PYQT International Multi-lingual support

Internationalization refers to the design of the code to be easily ported to other countries and regions of the features, to add internationalization support for PYQT five steps

I. Preparation of gui.py

In the text to be translated, the TR method is used to enclose it.

#-*-coding:utf-8-*- fromPyQt4ImportQtcore, QtguiclassMwindow (qtgui.qdialog):def __init__(self): Super (Mwindow, self).__init__() self.resize (100, 60) Self.down1= Qtgui.qpushbutton (self.tr (U'Download'), self) self.down1.setGeometry (Qtcore.qrect (10, 5, 90, 23)) Self.down2= Qtgui.qpushbutton (self.tr (U'Upload'), self) self.down2.setGeometry (Qtcore.qrect (10, 30, 90, 23))if __name__=='__main__':    Importsys app=qtgui.qapplication (SYS.ARGV) Mainwin=Mwindow () mainwin.show () Sys.exit (App.exec_ ())

Effect:

Two. Create a language file

CMD use command:

Pylupdate4 Ui_main.py-ts Zh_cn.ts

A zh_cn.ts language file is generated

In fact, the. ts file is an XML file, you can also open XML directly to repair

Three. Translating language files

Open zh_cn.ts with Qt's language home

QT Language Home Linguist.exe directory: python/lib/site-packages/pyqt4/

Four. Convert to QM File

Conversion command:

Lrelease  Zh_cn.ts

QT Lrelease.exe Directory: python/lib/site-packages/pyqt4/

You can also use the QT Language Home menu--post

Five. Introducing QM files into the code

Reference:

 from Import Qtranslator

    trans = Qtranslator ()    trans.load ("zh_cn")  #  No suffix. QM    app.installtranslator (trans)

Full code:

1 #-*-coding:utf-8-*-2  fromPyQt4ImportQtcore, Qtgui3  fromPyqt4.qtcoreImportQtranslator4 classMwindow (qtgui.qdialog):5     def __init__(self):6Super (Mwindow, self).__init__()7Self.resize (100, 60)8Self.down1 = Qtgui.qpushbutton (self.tr (U'Download'), self)9Self.down1.setGeometry (Qtcore.qrect (10, 5, 90, 23))Ten  OneSELF.DOWN2 = Qtgui.qpushbutton (self.tr (U'Upload'), self) ASelf.down2.setGeometry (Qtcore.qrect (10, 30, 90, 23)) -  -  the if __name__=='__main__': -     ImportSYS -App =qtgui.qapplication (SYS.ARGV) -trans =Qtranslator () +Trans.load ("ZH_CN")#no suffix. QM - App.installtranslator (trans) +Mainwin =Mwindow () A mainwin.show () atSys.exit (App.exec_ ())

Effect:

PYQT International Multi-lingual support