我正在尝试安装 Python 框架 Kivy，但在使用 pip 时遇到了问题。
按照说明进行操作https://kivy.org/doc/stable/installation/installation-linux.html 我收到以下错误。
有人能帮忙吗？我应该在这里发布什么意见来解决这个问题？
$ python -m pip install --upgrade --user pip setuptools virtualenv
pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Cache entry deserialization failed, entry ignored
Could not fetch URL https://pypi.python.org/simple/pip/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
Requirement already up-to-date: pip in /usr/local/lib/python3.6/site-packages
Could not fetch URL https://pypi.python.org/simple/setuptools/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
Requirement already up-to-date: setuptools in /usr/local/lib/python3.6/site-packages
Collecting virtualenv
Could not fetch URL https://pypi.python.org/simple/virtualenv/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
Could not find a version that satisfies the requirement virtualenv (from versions: )
No matching distribution found for virtualenv
--- 详细信息 --- Ubuntu 18.04.4 LTS “bionic”
答案1
安装 openssl 包。
sudo apt install openssl
这应该可以做到。如果没有修复并且您正在使用 python3，那么您可以安装：
sudo apt install python3-pip
然后尝试这个：
pip3 install setuptools vurtualenv