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sympy / sympy_gamma

A SymPy version of WolframAlpha.

Home Page:https://sympygamma.com

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change apt source difficulty

HengyueLi opened this issue · comments

commented

In my area, the apt install would be very slow. So I changed the sources.list. Then I meet a problem. The details of the problem is described as following:

  • stage 1: I found the apt command is extremely slow. So I update a mirror source by replacing /etc/apt/sources.list.
  • stage 2: The command RUN apt-get update... will return the error
    ...#9 1.688 W: GPG error: http://mirrors.aliyun.com/ubuntu bionic InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3B4FE6ACC0B21F32...
  • stage 3: After a little effort on searching, I find a solution, that is :RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3B4FE6ACC0B21F32. But this command returns an error: #8 0.446 E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation.
  • stage 4: In order to install gnupg, I need first apt install. This will return back to stage 0. dead loop!

I also tried to install the package offline. But the lib dependence really frustrated me. Any solution?
By the way, is it possible to run the app without a docker?

commented

Here I attach the sources.list file content:

deb http://mirrors.aliyun.com/ubuntu/ bionic main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ bionic-security main multiverse restricted universe
deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ bionic main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main multiverse restricted universe
deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main multiverse restricted universe
commented

this problem is finally solved by finding a way to login with a shell to the docker bash and use apt with proxy. Anyway, a simple application without docker is still preferred for me.

commented

You may try https://github.com/eagleoflqj/sympy_beta if you don't mind AGPL