安装请求时如何修复 pip 错误

Question

我试图在 Ubuntu 16.04 上使用终端安装 Python 中的 API 调用请求，但出现此错误。我将如何解决它？

我已经尝试过创建一个 virtualenv 以仅将其安装在那里，但它也不起作用。

我输入了“pip install requests”

Exception:
Traceback (most recent call last):

File "/usr/local/lib/python2.7/dist-packages/pip/basecommand.py", line 209, in main status = self.run(options, args)

  File "/usr/local/lib/python2.7/dist-packages/pip/commands/install.py", line 317, in run prefix=options.prefix_path,

  File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 726, in install requirement.uninstall(auto_confirm=True)

  File "/usr/local/lib/python2.7/dist-packages/pip/req/req_install.py", line 746, in uninstall paths_to_remove.remove(auto_confirm)

  File "/usr/local/lib/python2.7/dist-packages/pip/req/req_uninstall.py", line 115, in remove renames(path, new_path)

  File "/usr/local/lib/python2.7/dist-packages/pip/utils/__init__.py", line 267, in renames shutil.move(old, new)

  File "/usr/lib/python2.7/shutil.py", line 300, in move
    rmtree(src)

  File "/usr/lib/python2.7/shutil.py", line 252, in rmtree
    onerror(os.remove, fullname, sys.exc_info())

  File "/usr/lib/python2.7/shutil.py", line 250, in rmtree
    os.remove(fullname)

OSError: [Errno 13] Permission denied: '/usr/lib/python2.7/dist-packages/idna/codec.pyc'

Answer 1

尝试使用sudo 关键字进行安装以进行权限评估。只要您知道您的凭据，以下内容就应该有效。

sudo pip install requests

Answer 2

当你打开命令提示符时，确保你open it as administrator。您可以通过以下方式执行此操作：（假设您在 Windows 上）

1：点击windows键

2：输入Command Prompt

3：右键第一个选项，选择Run as Administrator

4：在应该出现的框中单击是。

在所有这些之后，您应该能够使用pip install Requests 并安装它。如果这不起作用，您可以改用此命令（仍处于管理员模式）：

python -m easy_install Requests 或者 python -m pip install Requests