Question

我必须阅读名称中恰好带有句点的文件列表：

['0001.HK.csv',
 '0002.HK.csv',
 '0003.HK.csv',
 '0004.HK.csv',
 '0005.HK.csv',
 '0006.HK.csv',...]

当我尝试使用熊猫读取文件时，出现错误消息：

df = pd.read_csv('001.HK.csv', index_col = 0)


---------------------------------------------------------------------------
FileNotFoundError                         Traceback (most recent call last)
<ipython-input-232-a710be5c9b60> in <module>
----> 1 df = pd.read_csv('001.HK.csv', index_col = 0)

~\Anaconda3\envs\tf2\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, skipfooter, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, dayfirst, cache_dates, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, doublequote, escapechar, comment, encoding, dialect, error_bad_lines, warn_bad_lines, delim_whitespace, low_memory, memory_map, float_precision)
    674         )
    675 
--> 676         return _read(filepath_or_buffer, kwds)
    677 
    678     parser_f.__name__ = name

~\Anaconda3\envs\tf2\lib\site-packages\pandas\io\parsers.py in _read(filepath_or_buffer, kwds)
    446 
    447     # Create the parser.
--> 448     parser = TextFileReader(fp_or_buf, **kwds)
    449 
    450     if chunksize or iterator:

~\Anaconda3\envs\tf2\lib\site-packages\pandas\io\parsers.py in __init__(self, f, engine, **kwds)
    878             self.options["has_index_names"] = kwds["has_index_names"]
    879 
--> 880         self._make_engine(self.engine)
    881 
    882     def close(self):

~\Anaconda3\envs\tf2\lib\site-packages\pandas\io\parsers.py in _make_engine(self, engine)
   1112     def _make_engine(self, engine="c"):
   1113         if engine == "c":
-> 1114             self._engine = CParserWrapper(self.f, **self.options)
   1115         else:
   1116             if engine == "python":

~\Anaconda3\envs\tf2\lib\site-packages\pandas\io\parsers.py in __init__(self, src, **kwds)
   1889         kwds["usecols"] = self.usecols
   1890 
-> 1891         self._reader = parsers.TextReader(src, **kwds)
   1892         self.unnamed_cols = self._reader.unnamed_cols
   1893 

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

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

FileNotFoundError: [Errno 2] File 001.HK.csv does not exist: '001.HK.csv'

在熊猫中读取这些文件的最有效方法是什么？

Answer 1

在列表中，文件具有4位数字，但是您尝试打开的文件只有3位数字。检查文件名是否包含3或4位数字，然后打开正确的数字。

从该错误看来，当前工作目录中不存在文件001.HK.csv。检查运行脚本的目录以及该文件是否存在。

在熊猫中读取csv文件

1 个答案: