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

don't force instantiation of contents manager by default...

don't force instantiation of contents manager by default this is never used and never needed, and results in the instantiation of a contents manager that is immediately discarded.

Peter Würtz - - Load All Authors

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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)