子转换文件IO异常-音乐21展示()

Question

我刚刚安装了music21，想要开始使用它。我已经安装了Musescore3，但是我无法让show()函数正常工作。

我尝试更改路径，按照我在网上找到的一些说明进行操作，但是没有成功。

from music21 import *

us = environment.UserSettings()
us['musicxmlPath'] = 'D:\\Program Files\\MuseScore 3\\bin\\Musescore3.exe'
us['musicxmlPath'] = 'D:\\Program Files\\MuseScore 3\\bin\\Musescore3.exe'

我试图做一个简单的show()

from music21 import *

f = note.Note('F5')
f.show()

以下是我遇到的错误：

Python 3.7.3 (default, Mar 27 2019, 17:13:21) [MSC v.1915 64 bit (AMD64)]
Type "copyright", "credits" or "license" for more information.

IPython 7.4.0 -- An enhanced Interactive Python.

runfile('D:/Users/Pedro/Pedro/Projeto Python-Música/music21test.py', wdir='D:/Users/Pedro/Pedro/Projeto Python-Música')
D:\Program Files\MuseScore 3\bin\Musescore3.exe
Traceback (most recent call last):

  File "<ipython-input-1-19e1672511d4>", line 1, in <module>
    runfile('D:/Users/Pedro/Pedro/Projeto Python-Música/music21test.py', wdir='D:/Users/Pedro/Pedro/Projeto Python-Música')

  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 786, in runfile
    execfile(filename, namespace)

  File "C:\ProgramData\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 110, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "D:/Users/Pedro/Pedro/Projeto Python-Música/music21test.py", line 14, in <module>
    f.show()

  File "C:\ProgramData\Anaconda3\lib\site-packages\music21\base.py", line 2580, in show
    **keywords)

  File "C:\ProgramData\Anaconda3\lib\site-packages\music21\converter\subConverters.py", line 360, in show
    subformats=helperSubformats, **keywords)

  File "C:\ProgramData\Anaconda3\lib\site-packages\music21\converter\subConverters.py", line 938, in write
    fp = self.runThroughMusescore(fp, subformats, **keywords)

  File "C:\ProgramData\Anaconda3\lib\site-packages\music21\converter\subConverters.py", line 895, in runThroughMusescore
    return self.findPNGfpFromXMLfp(fpOut)

  File "C:\ProgramData\Anaconda3\lib\site-packages\music21\converter\subConverters.py", line 807, in findPNGfpFromXMLfp
    "png file of xml not found. Or file >999 pages?")

SubConverterFileIOException: png file of xml not found. Or file >999 pages?

- Pedro Proença

Answer 1

我遇到了这种情况，因为在jupyter上运行时无法使用Musscore3。尝试在终端中运行可以解决问题。

- Laugh

Answer 2

有时候路径中有空格会导致错误 -- 试着将你的文件夹 "Projeto Python-Música" 重命名为 "Python-Musica"（同时去掉重音符号以确保 Unicode 不是问题），看看是否能解决问题。

- Michael Scott Asato Cuthbert