https://stackoverflow.com/questions/22557758
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Russianpdb can't do this. But you could build it yourself, in your own program, a couple of ways.
The first way is simply to gate the breakpoint entry with a global variable. Something like this would be pretty trivial (simple example):
_breakpoints = {}
def reset_breakpoints(disabled=[]):
global _breakpoints
_breakpoints = dict((x, False) for x in disabled)
def set_breakpoint(tag, condition=True):
if tag not in _breakpoints:
_breakpoints[tag] = True
if condition:
pdb.set_trace()
else:
if _breakpoints[tag] and condition:
pdb.set_trace()
def mycode():
some_command()
set_breakpoint('mycode0')
another_command()
set_breakpoint('mycode1', x == 4)
The first time through, you won't have it in the dictionary, so you'll add it and halt. But then, you can change the value in the dictionary, and then instead of actually halting, you'll check whether you should or not first. You could do a more complex condition using eval etc. but it's probably easier to do like the above. This is fairly lightweight and leaves you in full control of when things stop. Only thing, you have to remember to initialize the dict yourself (clear it usually) when restarting a debug session, if you set something to False. It doesn't integrate into the debugger, but it doesn't cost much either.
Another thing to remember... you don't have a debugger to control until you are in one. This means that unless you do pdb.run() in the first place, you aren't actually in the debugger, and there's no way to enter the debugger without halting (as far as I know). Once you are in the debugger though, it's possible to get the pdb object though, with some cleverness, using the stack. This is in IPython, and unfortunately the actual stack depth will probably be different depending on which pdb you are using etc., but you can try something like the below to get a reference to the currently-running Pdb object. Once you have it, you can use its interfaces to interact with it directly. An example:
In [331]: %debug pass
NOTE: Enter 'c' at the ipdb> prompt to continue execution.
None
> <string>(1)<module>()
ipdb> import inspect
ipdb> f = inspect.stack()[6]
ipdb> f0 = f[0]
ipdb> myipdb = f0.f_locals['self']
ipdb> myipdb.
myipdb.aliases myipdb.dispatch_exception myipdb.do_next myipdb.fncache myipdb.help_help myipdb.lastcmd myipdb.runctx
myipdb.botframe myipdb.dispatch_line myipdb.do_p myipdb.forget myipdb.help_ignore myipdb.lineinfo myipdb.runeval
myipdb.bp_commands myipdb.dispatch_return myipdb.do_pdef myipdb.format_stack_entry myipdb.help_j myipdb.lineno myipdb.set_break
myipdb.break_anywhere myipdb.displayhook myipdb.do_pdoc myipdb.get_all_breaks myipdb.help_jump myipdb.list_command_pydb myipdb.set_colors
myipdb.break_here myipdb.do_EOF myipdb.do_pfile myipdb.get_break myipdb.help_l myipdb.lookupmodule myipdb.set_continue
myipdb.breaks myipdb.do_a myipdb.do_pinfo myipdb.get_breaks myipdb.help_list myipdb.mainpyfile myipdb.set_next
myipdb.canonic myipdb.do_alias myipdb.do_pinfo2 myipdb.get_file_breaks myipdb.help_n myipdb.misc_header myipdb.set_quit
myipdb.checkline myipdb.do_args myipdb.do_pp myipdb.get_names myipdb.help_next myipdb.new_do_down myipdb.set_return
myipdb.clear_all_breaks myipdb.do_b myipdb.do_psource myipdb.get_stack myipdb.help_p myipdb.new_do_frame myipdb.set_step
myipdb.clear_all_file_breaks myipdb.do_break myipdb.do_q myipdb.handle_command_def myipdb.help_pdb myipdb.new_do_quit myipdb.set_trace
myipdb.clear_bpbynumber myipdb.do_bt myipdb.do_quit myipdb.help_EOF myipdb.help_pp myipdb.new_do_restart myipdb.set_until
myipdb.clear_break myipdb.do_c myipdb.do_r myipdb.help_a myipdb.help_q myipdb.new_do_up myipdb.setup
myipdb.cmdloop myipdb.do_cl myipdb.do_restart myipdb.help_alias myipdb.help_quit myipdb.nohelp myipdb.shell
myipdb.cmdqueue myipdb.do_clear myipdb.do_return myipdb.help_args myipdb.help_r myipdb.onecmd myipdb.stack
myipdb.color_scheme_table myipdb.do_commands myipdb.do_retval myipdb.help_b myipdb.help_restart myipdb.parseline myipdb.stdin
myipdb.columnize myipdb.do_condition myipdb.do_run myipdb.help_break myipdb.help_return myipdb.parser myipdb.stdout
myipdb.commands myipdb.do_cont myipdb.do_rv myipdb.help_bt myipdb.help_run myipdb.postcmd myipdb.stop_here
myipdb.commands_bnum myipdb.do_continue myipdb.do_s myipdb.help_c myipdb.help_s myipdb.postloop myipdb.stopframe
myipdb.commands_defining myipdb.do_d myipdb.do_step myipdb.help_cl myipdb.help_step myipdb.precmd myipdb.stoplineno
myipdb.commands_doprompt myipdb.do_debug myipdb.do_tbreak myipdb.help_clear myipdb.help_tbreak myipdb.preloop myipdb.trace_dispatch
myipdb.commands_resuming myipdb.do_disable myipdb.do_u myipdb.help_commands myipdb.help_u myipdb.print_list_lines myipdb.undoc_header
myipdb.commands_silent myipdb.do_down myipdb.do_unalias myipdb.help_condition myipdb.help_unalias myipdb.print_stack_entry myipdb.use_rawinput
myipdb.complete myipdb.do_enable myipdb.do_unt myipdb.help_cont myipdb.help_unt myipdb.print_stack_trace myipdb.user_call
myipdb.complete_help myipdb.do_exit myipdb.do_until myipdb.help_continue myipdb.help_until myipdb.print_topics myipdb.user_exception
myipdb.completedefault myipdb.do_h myipdb.do_up myipdb.help_d myipdb.help_up myipdb.prompt myipdb.user_line
myipdb.completekey myipdb.do_help myipdb.do_w myipdb.help_debug myipdb.help_w myipdb.quitting myipdb.user_return
myipdb.completenames myipdb.do_ignore myipdb.do_whatis myipdb.help_disable myipdb.help_whatis myipdb.rcLines
myipdb.curframe myipdb.do_j myipdb.do_where myipdb.help_down myipdb.help_where myipdb.reset
myipdb.curindex myipdb.do_jump myipdb.doc_header myipdb.help_enable myipdb.identchars myipdb.returnframe
myipdb.default myipdb.do_l myipdb.doc_leader myipdb.help_exec myipdb.interaction myipdb.ruler
myipdb.defaultFile myipdb.do_list myipdb.emptyline myipdb.help_exit myipdb.intro myipdb.run
myipdb.dispatch_call myipdb.do_n myipdb.execRcLines myipdb.help_h myipdb.is_pydb myipdb.runcall
ipdb> myipdb.
