将 csv 文件读入 Pycharm 发生错误答案

【问题标题】：Reading csv file into Pycharm incurred error将 csv 文件读入 Pycharm 发生错误
【发布时间】：2019-12-06 04:07:06
【问题描述】：

我只想将一个 csv 文件读入 Pycharm，但由于某种原因它没有正确执行。

这是我的代码：

import csv
import os
import pandas as pd
path = '/Users/amy/Desktop/data_analysis/additionaldata/df1.csv'
df=pd.read_csv('path', sep=',')

返回错误

Traceback (most recent call last):
  File "<input>", line 3, in <module>
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/harper/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/__init__.py", line 55, in <module>
    from pandas.core.api import (
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/harper/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/core/api.py", line 24, in <module>
    from pandas.core.groupby import Grouper, NamedAgg
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/harper/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/core/groupby/__init__.py", line 1, in <module>
    from pandas.core.groupby.generic import (  # noqa: F401
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/core/groupby/generic.py", line 44, in <module>
    from pandas.core.frame import DataFrame
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/core/frame.py", line 114, in <module>
    from pandas.core.series import Series
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/core/series.py", line 84, in <module>
    import pandas.plotting
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/plotting/__init__.py", line 59, in <module>
    from pandas.plotting._core import (
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/plotting/_core.py", line 17, in <module>
    import pandas.plotting._matplotlib  # noqa
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/plotting/_matplotlib/__init__.py", line 3, in <module>
    from pandas.plotting._matplotlib.boxplot import (
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/pandas/plotting/_matplotlib/boxplot.py", line 4, in <module>
    from matplotlib.artist import setp
  File "/Applications/PyCharm CE.app/Contents/helpers/pydev/_pydev_bundle/pydev_import_hook.py", line 21, in do_import
    module = self._system_import(name, *args, **kwargs)
  File "/Users/amy/PycharmProjects/testing/venv/lib/python3.7/site-packages/matplotlib/__init__.py", line 5, in <module>
    df=pd.read_csv('path', sep=',')
AttributeError: module 'pandas' has no attribute 'read_csv'

我也试过了

import csv
import os
import pandas as pd
path = '/Users/amy/Desktop'
df=pd.read_csv("df1.csv")

这也没用。

怎么了？我已经阅读了其他一些帖子，但仍然不知道如何做到这一点。任何帮助表示赞赏。谢谢

【问题讨论】：

你也可以用 vanilla python 来阅读它。你也想过吗？此外，看起来 read_csv 不在 pandas 下，而是一个子模块。是否有任何看起来像 io 的子模块？ pd.io.read_csv 或类似的？
您是否尝试删除路径并在工作目录中运行代码？
尝试检查你是否给了一个与pandas相同的python文件的名称。这个问题在各种答案中都提到过（例如stackoverflow.com/questions/43696005/…）。
变量path在您的代码中定义但未使用，这是预期的吗？

标签： python pandas pycharm

【解决方案1】：

在将文件传递给pandas.read_csv()之前，只需添加open()即可打开文件：

import pandas as pd
path = '/Users/amy/Desktop/data_analysis/additionaldata/df1.csv'
df = pd.read_csv(open(path), sep=',')

（注意：'path' 只是一个值为'path' 的字符串，如果你想要实际的path，不应该有任何括号。）

【讨论】：

请查看 `pd.read_csv' 的文档："pandas.read_csv(filepath_or_buffer: Union[str, pathlib.Path, IO[~ AnyStr]], ..." "Parameters filepath_or_bufferstr, path object or file-like object 任何有效的字符串路径都是可以接受的。”