Question

以下是我尝试在我的jupyter笔记本中运行的代码片段：

import os
#print(os.path.expanduser("~"))

import pandas as pd
data = pd.read_csv("C:\Users\sonaw\Data\dump4.csv")
print(data)

这是运行代码段时收到的错误消息：

FileNotFoundError                         Traceback (most recent call last)
<ipython-input-26-535fb23b20c4> in <module>()
      1 import pandas as pd
      2 data_filename = "dump4.csv"
----> 3 dataset = pd.read_csv("C:/Users/sonaw/Data/dump4.csv")
      4 print(dataset.head())

~\Anaconda3\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)
--> 709         return _read(filepath_or_buffer, kwds)

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in _read(filepath_or_buffer, kwds)
--> 449     parser = TextFileReader(filepath_or_buffer, **kwds)

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in __init__(self, f, engine, **kwds)
--> 818         self._make_engine(self.engine)

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in _make_engine(self, engine)
-> 1049             self._engine = CParserWrapper(self.f, **self.options)

~\Anaconda3\lib\site-packages\pandas\io\parsers.py in __init__(self, src, **kwds)
-> 1695         self._reader = parsers.TextReader(src, **kwds)

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

pandas/_libs/parsers.pyx in pandas._libs.parsers.TextReader._setup_parser_source()`enter code here`

FileNotFoundError: File b'C:/Users/sonaw/Data/dump4.csv' does not exist

为什么我看到这个错误？可能是这个问题的根源是什么？

Answer 1

谢谢大家......这个问题已经解决了。显然路径是正确的，但文件很大，需要正确命名user_cols＆amp;在读取文件时输入low_memory = False。这让我可以读取文件。

Answer 2

我今天早上遇到了非常常见且相同的错误，对此的解决方案将是。第一：看看您的文件格式是否仅为.csv？是不一样的转换成CSV。其次：使用Windows时，必须使用以下反斜杠格式。

：/用户/图案/桌面/

尝试执行此操作将解决您的问题。

在jupyter笔记本中读取csv文件时出错

2 个答案: