Is there a consensus to not allow arbitrary unicode in command line output?
It seems like it might be useful, but apparently its technically not
supported. Is this a bug or a feature?
For the record, if your _repr_() method returns actual unicode then the
following happens:
---------------------------------------------------------------------------
UnicodeEncodeError Traceback (most recent call last)
/home/vbraun/opt/sage-4.7.rc2/devel/sage-main/<ipython console> in
<module>()
/home/vbraun/Sage/sage/local/lib/python2.6/site-packages/IPython/Prompts.pyc
in __call__(self, arg)
549
550 # and now call a possibly user-defined print mechanism
--> 551 manipulated_val = self.display(arg)
552
553 # user display hooks can change the variable to be
stored in
/home/vbraun/Sage/sage/local/lib/python2.6/site-packages/IPython/Prompts.pyc
in _display(self, arg)
575 return IPython.generics.result_display(arg)
576 except TryNext:
--> 577 return self.shell.hooks.result_display(arg)
578
579 # Assign the default display method:
/home/vbraun/Sage/sage/local/lib/python2.6/site-packages/IPython/hooks.pyc
in __call__(self, *args, **kw)
139 #print "prio",prio,"cmd",cmd #dbg
140 try:
--> 141 ret = cmd(*args, **kw)
142 return ret
143 except ipapi.TryNext, exc:
/home/vbraun/Sage/sage/local/lib/python2.6/site-packages/sage/misc/displayhook.pyc
in result_display(ip_self, obj)
148 # IPython's default result_display() uses the
IPython.genutils.Term.cout stream.
149 # See also local/lib/python2.6/site-packages/IPython/hooks.py.
--> 150 print_obj(IPython.genutils.Term.cout, obj)
151
152 def displayhook(obj):
/home/vbraun/Sage/sage/local/lib/python2.6/site-packages/sage/misc/displayhook.pyc
in print_obj(out_stream, obj)
140 if _check_tall_list_and_print(out_stream, obj):
141 return
--> 142 print >>out_stream, `obj`
143
144 def result_display(ip_self, obj):
UnicodeEncodeError: 'ascii' codec can't encode character u'\u2283' in
position 5: ordinal not in range(128)
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