[meld/meld-3-14] meldapp: Monkey-patch optparse's gettext alias for ugettext compat

[Kai Willadsen <kaiw src gnome org>]

commit 00ee7c465e353ca4a2a6e0b2f7b7e83aeceac4ba
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sun Aug 23 09:51:15 2015 +1000

    meldapp: Monkey-patch optparse's gettext alias for ugettext compat
    
    Meld uses and assumes ugettext for our translations, and this doesn't
    interact well with optparse's use of gettext, when it tries to mash
    together its bytestring translations with our unicode translations.
    
    While this is an ugly hack, the only other simple option is not using
    optparse, which is a longer-term goal but much too invasive for a
    quick fix.

 meld/meldapp.py |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/meld/meldapp.py b/meld/meldapp.py
index 153783a..8fd11c9 100644
--- a/meld/meldapp.py
+++ b/meld/meldapp.py
@@ -34,6 +34,12 @@ from meld.conf import _
 
 log = logging.getLogger(__name__)
 
+# Monkeypatching optparse like this is obviously awful, but this is to
+# handle Unicode translated strings within optparse itself that will
+# otherwise crash badly. This just makes optparse use our ugettext
+# import of _, rather than the non-unicode gettext.
+optparse._ = _
+
 
 class MeldApp(Gtk.Application):