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

Use low overhead object heritence in Js (Object.create vs new)...

Use low overhead object heritence in Js (Object.create vs new) the use of XX.prototype = new YY(); Does trigger the constructor of YY without the nead for it. `Object.create` does go around this limitation and target browser that are relatively Old. Cf https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/create for more info It might help to get rid of some logic in constructors that check wether some options are passed in, that were causing errors on noteboko load. Typically `if(element){ }` on Abstract `Cell` constructor.

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      """ A Qt API selector that can be used to switch between PyQt4/5 and PySide.

      This uses the ETS 4.0 selection pattern of:

      PySide first, PyQt4 (API v2.) second, then PyQt5.

      Do not use this if you need PyQt4 with the old QString/QVariant API.

      """

      import os

      from IPython.external.qt_loaders import (load_qt, QT_API_PYSIDE,

                                               QT_API_PYQT, QT_API_PYQT5)

      QT_API = os.environ.get('QT_API', None)

      if QT_API not in [QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5, None]:

          raise RuntimeError("Invalid Qt API %r, valid values are: %r, %r, %r" %

                             (QT_API, QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5))

      if QT_API is None:

          api_opts = [QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5]

      else:

          api_opts = [QT_API]

      QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts)

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				""" A Qt API selector that can be used to switch between PyQt4/5 and PySide.

				This uses the ETS 4.0 selection pattern of:
				PySide first, PyQt4 (API v2.) second, then PyQt5.

				Do not use this if you need PyQt4 with the old QString/QVariant API.
				"""

				import os

				from IPython.external.qt_loaders import (load_qt, QT_API_PYSIDE,
				QT_API_PYQT, QT_API_PYQT5)

				QT_API = os.environ.get('QT_API', None)
				if QT_API not in [QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5, None]:
				raise RuntimeError("Invalid Qt API %r, valid values are: %r, %r, %r" %
				(QT_API, QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5))
				if QT_API is None:
				api_opts = [QT_API_PYSIDE, QT_API_PYQT, QT_API_PYQT5]
				else:
				api_opts = [QT_API]

				QtCore, QtGui, QtSvg, QT_API = load_qt(api_opts)