PyYAML 5.3 not compatible with Jython #369
Description
PyYAML 5.2 still worked but 5.3 crashes at import. Tested with Jython 2.7.0 and 2.7.2b2 and this is the result:
$ jython -c "import yaml"
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/home/peke/Prog/jython2.7.0/Lib/site-packages/yaml/__init__.py", line 8, in <module>
from loader import *
File "/home/peke/Prog/jython2.7.0/Lib/site-packages/yaml/loader.py", line 4, in <module>
from reader import *
UnicodeDecodeError: 'unicodeescape' codec can't decode bytes in position 49-55: illegal Unicode character
This seems to be caused by PR #351. Apparently the root cause is that Jython doesn't support lone surrogates at all. According to https://bugs.jython.org/issue2048 that is by design.