OSError: Unable to locate Ghostscript on paths

Question

使用 pip install pillow 安装了 PIL 后，在 python from PIL import Image 正常，运行如下代码异常，经过调试是在调用 save 方法是报错的:

from PIL import Image

img = Image.open(fileName+'.eps')
img.save(fileName+'.png')

有谁知道怎么办不？（sprio.py 是我自己的文件）

具体报错：

Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python36\lib\tkinter\__init__.py", line 1699, in __call__
    return self.func(*args)
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python36\lib\turtle.py", line 686, in eventfun
    fun()
  File "D:/python_workspace/MachineStudy/jike_project/ch02/spiro.py", line 183, in saveDrawing
    img.save('11.png')
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python36\lib\site-packages\PIL\Image.py", line 1897, in save
    self.load()
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python36\lib\site-packages\PIL\EpsImagePlugin.py", line 337, in load
    self.im = Ghostscript(self.tile, self.size, self.fp, scale)
  File "C:\Users\lenovo\AppData\Local\Programs\Python\Python36\lib\site-packages\PIL\EpsImagePlugin.py", line 137, in Ghostscript
    raise WindowsError('Unable to locate Ghostscript on paths')
OSError: Unable to locate Ghostscript on paths

Answer 1

你確認一下你的 ghost script 有在系統路徑中(PATH), 沒有的話去修改環境變量將之加入 PATH 中。

可以稍微參考一下這篇 的方法來修改 windows 的環境變量。

另外對於引發的 OSError，這裡有 source code 可以參考。

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我回答過的問題: Python-QA