[issue22742] IDLE shows traceback when printing non-BMP character
Martin Panter
report at bugs.python.org
Wed Apr 24 20:55:41 EDT 2019
Martin Panter <vadmium+py at gmail.com> added the comment:
I haven’t looked at the code, but I suspect Idle implements a custom “sys.displayhook”:
>>> help(sys.displayhook)
Help on function displayhook in module idlelib.rpc:
displayhook(value)
Override standard display hook to use non-locale encoding
>>> sys.displayhook('\N{ROCKET}')
'\U0001f680'
>>> sys.__displayhook__('\N{ROCKET}')
Traceback (most recent call last):
File "<pyshell#20>", line 1, in <module>
sys.__displayhook__('\N{ROCKET}')
File "/usr/lib/python3.5/idlelib/PyShell.py", line 1344, in write
return self.shell.write(s, self.tags)
UnicodeEncodeError: 'UCS-2' codec can't encode characters in position 1-1: Non-BMP character not supported in Tk
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nosy: +martin.panter
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