对于Windows 10下的Miniconda3, python=3.7.5，我尝试了以上所有建议;毫无效果。我不得不降级到python=3.7.0，这解决了这个问题

conda install python=3.7.0

显然这很混乱。答案表明升级到3.8.5也可以工作，但这在我的环境中有太多的副作用。

只要尝试通过Anaconda提示安装即可

Windows 10, Windows 7 如果pip install在CMD提示符下不工作，使用Anaconda提示符运行它-它工作。

https://github.com/pypa/virtualenv/issues/1139

我试着:

python -m pip install --upgrade pip

在那之后，它在Windows 10中工作得很好。

对于OpenSUSE，以同样的方式，但对上面列出的包做了一些更改:

zypper install zlib-devel libopenssl-devel ncurses-devel sqlite3-devel readline-devel tk-devel gdbm-devel libpcap-devel xz-devel

然后cd到Python源代码dir和

make
make install

or

make
make altinstall

也许

ln -s /usr/local/lib64/python3.6/lib-dynload/ /usr/local/lib/python3.6/lib-dynload

应该为OpenSUSE用户执行。请参见Python 3.7安装无法在openSUSE Leap 42.3上工作

你可以尝试brew链接，它会告诉你正确的说明:

$ brew link openssl --force
Warning: Refusing to link macOS provided/shadowed software: openssl@1.1
If you need to have openssl@1.1 first in your PATH run:
  echo 'export PATH="/usr/local/opt/openssl@1.1/bin:$PATH"' >> ~/.zshrc

For compilers to find openssl@1.1 you may need to set:
  export LDFLAGS="-L/usr/local/opt/openssl@1.1/lib"
  export CPPFLAGS="-I/usr/local/opt/openssl@1.1/include"

For pkg-config to find openssl@1.1 you may need to set:
  export PKG_CONFIG_PATH="/usr/local/opt/openssl@1.1/lib/pkgconfig"