在 Msys 上安装 Pip

我使用 Python 3.5.2 和 Msys 构建了一个简单的 PyGTK 应用程序，但我需要一些默认安装中没有的模块，尽管我可以使用setup.py install为了得到它们我宁愿使用pip.

我环顾四周发现this https://sourceforge.net/p/msys2/mailman/message/34096495/但它与 Python 2 相关，并且在尝试遵循给出的说明时出现错误：

$ python3 getpip.py

Collecting pip
  Downloading pip-9.0.1-py2.py3-none-any.whl (1.3MB)
Collecting setuptools
  Using cached setuptools-38.2.5-py2.py3-none-any.whl
Collecting wheel
  Using cached wheel-0.30.0-py2.py3-none-any.whl
Installing collected packages: pip, setuptools, wheel
Exception:
Traceback (most recent call last):
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\basecommand.py", line 215, in main
    status = self.run(options, args)
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\commands\install.py", line 342, in run
    prefix=options.prefix_path,
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\req\req_set.py", line 784, in install
    **kwargs
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\req\req_install.py", line 851, in install
    self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\req\req_install.py", line 1064, in move_wheel_files
    isolated=self.isolated,
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\wheel.py", line 462, in move_wheel_files
    generated.extend(maker.make(spec))
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 372, in make
    self._make_script(entry, filenames, options=options)
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 276, in _make_script
    self._write_script(scriptnames, shebang, script, filenames, ext)
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 212, in _write_script
    launcher = self._get_launcher('t')
  File "C:\Users\Simon\AppData\Local\Temp\tmpoumuod3r\pip.zip\pip\_vendor\distlib\scripts.py", line 351, in _get_launcher
    result = finder(distlib_package).find(name).bytes
AttributeError: 'NoneType' object has no attribute 'bytes'

我尝试了一种安装方式pip在 Linux 上：

pacman -S python2-pip           
pacman -S python-pip           

如所列here https://www.tecmint.com/install-pip-in-linux/， 也：

pacman -S python3-pip

但每次我得到一个error: target not found: error.

令人惊讶的是我找不到其他任何东西。

那么我怎样才能得到pip在 Msys 上？

Thanks.

请注意，此时以下命令正在 msys2 上运行：

$ pacman -S python3-pip
$ pip3 install --upgrade pip