moviepy执行TextClip.search方法时报错TypeError: a bytes-like object is required, not str

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执行TextClip.search方法时，报错：

>>> from  moviepy.editor import *
>>> TextClip.search('red','color')
Traceback (most recent call last):
  File "", line 1, in <module>
    TextClip.search('red','color')
  File "C:\Program Files\Python37\lib\site-packages\moviepy\video\VideoClip.py", line 1197, in search
    return [name for name in names_list if string in name.lower()]
  File "C:\Program Files\Python37\lib\site-packages\moviepy\video\VideoClip.py", line 1197, in <listcomp>
    return [name for name in names_list if string in name.lower()]
TypeError: a bytes-like object is required, not 'str'
>>> 

这是因为‘color’参数对应取值为bytes类型导致，将其改为：TextClip.search(b'red','color')即可正确执行。

更多TextClip的介绍请参考《moviepy音视频剪辑：视频基类VideoClip子类DataVideoClip、UpdatedVideoClip、ImageClip、ColorClip、TextClip类详解》。

更多moviepy的介绍请参考《PyQt+moviepy音视频剪辑实战文章目录》或《专栏：使用PyQt开发图形界面Python应用》。

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