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Backport PR #12253 on branch v3.0.x (Handle utf-8 output by kpathsea on Windows.) #12302

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Backport PR #12253 on branch v3.0.x (Handle utf-8 output by kpathsea on Windows.) #12302

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17 changes: 12 additions & 5 deletions lib/matplotlib/dviread.py
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Original file line number Diff line number Diff line change
Expand Up @@ -992,6 +992,8 @@ def find_tex_file(filename, format=None):
kpathsea. It is also available as part of MikTeX, a popular
distribution on Windows.

*If the file is not found, an empty string is returned*.

Parameters
----------
filename : string or bytestring
Expand All @@ -1017,11 +1019,16 @@ def find_tex_file(filename, format=None):
if format is not None:
cmd += ['--format=' + format]
cmd += [filename]
_log.debug('find_tex_file(%s): %s', filename, cmd)
pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE)
result = pipe.communicate()[0].rstrip()
_log.debug('find_tex_file result: %s', result)
return result.decode('ascii')
try: # Below: strip final newline.
result = cbook._check_and_log_subprocess(cmd, _log)[:-1]
except RuntimeError:
return ''
if os.name == 'nt':
# On Windows only, kpathsea appears to use utf-8 output(?); see
# __win32_fputs in the kpathsea sources and mpl issue #11848.
return result.decode('utf-8')
else:
return os.fsdecode(result)


@lru_cache()
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