]c@sGdZddlZddlZddlmZddZdZdS(sio-related utilitiesiN(tPY3tstdoutcCse|dksttt|}trLy |j}WqRtk rH|SXn|}tjd|S(uGet a wrapper to write unicode to stdout/stderr as UTF-8. This ignores environment variables and default encodings, to reliably write unicode to stdout or stderr. :: unicode_std_stream().write(u'ł@e¶ŧ←') Rtstderrsutf-8(RR(tAssertionErrortgetattrtsysRtbuffertAttributeErrortcodecst getwriter(tstreamtstream_b((s1lib/python2.7/site-packages/nbconvert/utils/io.pytunicode_std_stream s   cCsMtj}tr4y |j}Wq:tk r0|SXn|}tjd|S(uGet a wrapper to read unicode from stdin as UTF-8. This ignores environment variables and default encodings, to reliably read unicode from stdin. :: totreat = unicode_stdin_stream().read() sutf-8(RtstdinRRRRt getreader(R R ((s1lib/python2.7/site-packages/nbconvert/utils/io.pytunicode_stdin_stream#s   (t__doc__RRtipython_genutils.py3compatRR R(((s1lib/python2.7/site-packages/nbconvert/utils/io.pyts