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from IPython.core.debugger import Pdb
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from IPython.core.completer import IPCompleter
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from .ptutils import IPythonPTCompleter
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from prompt_toolkit.token import Token
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from prompt_toolkit.shortcuts import create_prompt_application
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from prompt_toolkit.interface import CommandLineInterface
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from prompt_toolkit.enums import EditingMode
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import sys
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class TerminalPdb(Pdb):
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def __init__(self, *args, **kwargs):
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Pdb.__init__(self, *args, **kwargs)
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self._ptcomp = None
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self.pt_init()
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def pt_init(self):
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def get_prompt_tokens(cli):
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return [(Token.Prompt, self.prompt)]
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if self._ptcomp is None:
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compl = IPCompleter(shell=self.shell,
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namespace={},
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global_namespace={},
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parent=self.shell,
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)
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self._ptcomp = IPythonPTCompleter(compl)
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self._pt_app = create_prompt_application(
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editing_mode=getattr(EditingMode, self.shell.editing_mode.upper()),
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history=self.shell.debugger_history,
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completer= self._ptcomp,
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enable_history_search=True,
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mouse_support=self.shell.mouse_support,
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get_prompt_tokens=get_prompt_tokens
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)
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self.pt_cli = CommandLineInterface(self._pt_app, eventloop=self.shell._eventloop)
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def cmdloop(self, intro=None):
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"""Repeatedly issue a prompt, accept input, parse an initial prefix
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off the received input, and dispatch to action methods, passing them
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the remainder of the line as argument.
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override the same methods from cmd.Cmd to provide prompt toolkit replacement.
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"""
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if not self.use_rawinput:
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raise ValueError('Sorry ipdb does not support use_rawinput=False')
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self.preloop()
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try:
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if intro is not None:
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self.intro = intro
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if self.intro:
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self.stdout.write(str(self.intro)+"\n")
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stop = None
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while not stop:
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if self.cmdqueue:
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line = self.cmdqueue.pop(0)
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else:
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self._ptcomp.ipy_completer.namespace = self.curframe_locals
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self._ptcomp.ipy_completer.global_namespace = self.curframe.f_globals
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try:
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line = self.pt_cli.run(reset_current_buffer=True).text
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except EOFError:
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line = 'EOF'
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line = self.precmd(line)
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stop = self.onecmd(line)
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stop = self.postcmd(stop, line)
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self.postloop()
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except Exception:
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raise
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def set_trace(frame=None):
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"""
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Start debugging from `frame`.
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If frame is not specified, debugging starts from caller's frame.
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"""
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TerminalPdb().set_trace(frame or sys._getframe().f_back)
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if __name__ == '__main__':
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import pdb
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# IPython.core.debugger.Pdb.trace_dispatch shall not catch
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# bdb.BdbQuit. When started through __main__ and an exception
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# happened after hitting "c", this is needed in order to
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# be able to quit the debugging session (see #9950).
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old_trace_dispatch = pdb.Pdb.trace_dispatch
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pdb.Pdb = TerminalPdb
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pdb.Pdb.trace_dispatch = old_trace_dispatch
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pdb.main()
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