upstream/ipython Files · IPython/quarantine/ipy_pydb.py

Merge pull request from takluyver/import-performance...

Merge pull request from takluyver/import-performance Import performance Defer various imports for a small reduction in startup time. IPython.lib.__init__ previously loaded IPython.lib.inputhook to export some of its functions. This meant that importing anything from IPython.lib also loaded inputhook. For now, I've just removed that import, but that is an API change, because the functions are no longer accessible as e.g. IPython.lib.enable_qt4 Added a note about the API change. Timing command, borrowed from Openoffice to simulate cold start: $ sync ; echo 3 | sudo tee /proc/sys/vm/drop_caches; time ipython3 -c pass Results with this branch: 7.68, 7.64, 7.35, 7.38 s 'real' Results with master: 8.17, 8.04, 7.81, 7.77

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      import inspect

      from IPython.core import ipapi

      from IPython.utils.process import arg_split

      ip = ipapi.get()

      from IPython.core import debugger

      def call_pydb(self, args):

          """Invoke pydb with the supplied parameters."""

          try:

              import pydb

          except ImportError:

              raise ImportError("pydb doesn't seem to be installed.")

          if not hasattr(pydb.pydb, "runv"):

              raise ImportError("You need pydb version 1.19 or later installed.")

          argl = arg_split(args)

          # print argl # dbg

          if len(inspect.getargspec(pydb.runv)[0]) == 2:

              pdb = debugger.Pdb(color_scheme=self.colors)

              ip.history_saving_wrapper( lambda : pydb.runv(argl, pdb) )()

          else:

              ip.history_saving_wrapper( lambda : pydb.runv(argl) )()

      ip.define_magic("pydb",call_pydb)

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				import inspect
				from IPython.core import ipapi
				from IPython.utils.process import arg_split
				ip = ipapi.get()

				from IPython.core import debugger

				def call_pydb(self, args):
				"""Invoke pydb with the supplied parameters."""
				try:
				import pydb
				except ImportError:
				raise ImportError("pydb doesn't seem to be installed.")

				if not hasattr(pydb.pydb, "runv"):
				raise ImportError("You need pydb version 1.19 or later installed.")

				argl = arg_split(args)
				# print argl # dbg
				if len(inspect.getargspec(pydb.runv)[0]) == 2:
				pdb = debugger.Pdb(color_scheme=self.colors)
				ip.history_saving_wrapper( lambda : pydb.runv(argl, pdb) )()
				else:
				ip.history_saving_wrapper( lambda : pydb.runv(argl) )()


				ip.define_magic("pydb",call_pydb)