https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65366
Bug ID: 65366 Summary: gdbhooks.py is incompatible with Python3 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: other Assignee: unassigned at gcc dot gnu.org Reporter: jan.kratochvil at redhat dot com Host: x86_64-linux-gnu GDB Python support upstream has always been compatible with Python3. Fedora since F-22 builds GDB with Python3 by default (<=F-21 GDB used Python2). gdbhooks.py in GCC trunk is compatible with Python2 but not Python3. gdb-7.9-10.fc23.x86_64 (gdb) source /home/jkratoch/redhat/gcchead/gcc/c/../gdbhooks.py File "/home/jkratoch/redhat/gcchead/gcc/c/../gdbhooks.py", line 372 print format_[i] ^ SyntaxError: Missing parentheses in call to 'print' Additionally after fixing the 'print' incompatibility one gets randomly: dependence_info = {clique = 257, Python Exception <class 'NameError'> name 'long' is not defined: base = 1}}}, type = }, I have a patch, going to post it.