moviepy音视频剪辑：TextClip.list(font)和search搜索字体报错UnicodeDecodeError：utf-8 codec cannott decode byte 问题

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在moviepy2.0.0.Dev版本中，执行如下语句：

from  moviepy.editor import *
TextClip.search('gb', 'font')

报错：

Traceback (most recent call last):
File "F:/study/python/project/moviepyTest/moviepyTest.py", line 45, in
TextClip.search('gb', 'font')
File "C:\Program Files\Python37\lib\site-packages\moviepy\video\VideoClip.py", line 1307, in search
names_list = TextClip.list(arg)
File "C:\Program Files\Python37\lib\site-packages\moviepy\video\VideoClip.py", line 1283, in list
result = process.communicate()[0]
File "C:\Program Files\Python37\lib\subprocess.py", line 926, in communicate
stdout = self.stdout.read()
File "C:\Program Files\Python37\lib\codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb7 in position 66845: invalid start byte

这是中文解码的支持问题，解决办法将list方法的解码部分的’UTF-8’换成’ASN’或’CP936都可以，修改后的代码如下：

    def list(arg):
        """Returns a list of all valid entries for the ``font`` or ``color`` argument of
        ``TextClip``"""

        popen_params = {"stdout": sp.PIPE, "stderr": sp.DEVNULL, "stdin": sp.DEVNULL}

        if os.name == "nt":
            popen_params["creationflags"] = 0x08000000

        process = sp.Popen(
            [IMAGEMAGICK_BINARY, "-list", arg], encoding='cp936', **popen_params
        )
        result = process.communicate()[0]
        lines = result.splitlines()

        if arg == "font":
            # Slice removes first 8 characters: "  Font: "
            return [l[8:] for l in lines if l.startswith("  Font:")]
        elif arg == "color":
            # Each line is of the format "aqua  srgb(0,255,255)  SVG" so split on space and take
            # the first item to get the color name.
            # The first 5 lines are header information, not colors, so ignore
            return [l.split(" ")[0] for l in lines[5:]]
        else:
            raise Exception("Moviepy Error: Argument must equal 'font' or 'color'")

更多moviepy的介绍请参考《PyQt+moviepy音视频剪辑实战文章目录》或《moviepy音视频开发专栏》。

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