Function _get_fontconfig_fonts

lib/matplotlib/font_manager.py:254–264

Cache and list the font paths known to ``fc-list``.

()

@cache
def _get_fontconfig_fonts():
    """Cache and list the font paths known to ``fc-list``."""
    try:
        if b'--format' not in subprocess.check_output(['fc-list', '--help']):
            _log.warning(  # fontconfig 2.7 implemented --format.
                'Matplotlib needs fontconfig>=2.7 to query system fonts.')
            return []
        out = subprocess.check_output(['fc-list', '--format=%{file}\\n'])
    except (OSError, subprocess.CalledProcessError):
        return []
    return [Path(os.fsdecode(fname)) for fname in out.split(b'\n')]


@cache