python - 读取 CSV 文件时出现 UnicodeDecodeError

Question

我使用以下代码读取 CSV 文件:

address=r'C:\Users\ssadangi\Desktop\Lynda Python data analytics\Ch02\02_05\Superstore-Sales.csv'
df=pd.read_csv(address,index_col='Order Date',parse_dates=True)

代码给我这个错误:

UnicodeDecodeError                        Traceback (most recent call last)
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._convert_tokens()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._convert_with_dtype()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._string_convert()
pandas/_libs/parsers.pyx in pandas._libs.parsers._string_box_utf8()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xae in position 16: invalid start byte

在处理上述异常的过程中，又发生了一个异常:

UnicodeDecodeError                        Traceback (most recent call last)
<ipython-input-28-3fa20db347ab> in <module>()
----> 1 df=pd.read_csv('Superstore-Sales.csv',index_col='Order Date',parse_dates=True)
~\Documents\Softwares\Anaconda\lib\site-packages\pandas\io\parsers.py in parser_f(filepath_or_buffer, sep, delimiter, header, names, index_col, usecols, squeeze, prefix, mangle_dupe_cols, dtype, engine, converters, true_values, false_values, skipinitialspace, skiprows, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, dayfirst, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, escapechar, comment, encoding, dialect, tupleize_cols, error_bad_lines, warn_bad_lines, skipfooter, skip_footer, doublequote, delim_whitespace, as_recarray, compact_ints, use_unsigned, low_memory, buffer_lines, memory_map, float_precision)
    707                     skip_blank_lines=skip_blank_lines)
    708 
--> 709         return _read(filepath_or_buffer, kwds)
    710 
    711     parser_f.__name__ = name
~\Documents\Softwares\Anaconda\lib\site-packages\pandas\io\parsers.py in _read(filepath_or_buffer, kwds)
    453 
    454     try:
--> 455         data = parser.read(nrows)
    456     finally:
    457         parser.close()
~\Documents\Softwares\Anaconda\lib\site-packages\pandas\io\parsers.py in read(self, nrows)
   1067                 raise ValueError('skipfooter not supported for iteration')
   1068 
-> 1069         ret = self._engine.read(nrows)
   1070 
   1071         if self.options.get('as_recarray'):
~\Documents\Softwares\Anaconda\lib\site-packages\pandas\io\parsers.py in read(self, nrows)
   1837     def read(self, nrows=None):
   1838         try:
-> 1839             data = self._reader.read(nrows)
   1840         except StopIteration:
   1841             if self._first_chunk:
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader.read()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._read_low_memory()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._read_rows()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._convert_column_data()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._convert_tokens()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._convert_with_dtype()
pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._string_convert()
pandas/_libs/parsers.pyx in pandas._libs.parsers._string_box_utf8()
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xae in position 16: invalid start byte

Answer 1

当您使用 pd.read_csv() 函数时，这是编码错误，您还必须定义编码

address=r'C:\Users\ssadangi\Desktop\Lynda Python data analytics\Ch02\02_05\Superstore-Sales.csv'
df=pd.read_csv(address,index_col='Order Date',parse_dates=True,encoding='latin1') #here i am using encoding attribute