已解决 - Python Pandas 不导入 .csv。 错误：pandas.errors.EmptyDataError：没有要从文件中解析的列

Question

I am writing information into 2 .csv files (2 columns, separated by comma). I have ensured with time.sleep() that my desktop has enough time to write all the data to the file before pandas tries loading the information into the dataframe. It also seems like the issue remains with archorg.csv since I tried reversing the order for importing the file and pacman.csv didn't give an error, but archorg.csv still did.

    onlinedf = pd.read_csv('/home/kia/Code/update/data/archorg.csv')
    pacmandf = pd.read_csv('/home/kia/Code/update/data/pacman.csv')

When I try running this, I get the following error:

Traceback (most recent call last):
  File "/home/kia/Code/update/main.py", line 28, in <module>
    ugh = main()
  File "/home/kia/Code/update/main.py", line 20, in __init__
    filemgr.loadfiles()
  File "/home/kia/Code/update/files.py", line 10, in loadfiles
    onlinedf = pd.read_csv('/home/kia/Code/update/data/archorg.csv')
  File "/usr/lib/python3.10/site-packages/pandas/util/_decorators.py", line 311, in wrapper
    return func(*args, **kwargs)
  File "/usr/lib/python3.10/site-packages/pandas/io/parsers/readers.py", line 680, in read_csv
    return _read(filepath_or_buffer, kwds)
  File "/usr/lib/python3.10/site-packages/pandas/io/parsers/readers.py", line 575, in _read
    parser = TextFileReader(filepath_or_buffer, **kwds)
  File "/usr/lib/python3.10/site-packages/pandas/io/parsers/readers.py", line 934, in __init__
    self._engine = self._make_engine(f, self.engine)
  File "/usr/lib/python3.10/site-packages/pandas/io/parsers/readers.py", line 1236, in _make_engine
    return mapping[engine](f, **self.options)
  File "/usr/lib/python3.10/site-packages/pandas/io/parsers/c_parser_wrapper.py", line 75, in __init__
    self._reader = parsers.TextReader(src, **kwds)
  File "pandas/_libs/parsers.pyx", line 551, in pandas._libs.parsers.TextReader.__cinit__
pandas.errors.EmptyDataError: No columns to parse from file

Finally, I went to the interpreter and line by line entered the following:

>>> import pandas as pd
>>> pd.read_csv('/home/kia/Code/update/data/archorg.csv')
                  package     version
0          python-dulwich   0.20.45-1
1              sqlite-tcl    3.39.1-1
2              sqlite-doc    3.39.1-1
3         sqlite-analyzer    3.39.1-1
4                  sqlite    3.39.1-1
..                    ...         ...
223     python-voluptuous    0.13.1-1
224     python-tldextract     3.3.1-1
225    perl-file-mimeinfo      0.33-1
226  perl-crypt-passwdmd5      1.42-1
227      perl-test-simple  1.302191-1

[228 rows x 2 columns]

It seems to get the job done with no issues. I've also posted a portion of the csv file below in case there's an issue there, although I have already checked it for extra commas/whitespaces/etc.

package,version
python-dulwich,0.20.45-1
sqlite-tcl,3.39.1-1
sqlite-doc,3.39.1-1
sqlite-analyzer,3.39.1-1
sqlite,3.39.1-1
lemon,3.39.1-1
tp_smapi-lts,0.43-254
r8168-lts,8.050.03-9
acpi_call-lts,1.2.2-58
nvidia-lts,1:515.57-6
linux-lts-headers,5.15.55-1
linux-lts-docs,5.15.55-1
linux-lts,5.15.55-1
mattermost,7.1.1-1
node-gyp,9.1.0-1
trivy,0.30.0-1
sile,0.13.3-1

Edit: repo added for full review.

Edit 2: Got it to work using sep= instead of delim_whitespace, and then writing to the file with csv module instead of concatenation of strings, to remove any possibility of csv formatting errors. All files shown in repo for reference.

Answer 1

Your csv sample worked fine for me, the puzzling part is that your other file worked fine. i would suggest you try a work around and i hope it works

import pandas as pd
df = pd.read_csv("filepath", delim_whitespace=True)
df[['Package', 'Version']] = df['package,version'].str.split(',', expand=True)
df.drop(columns = "package,version", inplace=True)