我遇到了一个错误，超出了我的调试能力。Camelot 对 Ghostscript 的使用似乎找到了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，根据文档，它不能。
- 添加
/opt/homebrew/bin到/opt/homebrew/lib适当的路径（我认为？） - 根据 Camelot 的 GitHub 上错误 #282 的解决方法，我更改了
camelot/camelot/ext/ghostscript/_gsprint.py Line 256
libgs = ctypes.util.find_library("gs")
至
libgs = distutils.spawn.find_executable("gs")
- 使用新的（以上）代码再次检查依赖项。成功。
/opt/homebrew/bin/gs python3.9 -m pip install camelot-py- 尝试使用 Ghostscript 运行 Camelot。错误如下图。
我应该注意，gsin 位置/opt/homebrew/bin/gs似乎是一个别名，不确定这是否重要，但它有理由抛出异常。但是，接下来的两个“发现”在错误中传达，据我所知/opt/homebrew/bin/gs，它们都是正确的可执行文件。/opt/homebrew/Cellar/ghostscript/9.53.3_1/bin/gs
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
编辑——还应注意 Python 2.7 是 MacBook 附带的基本安装，它建议不要将其删除。which python或者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, flavor, suppress_stdout, layout_kwargs, **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, suppress_stdout, 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, name, mode, handle, use_errno, use_last_error, 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