无法将 csv 文件导入到协作？

Question

我是python的新手，并且一直在尝试将csv文件保存到Google Collab笔记本上。我不确定我做错了什么。已经尝试使用"/"，但是它们也不起作用。

import pandas as pd
testData = pd.read_csv(r'C:UsersUserDocumentsmltraining.csv')

我收到多个错误：

FileNotFoundError                         Traceback (most recent call last)
<ipython-input-37-d77976d861ee> in <module>()
1 import pandas as pd
----> 2 testData = pd.read_csv(r'C:UsersUserDocumentsmltraining.csv')
3 
4 
4 frames
/usr/local/lib/python3.6/dist-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
/usr/local/lib/python3.6/dist-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:
/usr/local/lib/python3.6/dist-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):
/usr/local/lib/python3.6/dist-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":
/usr/local/lib/python3.6/dist-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 C:UsersUserDocumentsmltraining.csv does not exist: 'C:\Users\User\Documents\ml\training.csv'

Answer 1

Colab 无法从本地设备读取文件，它在云上的服务器上运行，并且无法访问本地文件系统。 您需要上传文件。 有很多方法可以实现此目的，请查找最适合您需求的方法。

一个示例，提示您上传文件，然后你可以将其读入笔记本。

import io
from google.colab import files
uploaded = files.upload()

df = pd.read_csv(io.BytesIO(uploaded['filename.csv']))