解决pandas.read_csv()出现“OSError: Initializing from file failed”问题

在使用pandas.read_csv()读取txt文件时出现了如下异常:

H:\Anaconda\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, doublequote, delim_whitespace, low_memory, memory_map, float_precision)
    676                     skip_blank_lines=skip_blank_lines)
    677 
--> 678         return _read(filepath_or_buffer, kwds)
    679 
    680     parser_f.__name__ = name

H:\Anaconda\anaconda\lib\site-packages\pandas\io\parsers.py in _read(filepath_or_buffer, kwds)
    438 
    439     # Create the parser.
--> 440     parser = TextFileReader(filepath_or_buffer, **kwds)
    441 
    442     if chunksize or iterator:

H:\Anaconda\anaconda\lib\site-packages\pandas\io\parsers.py in __init__(self, f, engine, **kwds)
    785             self.options['has_index_names'] = kwds['has_index_names']
    786 
--> 787         self._make_engine(self.engine)
    788 
    789     def close(self):

H:\Anaconda\anaconda\lib\site-packages\pandas\io\parsers.py in _make_engine(self, engine)
   1012     def _make_engine(self, engine='c'):
   1013         if engine == 'c':
-> 1014             self._engine = CParserWrapper(self.f, **self.options)
   1015         else:
   1016             if engine == 'python':

H:\Anaconda\anaconda\lib\site-packages\pandas\io\parsers.py in __init__(self, src, **kwds)
   1706         kwds['usecols'] = self.usecols
   1707 
-> 1708         self._reader = parsers.TextReader(src, **kwds)
   1709 
   1710         passed_names = self.names is None

pandas\_libs\parsers.pyx in pandas._libs.parsers.TextReader.__cinit__()

pandas\_libs\parsers.pyx in pandas._libs.parsers.TextReader._setup_parser_source()

OSError: Initializing from file failed

百度了一下,有说因为pandas不支持读中文文件名的csv文件的,也有说是因为传入的参数是文件的路径而非文件名的,但是经过排查和试验,都没能解决这个问题。

看了一下错误原因和pandas的源码,发现调用pandas的read_csv()方法时,默认使用C engine作为parser engine,而当文件名中含有中文的时候,用C engine在部分情况下就会出错。

尝试了一下在调用read_csv()方法时指定engine为Python,问题解决。

即通过设关键字参数engine='python’就能解决。
例子:

pandas.read_csv(filename,engine=‘python’),python要加引号

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