Python --如何在music21包中重命名Musescore路径？

Question

我试图安装Python包music21，但在Windows中运行它时遇到了问题。基本上，当我尝试运行这个简单的命令时，他们给出了一个示例

converter.parse("tinynotation: 3/4 c4 d8 f g16 a g f#").show()

我收到一个错误

SubConverterException: Cannot find a path to the 'mscore' file at C:\Program Files (x86)\MuseScore 2\MuseScore.exe -- download MuseScore

原因是Musescore.exe不再存储在文件夹"MuseScore 2“中，而是存储在名为"bin”的子文件夹中。因此，需要将路径设置为"C:\Program Files (x86)\MuseScore 2\bin\MuseScore.exe“才能访问Musescore。

我如何改变这一点？

完全错误

SubConverterException                     Traceback (most recent call last)
<ipython-input-8-46c66c71749d> in <module>()
----> 1 converter.parse("tinynotation: 3/4 c4 d8 f g16 a g f#").show()

C:\Users\MrNoName\Anaconda3\lib\site-packages\music21\stream\__init__.py in show(self, *args, **kwargs)
    255         if self.isSorted is False and self.autoSort:
    256             self.sort()
--> 257         return super(Stream, self).show(*args, **kwargs)
    258 
    259     #---------------------------------------------------------------------------

C:\Users\MrNoName\Anaconda3\lib\site-packages\music21\base.py in show(self, fmt, app, **keywords)
   2586                                  app=app,
   2587                                  subformats=subformats,
-> 2588                                  **keywords)
   2589 
   2590     #--------------------------------------------------------------------------

C:\Users\MrNoName\Anaconda3\lib\site-packages\music21\converter\subConverters.py in show(self, obj, fmt, app, subformats, **keywords)
    312 
    313             if 'Opus' not in obj.classes:
--> 314                 fp = helperSubConverter.write(obj, helperFormat, subformats=helperSubformats)
    315 
    316                 defaults.title = savedDefaultTitle

C:\Users\MrNoName\Anaconda3\lib\site-packages\music21\converter\subConverters.py in write(self, obj, fmt, fp, subformats, **keywords)
    808 
    809         if subformats is not None and 'png' in subformats:
--> 810             fp = self.runThroughMusescore(fp, **keywords)
    811         return fp
    812 

C:\Users\MrNoName\Anaconda3\lib\site-packages\music21\converter\subConverters.py in runThroughMusescore(self, fp, **keywords)
    756             raise SubConverterException(
    757                         "Cannot find a path to the 'mscore' file at " +
--> 758                         "%s -- download MuseScore" % musescorePath)
    759 
    760         fpOut = fp[0:len(fp) - 3]

SubConverterException: Cannot find a path to the 'mscore' file at C:\Program Files (x86)\MuseScore 2\MuseScore.exe -- download MuseScore

Answer 1

在导入music21后立即执行此操作：

environment.set('musescoreDirectPNGPath', 'C:\\Program Files (x86)\\MuseScore 2\\bin\\MuseScore.exe')

Answer 2

对于MuseScore 3

us = environment.UserSettings()
us['musicxmlPath'] = 'C:\\Program Files\\MuseScore 3\\bin\\MuseScore3.exe'
us['musescoreDirectPNGPath'] = 'C:\\Program Files\\MuseScore 3\\bin\\MuseScore3.exe'
us['musicxmlPath']

如果仍然不起作用，请尝试使用sublime或在C:\Users\YOU\AppData\Local\Programs\Python\Python39\Lib\site-packages\music21\environment.py中打开environment.py，然后将'%PROGRAMFILES%\MuseScore 3\MuseScore.exe'更改为'%PROGRAMFILES%\MuseScore 3\bin\MuseScore.exe'