Skip to main content
Help us improve Python packaging – donate today!

Twisted Qt Integration

Project Description

Qt4Reactor

Using the QtReactor
-------------------

Before running / importing any other Twisted code, invoke:

::

app = QApplication(sys.argv) # your code to init QtCore
from twisted.application import reactors
reactors.installReactor('pyqt4')

or

::

app = QApplication(sys.argv) # your code to init QtCore
from twisted.application import reactors
reactors.installReactor('pyside4')

alternatively (gui example):

::

app = PyQt4.QtGui(sys.argv) # your code to init QtGui
from qtreactor import pyqt4reactor
pyqt4reactor.install()

Testing
~~~~~~~

::

trial --reactor=pyqt4 [twisted] [twisted.test] [twisted.test.test_internet]

Testing with a Gui
~~~~~~~~~~~~~~~~~~

Twisted trial can be run for a Gui test using gtrial. Run Trial in the
same directory as bin/gtrial and it pops up a trivial gui... hit the
buton and it all runs the same... don't use the --reactor option when
calling gtrial... but all the other options appear to work.

::

cp gtrial <test-directory>

cd <test-directory> && trial

If you're writing a conventional Qt application and just want twisted as
an addon, you can get that by calling reactor.runReturn() instead of
run(). This call needs to occur after your installation of of the
reactor and after QApplication.exec\_() (or QCoreApplication.exec\_()
whichever you are using.

reactor.run() will also work as expected in a typical twisted
application

Note that if a QApplication or QCoreApplication instance isn't
constructed prior to calling reactor run, an internally owned
QCoreApplication is created and destroyed. This won't work if you call
runReturn instead of run unless you take responsibility for destroying
QCoreApplication yourself...

However, most users want this reactor to do gui stuff so this shouldn't
be an issue.

Performance impact of Qt has been reduced by minimizing use of signaling
which is expensive.

Examples / tests in ghtTests

Release history Release notifications

This version
History Node

1.6

History Node

1.5

History Node

1.0

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Filename, size & hash SHA256 hash help File type Python version Upload date
qt4reactor-1.6.tar.gz (15.6 kB) Copy SHA256 hash SHA256 Source None Sep 24, 2014

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging CloudAMQP CloudAMQP RabbitMQ AWS AWS Cloud computing Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page