In python programming (and many other languages) the "&" and "and" operators are not the same thing. So you can not just replace one with the other and expect the code to work. The "&" operator is a binary operator, while "and" is a logical operator.
See e.g. http://www.tutorialspoint.com/python/python_basic_operators.htm to understand the difference. Regards, Jaap On Sun, Jul 14, 2013 at 12:54 PM, <[email protected]> wrote: > Hello, > > I stumble upon wierd behaviour while I was editing somethig else the IDE > changed all ampersands (&) to 'and's > > and some things broke - not sure if all > > the one problem I noticed was in zim\gui\pageview.py > > in line 3428 in the 0.60 version from http://www.zim-wiki.org/** > downloads/zim-0.60.tar.gz<http://www.zim-wiki.org/downloads/zim-0.60.tar.gz> > > (the atachement is just copy of text to ensure correct transfer by e-mail) > t > > > elif (event.keyval in KEYVALS_LEFT_TAB > and not (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) > ) ----- > > elif (event.keyval in KEYVALS_LEFT_TAB > and not (event.state and KEYSTATES and ~gtk.gdk.SHIFT_MASK) > ) > > > the code handles the shift tab combo > > tab shifts content right > shift tab back but only in ampersand version > > > and all of them are always True > event.state > KEYSTATES > ~gtk.gdk.SHIFT_MASK > > > I don't see meaning of this part, can somebody explain why this is here > anyway? > event.state and KEYSTATES and ~gtk.gdk.SHIFT_MASK > > > ______________________________**______________________________** > ______________________________ > I am using "windows 8 64-bit", running from sources with python version > 2.7.3 > > > > INFO: This is zim 0.60 > DEBUG: Python version is sys.version_info(major=2, minor=7, micro=3, > releaselevel='final', serial=0) > DEBUG: Platform is nt > DEBUG: Zim revision is: > branch: pyzim-trunk > revision: 672 [email protected]**20130430172720-** > n6jaw95wiyevdqln > date: 2013-04-30 19:27:20 +0200 > > ______________________________**______________________________** > ______________________________ > debug info from modified function to print debug info > > recorded view is for tab, shift + tab (with cursor placed before text) > > > def do_key_press_event(self, event): > # This method defines extra key bindings. It also triggers > # end-of-word and end-of-line signals. > # > # Note that on maemo only TAB triggers this method, other keys > # avoid it somehow > # > # Calls in read-only mode or selection mode are dispatched to two > # methods below. > > handled = False > buffer = self.get_buffer() > print 'KEY %s (%i)' % (gtk.gdk.keyval_name(event.**keyval), > event.keyval) > print 'STATE %s' % event.state > > print "event.state", event.state > print "KEYSTATES", KEYSTATES > print "~gtk.gdk.SHIFT_MASK", ~gtk.gdk.SHIFT_MASK > #print "(event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK)", > (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) > print "(event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK)", > (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) > print "NOT event.state", not event.state > print "NOT KEYSTATES", not KEYSTATES > print "NOT ~gtk.gdk.SHIFT_MASK", not ~gtk.gdk.SHIFT_MASK > print "NOT (event.state & KEYSTATES & > ~gtk.gdk.SHIFT_MASK)",not (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) > print "NOT with ANDs... KEYSTATES and > ~gtk.gdk.SHIFT_MASK)",not (event.state and KEYSTATES and > ~gtk.gdk.SHIFT_MASK) > print'\n\n' > if not self.get_editable(): > > > KEY Tab (65289) > STATE <flags 0 of type GdkModifierType> > event.state <flags 0 of type GdkModifierType> > KEYSTATES <flags GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK of type > GdkModifierType> > ~gtk.gdk.SHIFT_MASK -2 > (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) 0 > NOT event.state True > NOT KEYSTATES False > NOT ~gtk.gdk.SHIFT_MASK False > NOT (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) True > NOT with ANDs... KEYSTATES and ~gtk.gdk.SHIFT_MASK) True > > > > KEY Shift_L (65505) > STATE <flags GDK_SHIFT_MASK of type GdkModifierType> > event.state <flags GDK_SHIFT_MASK of type GdkModifierType> > KEYSTATES <flags GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK of type > GdkModifierType> > ~gtk.gdk.SHIFT_MASK -2 > (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) 0 > NOT event.state False > NOT KEYSTATES False > NOT ~gtk.gdk.SHIFT_MASK False > NOT (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) True > NOT with ANDs... KEYSTATES and ~gtk.gdk.SHIFT_MASK) False > > > > KEY ISO_Left_Tab (65056) > STATE <flags GDK_SHIFT_MASK of type GdkModifierType> > event.state <flags GDK_SHIFT_MASK of type GdkModifierType> > KEYSTATES <flags GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK of type > GdkModifierType> > ~gtk.gdk.SHIFT_MASK -2 > (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) 0 > NOT event.state False > NOT KEYSTATES False > NOT ~gtk.gdk.SHIFT_MASK False > NOT (event.state & KEYSTATES & ~gtk.gdk.SHIFT_MASK) True > NOT with ANDs... KEYSTATES and ~gtk.gdk.SHIFT_MASK) False > > > > _______________________________________________ > Mailing list: https://launchpad.net/~zim-wiki > Post to : [email protected] > Unsubscribe : https://launchpad.net/~zim-wiki > More help : https://help.launchpad.net/ListHelp > >
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