python之Unicode解码错误: 'charmap' codec can't decode byte 0x8d in position 386: character maps to undefined>

我正在尝试使用 slate 库读取 pdf 文件，但它抛出了这个错误:

import slate 
 
pdf = 'tabla9.pdf' 
 
with open(pdf,encoding="utf-8") as f: 
 
doc = slate.PDF(f) 
 
for page in doc[:2]: 
   print(page) 

完整错误:

File "C:\Users\user\libro5.py", line 7, in <module> 
doc = slate.PDF(f) 
File "C:\Python3\lib\slate\classes.py", line 52, in __init__ 
self.parser = PDFParser(file) 
File "C:\Python3\lib\site-packages\pdfminer\pdfparser.py", line 646, in  
__init__ 
PSStackParser.__init__(self, fp) 
File "C:\Python3\lib\site-packages\pdfminer\psparser.py", line 189, in  
__init__ 
PSBaseParser.__init__(self, fp) 
File "C:\Python3\lib\site-packages\pdfminer\psparser.py", line 134, in  
__init__ 
data = fp.read() 
File "C:\Python3\lib\codecs.py", line 322, in decode 
(result, consumed) = self._buffer_decode(data, self.errors, final) 
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe2 in position 10:  
invalid continuation byte 

classes.py，第 52 行:

class PDF(list): 
    def __init__(self, file, password='', just_text=1, check_extractable=True, char_margin=1.0, line_margin=0.1, word_margin=0.1): 
        self.parser = PDFParser(file) 

pdfparser.py，第 646 行:

def __init__(self, fp): 
        PSStackParser.__init__(self, fp) 

psparser.py，第 189 行:

class PSStackParser(PSBaseParser): 
 
    def __init__(self, fp): 
        PSBaseParser.__init__(self, fp) 

psparser.py，第 134 行:

class PSBaseParser: 
 
    """Most basic PostScript parser that performs only tokenization. 
    """ 
    def __init__(self, fp): 
        data = fp.read() 

文件“C:\Python3\lib\codecs.py”，第 322 行，在解码中 (结果，消费)= self._buffer_decode(数据，self.errors，最终) UnicodeDecodeError:“utf-8”编解码器无法解码位置 10 中的字节 0xe2:无效的连续字节:

def decode(self, input, final=False): 
    # decode input (taking the buffer into account) 
    data = self.buffer + input 
    (result, consumed) = self._buffer_decode(data, self.errors, final) 

我在 Windows 10 上使用 Python 3.7。

请您参考如下方法:

PDF 文件是二进制文件，不适合以带有编码的文本模式打开它。

尝试:

with open(pdf, "rb") as f: