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

add parent to Configurable...

add parent to Configurable this adds the notion of a parent and member config, so the config: c.Foo.Bar.attr = value will only set `Bar.attr = value` for `Bar` instances which are members of `Foo` instances. The mechanism for doing this is ```python f = Foo(config=cfg) f.b = Bar(parent=f) ``` This Instance config has higher priority than plain class config for Bar, but still lower priority than direct keyword arg trait assignment. The main implication this has is to change the standard creation of descendants: ```python self.bar = Bar(config=self.config) ``` into a direct parent expression ```python self.bar = Bar(parent=self) ``` This also means that most Configurables will actually have a handle on their parent object.

Chris Beaumont - - Load All Authors

File last commit:

r9722:7ec1888e


                r11062:7f44a560

Download file

             qt.py
        
                    23 lines
            
             | 732 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / IPython / external / qt.py
          
                    History
                
                 |
                  Source
                 | Raw
                 |Copy content
                 |Copy permalink

        Evan Patterson
    
Paved the way for PySide support....

              r3304
            
      """ A Qt API selector that can be used to switch between PyQt and PySide.

        MinRK
    
reorder qt support in kernel...

              r4191
            
      This uses the ETS 4.0 selection pattern of:

      PySide first, PyQt with API v2. second.

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

        Evan Patterson
    
Paved the way for PySide support....

              r3304
            
      """

      import os

        epatters
    
Clean up in Qt API switcher.

              r3306
            
        Chris Beaumont
    
Refactor qt import logic. Fixes #2955

              r9722
            
      from IPython.external.qt_loaders import (load_qt, QT_API_PYSIDE,

                                               QT_API_PYQT)

        Evan Patterson
    
Paved the way for PySide support....

              r3304
            
        Chris Beaumont
    
Refactor qt import logic. Fixes #2955

              r9722
            
      QT_API = os.environ.get('QT_API', None)

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

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

                             (QT_API, QT_API_PYSIDE, QT_API_PYQT))

        epatters
    
Smarter Qt binding selection when environment variable is not specified.

              r3927
            
      if QT_API is None:

        Chris Beaumont
    
Refactor qt import logic. Fixes #2955

              r9722
            
          api_opts = [QT_API_PYSIDE, QT_API_PYQT]

        epatters
    
Clean up in Qt API switcher.

              r3306
            
      else:

        Chris Beaumont
    
Refactor qt import logic. Fixes #2955

              r9722
            
          api_opts = [QT_API]

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

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

Evan Patterson Paved the way for PySide support....	r3304	""" A Qt API selector that can be used to switch between PyQt and PySide.
MinRK reorder qt support in kernel...	r4191
		This uses the ETS 4.0 selection pattern of:
		PySide first, PyQt with API v2. second.

		Do not use this if you need PyQt with the old QString/QVariant API.
Evan Patterson Paved the way for PySide support....	r3304	"""

		import os
epatters Clean up in Qt API switcher.	r3306
Chris Beaumont Refactor qt import logic. Fixes #2955	r9722	from IPython.external.qt_loaders import (load_qt, QT_API_PYSIDE,
		QT_API_PYQT)
Evan Patterson Paved the way for PySide support....	r3304
Chris Beaumont Refactor qt import logic. Fixes #2955	r9722	QT_API = os.environ.get('QT_API', None)
		if QT_API not in [QT_API_PYSIDE, QT_API_PYQT, None]:
		raise RuntimeError("Invalid Qt API %r, valid values are: %r, %r" %
		(QT_API, QT_API_PYSIDE, QT_API_PYQT))
epatters Smarter Qt binding selection when environment variable is not specified.	r3927	if QT_API is None:
Chris Beaumont Refactor qt import logic. Fixes #2955	r9722	api_opts = [QT_API_PYSIDE, QT_API_PYQT]
epatters Clean up in Qt API switcher.	r3306	else:
Chris Beaumont Refactor qt import logic. Fixes #2955	r9722	api_opts = [QT_API]

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