安装 python 3 后，httpie 仍然使用 python 2.7

Question

我通过命令安装了 httpie

sudo yum install httpie

python3 命令在 PATH 上。 但是当我运行 http 命令时，它仍然使用导致错误的 python 2.7。

http命令错误

    Traceback (most recent call last):
  File "/usr/bin/http", line 9, in <module>
    load_entry_point('httpie==0.9.4', 'console_scripts', 'http')()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 489, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2852, in load_entry_point
    return ep.load()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2443, in load
    return self.resolve()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2449, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib/python2.7/site-packages/httpie/__main__.py", line 5, in <module>
    from .core import main
  File "/usr/lib/python2.7/site-packages/httpie/core.py", line 17, in <module>
    import requests
  File "/usr/lib/python2.7/site-packages/requests/__init__.py", line 58, in <module>
    from . import utils
  File "/usr/lib/python2.7/site-packages/requests/utils.py", line 32, in <module>
    from .exceptions import InvalidURL
  File "/usr/lib/python2.7/site-packages/requests/exceptions.py", line 10, in <module>
    from urllib3.exceptions import HTTPError as BaseHTTPError
  File "/usr/lib/python2.7/site-packages/urllib3/__init__.py", line 10, in <module>
    from .connectionpool import (
  File "/usr/lib/python2.7/site-packages/urllib3/connectionpool.py", line 31, in <module>
    from .connection import (
  File "/usr/lib/python2.7/site-packages/urllib3/connection.py", line 45, in <module>
    from .util.ssl_ import (
  File "/usr/lib/python2.7/site-packages/urllib3/util/__init__.py", line 5, in <module>
    from .request import make_headers
  File "/usr/lib/python2.7/site-packages/urllib3/util/request.py", line 5, in <module>
    from ..exceptions import UnrewindableBodyError
ImportError: cannot import name UnrewindableBodyError

当我运行 python 命令时，我可以确认安装了 python 3，python shell

Python 3.8.5 (default, Sep  4 2020, 07:30:14)
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

Answer 1

在不知道您的操作系统及其版本的情况下，这将是一个猜测答案:)

我敢打赌您运行的是旧版 Fedora 或 CentOS？

如果是这种情况，那么 HTTPie 版本非常旧 (0.9.4)，当时它是使用 Python 2 捆绑的。因此，当您执行sudo yum install httpie ，它将安装http和https可执行文件作为 Python 2 模块。

在评论中提出的一种解决方案是使用python3 -m pip install --upgrade httpie ：它将确保您为 Python 3 安装 HTTPie。并且http和https可执行文件也将可用。 如果这样做，您必须首先删除通过yum安装的 HTTPie 版本。