`python -m ensurepip --upgrade` 似乎没有升级 pip 和 setuptools

`python -m ensurepip --upgrade` does not seem to be upgrading pip and setuptools

我在 Mac 运行 Yosemite (Mac OS X 10.10.1) 并且 homebrew 安装 python 和 python3 和 python -m ensurepip --upgrade 似乎没有像我预期的那样工作。

python -m ensurepip --upgrade 不升级 pip 或 setuptools。

pip install --upgrade pip setuptools 将 pip 升级到 6.0.7,将 setuptools 升级到 12.0.5。

与 Python3 相同的结果。我是否误解了 ensurepip 的目的?

根据 documentation:

This module does not access the internet. All of the components needed to bootstrap pip are included as internal parts of the package.

和(强调我的):

To ensure the installed version of pip is at least as recent as the one bundled with ensurepip, pass the --upgrade option