包 Python3.7 不可用

Question

所以我有 python 3.8 和 pip，但我也想安装稳定的 python 3.7 和 pip。但是当我尝试 sudo apt-get install python3.7 它说包不可用但被引用到另一个包。请帮助错误：

 Reading package lists... Done
Building dependency tree
Reading state information... Done
Package python3.7 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'python3.7' has no installation candidate

原文由 Vasily Sobolev 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

我尝试在 Kali Linux 的 官方 docker 镜像中执行以下步骤。它也应该在桌面上工作。

 apt-get update
apt-get install -y build-essential openssl openssl-dev* wget curl
wget https://www.python.org/ftp/python/3.7.8/Python-3.7.8.tgz
tar -xvf Python-3.7.8.tgz
cd Python-3.7.8
./configure --enable-shared
make
make test
make install

# Steps from here are to enable other libraries in linux to
# access the shared python libraries.

cd /usr/local/lib/
cp libpython3.so /usr/lib64/
cp libpython3.so /usr/lib
cp libpython3.7m.so.1.0 /usr/lib64/
cp libpython3.7m.so.1.0 /usr/lib/
cd /usr/lib64
ln -s libpython3.7m.so.1.0 libpython3.7m.so
cd /usr/lib
ln -s libpython3.7m.so.1.0 libpython3.7m.so

大功告成，python3.7安装完毕。

 root@fe794c7ff15e:~# python3
Python 3.7.8 (default, Aug 15 2020, 16:26:34)
[GCC 9.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

我尝试使用此安装创建一个 python 虚拟环境。它工作正常。我也能够安装 pip 包。

 (testvirtual) root@fe794c7ff15e:~# pip install flask
Collecting flask
  Downloading Flask-1.1.2-py2.py3-none-any.whl (94 kB)
     |████████████████████████████████| 94 kB 404 kB/s
Collecting Jinja2>=2.10.1
  Downloading Jinja2-2.11.2-py2.py3-none-any.whl (125 kB)
     |████████████████████████████████| 125 kB 10.4 MB/s
Collecting click>=5.1
  Downloading click-7.1.2-py2.py3-none-any.whl (82 kB)
     |████████████████████████████████| 82 kB 165 kB/s
Collecting Werkzeug>=0.15
  Downloading Werkzeug-1.0.1-py2.py3-none-any.whl (298 kB)
     |████████████████████████████████| 298 kB 11.9 MB/s
Collecting itsdangerous>=0.24
  Downloading itsdangerous-1.1.0-py2.py3-none-any.whl (16 kB)
Collecting MarkupSafe>=0.23
  Downloading MarkupSafe-1.1.1-cp37-cp37m-manylinux1_x86_64.whl (27 kB)
Installing collected packages: MarkupSafe, Jinja2, click, Werkzeug, itsdangerous, flask
Successfully installed Jinja2-2.11.2 MarkupSafe-1.1.1 Werkzeug-1.0.1 click-7.1.2 flask-1.1.2 itsdangerous-1.1.0

原文由 Kaustubh Desai 发布，翻译遵循 CC BY-SA 4.0 许可协议