File "/usr/local/lib/python3.7/site-packages/pandas/core/indexes/base.py", line 2893, in get_loc raise KeyError(key) from err KeyError: 0

这个错误通常是由于在 Pandas 中使用了无效的索引或标签导致的。在这种情况下，Pandas 无法找到请求的标签或索引，因此会引发 KeyError。

可能的原因包括：

- 您正在尝试使用不存在的索引或标签。
- 您正在尝试使用整数索引，但是您的数据框中没有整数索引。
- 您的数据框可能为空。

您可以使用 `.index` 属性检查数据框的索引，确保您正在使用有效的索引或标签。您还可以使用 `.iloc` 或 `.loc` 方法根据位置或标签选择数据。

例如，如果您想要选择第一行的数据，可以使用 `.iloc` 方法，如下所示：

import pandas as pd

df = pd.DataFrame({'A': [1, 2], 'B': [3, 4]})
print(df.iloc[0])

输出：

A    1
B    3
Name: 0, dtype: int64

如果您想要选择名为“A”的列，可以使用 `.loc` 方法，如下所示：

import pandas as pd

df = pd.DataFrame({'A': [1, 2], 'B': [3, 4]})
print(df.loc[:, 'A'])

输出：

0    1
1    2
Name: A, dtype: int64

相关问题

make /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/xproto.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/bigreq.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/xc_misc.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/composite.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/damage.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/dpms.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/dri2.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/glx.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/randr.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/record.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/render.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/res.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/screensaver.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/shape.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/shm.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/sync.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/xevie.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/xf86dri.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/xfixes.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/xinerama.xml /usr/bin/python ./c_client.py -p //usr/lib/python3.8/site-packages //usr/share/xcb/xinput.xml Traceback (most recent call last): File "./c_client.py", line 1039, in <module> module.register() File "/usr/lib/python2.7/dist-packages/xcbgen/state.py", line 93, in register matcher.execute(self, self.namespace) File "/usr/lib/python2.7/dist-packages/xcbgen/matcher.py", line 115, in execute funcs[elt.tag](elt, module, namespace) KeyError: 'eventstruct' make: *** [Makefile:1018: xinput.c] Error 1

这个错误是由于使用的是 Python 2.7 而不是 Python 3.x，导致在执行 c_client.py 脚本时出现了错误。您需要在命令行中使用正确的 Python 版本来运行该脚本。您可以尝试使用以下命令来运行该脚本：

python3 c_client.py -p /usr/lib/python3.8/site-packages /usr/share/xcb/xproto.xml

您需要将所有的命令都替换为类似的命令，以正确运行该脚本。

Traceback (most recent call last): File "/usr/local/python3/bin/pyinstaller", line 8, in <module> sys.exit(_console_script_run()) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/__main__.py", line 194, in _console_script_run run() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/__main__.py", line 180, in run run_build(pyi_config, spec_file, **vars(args)) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/__main__.py", line 61, in run_build PyInstaller.building.build_main.main(pyi_config, spec_file, **kwargs) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 1019, in main build(specfile, distpath, workpath, clean_build) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 944, in build exec(code, spec_namespace) File "/root/test/2.spec", line 20, in <module> noarchive=False, File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 429, in __init__ self.__postinit__() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/datastruct.py", line 184, in __postinit__ self.assemble() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 764, in assemble self._check_python_library(self.binaries) File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/building/build_main.py", line 834, in _check_python_library python_lib = bindepend.get_python_library_path() File "/usr/local/python3/lib/python3.7/site-packages/PyInstaller/depend/bindepend.py", line 1018, in get_python_library_path raise IOError(msg) OSError: Python library not found: libpython3.7mu.so.1.0, libpython3.7.so, libpython3.7m.so.1.0, libpython3.7m.so, libpython3.7.so.1.0 This means your Python installation does not come with proper shared library files. This usually happens due to missing development package, or unsuitable build parameters of the Python installation. * On Debian/Ubuntu, you need to install Python development packages: * apt-get install python3-dev * apt-get install python-dev * If you are building Python by yourself, rebuild with `--enable-shared` (or, `--enable-framework` on macOS).

根据错误信息，问题出在找不到 Python 的共享库文件。这可能是由于缺少 Python 开发包或者 Python 安装时的构建参数不正确导致的。

以下是一些可能的解决方法：

1. 确保在 CentOS 上安装了适用于 Python 3.7 的开发包。可以使用以下命令安装：

   yum install python3-dev

如果你使用的是 Python 2.x，则可以使用以下命令安装：

   yum install python-dev

2. 如果你是自己构建 Python，那么需要重新构建并启用共享库支持。在重新构建时，可以使用 `--enable-shared` 参数（在 macOS 上使用 `--enable-framework`）来启用共享库支持。

请尝试上述方法，如果问题仍然存在，请提供更多关于你的操作系统和 Python 版本的详细信息，以便我能够更好地帮助你解决问题。