://docs.python.org/3/reference/compound_stmts.html#the-try-statement says This is correct, the disassembly of foo.py below demonstrates that point: BEGIN_FINALLY at bytecode index 36 starts the implementation of the 'finally' clause that deletes 'err'. But pdb is a line debugger, not a debugger at the bytecode level, so when 'foo = 1' is replaced by 'import pdb; pdb.set_trace()', the first line where pdb may stop is at line 6 and since foo() last line is line 5, pdb stops at the 'return' event for this function. ======= foo.py ======== def foo(): try: 1/0 except Exception as err: foo = 1 import dis dis.dis(foo) =========================== 2 0 SETUP_FINALLY 12 (to 14) 3 2 LOAD_CONST 1 (1) 4 LOAD_CONST 2 (0) 6 BINARY_TRUE_DIVIDE 8 POP_TOP 10 POP_BLOCK 12 JUMP_FORWARD 38 (to 52) 4 >> 14 DUP_TOP 16 LOAD_GLOBAL 0 (Exception) 18 COMPARE_OP 10 (exception match) 20 POP_JUMP_IF_FALSE 50 22 POP_TOP 24 STORE_FAST 0 (err) 26 POP_TOP 28 SETUP_FINALLY 8 (to 38) 5 30 LOAD_CONST 1 (1) 32 STORE_FAST 1 (foo) 34 POP_BLOCK 36 BEGIN_FINALLY >> 38 LOAD_CONST 0 (None) 40 STORE_FAST 0 (err) 42 DELETE_FAST 0 (err) 44 END_FINALLY 46 POP_EXCEPT 48 JUMP_FORWARD 2 (to 52) >> 50 END_FINALLY >> 52 LOAD_CONST 0 (None) 54 RETURN_VALUE =========================== ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue36537> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
