MacOS:如何修复错误PIP安装与python 3.7.4

Question

当我尝试在MacOS Mojave上安装pip时，我遇到下一个错误

我试图使用

$ brew install python 

但它不起作用

$ python --version

蟒蛇 3.7.4

$ sudo python get-pip.py 

WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting pip
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'SSLError("Can't connect to HTTPS URL because the SSL module is not available.")': /simple/pip/
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping
ERROR: Could not find a version that satisfies the requirement pip (from versions: none)
ERROR: No matching distribution found for pip
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Could not fetch URL https://pypi.org/simple/pip/: There was a problem confirming the ssl certificate: HTTPSConnectionPool(host='pypi.org', port=443): Max retries exceeded with url: /simple/pip/ (Caused by SSLError("Can't connect to HTTPS URL because the SSL module is not available.")) - skipping

Answer 1

如果 python 的 Homebrew 安装成功，则很可能已经安装了 pip。

The Hitchhiker's Guide to Python指出，当通过Homebrew安装Python时，"Homebrew[自动]为你安装指向Homebrew'd Python 3的pip。

尝试运行which pip或which pip3。如果您得到/usr/local/bin/pip或/usr/local/bin/pip3的响应，那么Homebrew已经为您安装了pip。否则请尝试brew unlink python3 && brew link python3.

为了清楚起见，来自上述指南：

$ python将启动Homebrew安装的Python 3解释器。

$ python2将启动Homebrew安装的Python 2解释器(如果有的话(。

$ python3将启动Homebrew安装的Python 3解释器。

据我所知，pip、pip2和pip3也会这样做。