upstream/ipython Files · IPython/qt/client.py

Backport PR : Add support for PyQt5....

Backport PR : Add support for PyQt5. This PR adds the new `QT_API_PYQT5` to `IPython/external/qt_loaders.py ` and allows to embed the IPython console in Qt5 Applications. In case of PyQt5, the loader returns a union of `PyQt5.QtGui` and `PyQt5.QtWidgets` acting as a Qt4-QtGui compatibility module. One small fix to `InProcessChannel.__init__` was necessary though. For some reason, when constructing `QtInProcessShellChannel`, the `QtCore.QObject.__init__` initializer from `SuperQObject` indirectly calls the `InProcessChannel.__init__` function, which doesn't have a default constructor and thus fails. I assume this has something to do with the metaclass/multiple inheritance approach IPython uses on QObject. Adding a default value for `client` in `InProcessChannel.__init__` solved the problem for me.

Fernando Perez - - Load All Authors

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      """ Defines a KernelClient that provides signals and slots.

      """

      # Local imports

      from IPython.utils.traitlets import Type

      from IPython.kernel.channels import (

          ShellChannel, IOPubChannel, StdInChannel, HBChannel

      )

      from IPython.kernel import KernelClient

      from .kernel_mixins import (

          QtShellChannelMixin, QtIOPubChannelMixin,

          QtStdInChannelMixin, QtHBChannelMixin,

          QtKernelClientMixin

      )

      class QtShellChannel(QtShellChannelMixin, ShellChannel):

          pass

      class QtIOPubChannel(QtIOPubChannelMixin, IOPubChannel):

          pass

      class QtStdInChannel(QtStdInChannelMixin, StdInChannel):

          pass

      class QtHBChannel(QtHBChannelMixin, HBChannel):

          pass

      class QtKernelClient(QtKernelClientMixin, KernelClient):

          """ A KernelClient that provides signals and slots.

          """

          iopub_channel_class = Type(QtIOPubChannel)

          shell_channel_class = Type(QtShellChannel)

          stdin_channel_class = Type(QtStdInChannel)

          hb_channel_class = Type(QtHBChannel)

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				""" Defines a KernelClient that provides signals and slots.
				"""

				# Local imports
				from IPython.utils.traitlets import Type
				from IPython.kernel.channels import (
				ShellChannel, IOPubChannel, StdInChannel, HBChannel
				)
				from IPython.kernel import KernelClient

				from .kernel_mixins import (
				QtShellChannelMixin, QtIOPubChannelMixin,
				QtStdInChannelMixin, QtHBChannelMixin,
				QtKernelClientMixin
				)

				class QtShellChannel(QtShellChannelMixin, ShellChannel):
				pass

				class QtIOPubChannel(QtIOPubChannelMixin, IOPubChannel):
				pass

				class QtStdInChannel(QtStdInChannelMixin, StdInChannel):
				pass

				class QtHBChannel(QtHBChannelMixin, HBChannel):
				pass


				class QtKernelClient(QtKernelClientMixin, KernelClient):
				""" A KernelClient that provides signals and slots.
				"""

				iopub_channel_class = Type(QtIOPubChannel)
				shell_channel_class = Type(QtShellChannel)
				stdin_channel_class = Type(QtStdInChannel)
				hb_channel_class = Type(QtHBChannel)