问题描述
我遇到了一个错误，超出了我的调试能力。 Camelot 对 Ghostscript 的使用似乎发现了一个错误架构的可执行文件。
采取的步骤：
brew install Ghostscript- 检查是否可以找到 Ghostscript 的可执行文件，as per the docs，它找不到。
- 将
/opt/homebrew/bin和/opt/homebrew/lib添加到适当的路径（我认为？） - 根据 Camelot GitHub 上错误 #282 的解决方案，我更改了
camelot/camelot/ext/ghostscript/_gsprint.py Line 256
libgs = ctypes.util.find_library("gs")
到
libgs = distutils.spawn.find_executable("gs")
- 再次检查依赖项，使用新的（以上）代码。成功。
/opt/homebrew/bin/gs python3.9 -m pip install camelot-py- 尝试使用 Ghostscript 运行 Camelot。错误如下所示。
我应该注意，位置 gs 中的 /opt/homebrew/bin/gs 似乎是一个别名，不确定这是否重要，但它会抛出异常是有道理的。但是，错误中传达的接下来的两个“发现”，/opt/homebrew/bin/gs 和 /opt/homebrew/Cellar/ghostscript/9.53.3_1/bin/gs 都是正确的可执行文件，据我所知。
常识告诉我，如果我使用的是 Windows，我会遇到 64 位与 32 位的问题……但我使用的是我不熟悉的 MacOS。
MacOS -- Apple Silicon M1 -- Python 3.9 -- brew 安装 Ghostscript -- pip 安装 camelot-py -- 通过 Jupiter notebook 尝试
edit -- 还应该注意 Python 2.7 是 MacBook 附带的基本安装，它建议不要删除它。 which python 或 python -- version 返回 2.7 版本，而不是我运行的 3.9 版本。
---------------------------------------------------------------------------
OSError Traceback (most recent call last)
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/camelot/ext/ghostscript/_gsprint.py in <module>
259 try:
--> 260 libgs = cdll.LoadLibrary("libgs.so")
261 except OSError:
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/ctypes/__init__.py in LoadLibrary(self,name)
451 def LoadLibrary(self,name):
--> 452 return self._dlltype(name)
453
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/ctypes/__init__.py in __init__(self,name,mode,handle,use_errno,use_last_error,winmode)
373 if handle is None:
--> 374 self._handle = _dlopen(self._name,mode)
375 else:
OSError: dlopen(libgs.so,6): image not found
During handling of the above exception,another exception occurred:
OSError Traceback (most recent call last)
<ipython-input-4-3a80516ee21f> in <module>
1 file = r"/Users/joe_kiefner/Documents/Projects/Migration Station/Data_Lake/Arkansas/AR_12_10_2020.pdf"
2
----> 3 tables = camelot.read_pdf(file,flavor = 'lattice',pages='5')
4
5 t_df = tables[0].df
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/camelot/io.py in read_pdf(filepath,pages,password,flavor,suppress_stdout,layout_kwargs,**kwargs)
111 p = PDFHandler(filepath,pages=pages,password=password)
112 kwargs = remove_extra(kwargs,flavor=flavor)
--> 113 tables = p.parse(
114 flavor=flavor,115 suppress_stdout=suppress_stdout,/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/camelot/handlers.py in parse(self,**kwargs)
169 parser = Lattice(**kwargs) if flavor == "lattice" else Stream(**kwargs)
170 for p in pages:
--> 171 t = parser.extract_tables(
172 p,suppress_stdout=suppress_stdout,layout_kwargs=layout_kwargs
173 )
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/camelot/parsers/lattice.py in extract_tables(self,filename,layout_kwargs)
400 return []
401
--> 402 self._generate_image()
403 self._generate_table_bBox()
404
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/camelot/parsers/lattice.py in _generate_image(self)
209
210 def _generate_image(self):
--> 211 from ..ext.ghostscript import Ghostscript
212
213 self.imagename = "".join([self.rootname,".png"])
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/camelot/ext/ghostscript/__init__.py in <module>
22 #
23
---> 24 from . import _gsprint as gs
25
26
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/camelot/ext/ghostscript/_gsprint.py in <module>
274 if not libgs:
275 raise RuntimeError("Please make sure that Ghostscript is installed")
--> 276 libgs = cdll.LoadLibrary(libgs)
277
278 del __win32_finddll
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/ctypes/__init__.py in LoadLibrary(self,name)
450
451 def LoadLibrary(self,name):
--> 452 return self._dlltype(name)
453
454 __class_getitem__ = classmethod(_types.GenericAlias)
/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/ctypes/__init__.py in __init__(self,winmode)
372
373 if handle is None:
--> 374 self._handle = _dlopen(self._name,mode)
375 else:
376 self._handle = handle
OSError: dlopen(/opt/homebrew/bin/gs,6): no suitable image found. Did find:
/opt/homebrew/bin/gs: mach-o,but wrong architecture
/opt/homebrew/Cellar/ghostscript/9.53.3_1/bin/gs: mach-o,but wrong architecture
解决方法
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