文件 b'train.csv' 不存在，即使文件存在

Question

代码：

 import pandas as pd
train_df = pd.read_csv("train.csv")

错误：

 FileNotFoundError                   Traceback (most recent call last)
    <ipython-input-17-05c7c432b69f> in <module>()
      1 import pandas as pd
      2
    ----> 3 train_df = pd.read_csv("../input/train.csv")

    /anaconda3/lib/python3.6/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

    /anaconda3/lib/python3.6/site-packages/pandas/io/parsers.py in _read(filepath_or_buffer, kwds)
    447
    448     # Create the parser.
    --> 449     parser = TextFileReader(filepath_or_buffer, **kwds)
    450
    451     if chunksize or iterator:

    /anaconda3/lib/python3.6/site-packages/pandas/io/parsers.py in __init__(self, f, engine, **kwds)
    816             self.options['has_index_names'] = kwds['has_index_names']
    817
    --> 818         self._make_engine(self.engine)
    819
    820     def close(self):

    /anaconda3/lib/python3.6/site-packages/pandas/io/parsers.py in _make_engine(self, engine)
    1047     def _make_engine(self, engine='c'):
    1048         if engine == 'c':
    -> 1049             self._engine = CParserWrapper(self.f, **self.options)
    1050         else:
    1051             if engine == 'python':

    /anaconda3/lib/python3.6/site-packages/pandas/io/parsers.py in __init__(self, src, **kwds)
    1693         kwds['allow_leading_cols'] = self.index_col is not False
    1694
    -> 1695         self._reader = parsers.TextReader(src, **kwds)
    1696
    1697         # XXX

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

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

FileNotFoundError: File b'../input/train.csv' does not exist

请帮忙！我尝试使用 pd.read_csv("../input/train.csv") 但仍然存在错误。我是使用 Jupyter notebook 的 Mac 用户。

原文由 Yun Jie Lim 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

1. 你确定你有正确的路径吗？

train_df = pd.read_csv("./input/train.csv") （如果csv文件位于与jupyter笔记本相同的文件夹中的输入文件夹中）

最简单的是你有一个包含 juptyer notebook 和 csv 文件的文件夹。那么你只需要做：

train_df = pd.read_csv("./train.csv") 或 train_df = pd.read_csv("train.csv")

1. 尝试使用 train_df = pd.read_csv("train.csv",encoding='utf-8' )

去掉 b 前面的 ‘b’../input/train.csv’

原文由 Julia 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 2

尝试使用这样的绝对路径。该行开头的 r 有助于将整个字符串原样读取为原始字符串，因此在使用 r 时，您不必担心转义斜杠

import pandas

myFile = pandas.read_csv(r"C:\Users\samarnat\Documents\Personal Docs\Projects\train.csv",encoding='utf-8')

原文由 Sandeep Amarnath 发布，翻译遵循 CC BY-SA 4.0 许可协议