安装ImageMagick

一.使用场景

此处问题为我使用MoviePy模块给视频添加文字水印的时候遇到的报错，

安装imageio和MoviePy以及requests模块，就已经可以使用MoviePy很多功能了，但是某些函数，还需要用到这个叫ImageMagick的软件。如果你不安装它会提示这样的错误：

Traceback (most recent call last):
  File "F:\Tool\PythonVE\Movie\lib\site-packages\moviepy\video\VideoClip.py", line 1156, in __init__
    subprocess_call(cmd, verbose=False)
  File "F:\Tool\PythonVE\Movie\lib\site-packages\moviepy\tools.py", line 42, in subprocess_call
    proc = sp.Popen(cmd, **popen_params)
  File "f:\tool\python36\Lib\subprocess.py", line 709, in __init__
    restore_signals, start_new_session)
  File "f:\tool\python36\Lib\subprocess.py", line 997, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] 系统找不到指定的文件。

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "F:/A/MoviePy/Cut.py", line 14, in <module>
    txt_clip = TextClip("字幕", fontsize=70, color='white')
  File "F:\Tool\PythonVE\Movie\lib\site-packages\moviepy\video\VideoClip.py", line 1165, in __init__
    raise IOError(error)
OSError: MoviePy Error: creation of None failed because of the following error:

[WinError 2] 系统找不到指定的文件。

.This error can be due to the fact that ImageMagick is not installed on your computer, or (for Windows users) that you didn't specify the path to the ImageMagick binary in file conf.py, or that the path you specified is incorrect

重点在最后一句：

.This error can be due to the fact that ImageMagick is not installed on your computer, 

or (for Windows users) that you didn't specify the path to the ImageMagick binary in file conf.py, or that the path you specified is incorrect