Specifying any command resuming execution
(currently :pdbcmd:`continue`, :pdbcmd:`step`, :pdbcmd:`next`,
:pdbcmd:`return`, :pdbcmd:`jump`, :pdbcmd:`quit` and their abbreviations)
- terminates the command :pdbcmd:`list` (as if
+ terminates the command list (as if
that command was immediately followed by end). This is because any time you
resume execution (even with a simple next or step), you may encounter another
breakpoint—which could have its own command list, leading to ambiguities about