Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/twisted/internet/gtk3reactor.py

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+# Copyright (c) Twisted Matrix Laboratories.
+# See LICENSE for details.
+
+"""
+This module provides support for Twisted to interact with the gtk3 mainloop
+via Gobject introspection. This is like gi, but slightly slower and requires a
+working $DISPLAY.
+
+In order to use this support, simply do the following::
+
+    from twisted.internet import gtk3reactor
+    gtk3reactor.install()
+
+If you wish to use a GApplication, register it with the reactor::
+
+    from twisted.internet import reactor
+    reactor.registerGApplication(app)
+
+Then use twisted.internet APIs as usual.
+"""
+
+from __future__ import division, absolute_import
+
+import os
+
+from twisted.internet import gireactor
+from twisted.python import runtime
+
+# Newer versions of gtk3/pygoject raise a RuntimeError, or just break in a
+# confusing manner, if the program is not running under X11.  We therefore try
+# to fail in a more reasonable manner, and check for $DISPLAY as a reasonable
+# approximation of availability of X11. This is somewhat over-aggressive,
+# since some older versions of gtk3/pygobject do work with missing $DISPLAY,
+# but it's too hard to figure out which, so we always require it.
+if (runtime.platform.getType() == 'posix' and
+    not runtime.platform.isMacOSX() and not os.environ.get("DISPLAY")):
+    raise ImportError(
+        "Gtk3 requires X11, and no DISPLAY environment variable is set")
+
+
+class Gtk3Reactor(gireactor.GIReactor):
+    """
+    A reactor using the gtk3+ event loop.
+    """
+
+    def __init__(self):
+        """
+        Override init to set the C{useGtk} flag.
+        """
+        gireactor.GIReactor.__init__(self, useGtk=True)
+
+
+
+class PortableGtk3Reactor(gireactor.PortableGIReactor):
+    """
+    Portable GTK+ 3.x reactor.
+    """
+    def __init__(self):
+        """
+        Override init to set the C{useGtk} flag.
+        """
+        gireactor.PortableGIReactor.__init__(self, useGtk=True)
+
+
+
+def install():
+    """
+    Configure the Twisted mainloop to be run inside the gtk3+ mainloop.
+    """
+    if runtime.platform.getType() == 'posix':
+        reactor = Gtk3Reactor()
+    else:
+        reactor = PortableGtk3Reactor()
+
+    from twisted.internet.main import installReactor
+    installReactor(reactor)
+    return reactor
+
+
+__all__ = ['install']