On Sun, 12 May 2013 13:19:55 -0700, David Cortesi <davecort...@gmail.com> wrote: > For an app to be built with PyQt5/Qt5, I will have a > QPlainTextEdit in which the document may be quite > sizable, 500K characters or more. > > I will want at times to inspect the document character > by character, or possibly apply Python relib REs to it. > > I am somewhat at sea regarding the relationship between > a const QString such as returned by QPlainTextEdit.toPlainText() > and a Python3 unicode string, and -- just in general -- about > the best way to do intensive examination of big strings. > Is there a copy involved in, e.g. > > docstring = unicode( myEditor.toPlainText() )
In PyQt5 toPlainText() will return a str object for Python3 and a unicode object for Python2. > I note that the PyQt4 QString reference omits the > QString.begin() or .constBegin() etc methods that return an > "STL-style iterator" so that's out. Is there some internal magic > to integrate the QString type into Python's "for" mechanism > so that "for c in myEditor.toPlainText()" might be more > efficient than making a Python3 string and iterating on it? > > Also in regard to making intensive loops faster, > how well do PyQtx calls integrate with Cython or PyPy? > > Thanks for any insights, > > Dave Cortesi Phil _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
