Yahoo groups is going away: can I use Mathematica to download the old messages?

It looks like all the old email messages from my group are stored in web pages with URLs that look like this:

page="https://groups.yahoo.com/neo/groups/arco-75/conversation/messages/19291"] 

That’s email number 19291, and the others have the same form but different numbers at the end. What I am hoping to do is to grab all the old messages. The problem is that:

ans = Import[page] 

returns stuff that begins with “Sorry, an error occurred while loading the content.” From the look of it, I’m guess that the problem is that my Import statement is not “logged in” to the website, and so it is rejecting the request. Does anyone know how to “log in” to the yahoo site (to enable downloading of the old emails)?

getting error while installing docker: “docker-ce : Depends: containerd.io (>= 1.2.2-3) but it is not going to be installed “

i am trying to install docker on my ubuntu 18.04, but i am getting this error while installing docker. The error says: The following packages have unmet dependencies: docker-ce : Depends: containerd.io (>= 1.2.2-3) but it is not going to be installed, E: Unable to correct problems, you have held broken packages.

Ubuntu 18.04.3 Keeps Going To Sleep After I Re-Open Laptop

So for a while I’ve wanted to switch over to Linux. I chose Ubuntu because I thought it would be really easy to transition from Windows. However, I’ve had a myriad of problems but the worst one is that if I close my laptop and then re-open it, sign in, after about 10 seconds the laptop just goes back to sleep. This continues until I restart my laptop. I’m new to Linux but am comfortable navigating the terminal a bit. Any help is appreciated thank you.

Ubuntu 18.04.3 Keeps Going To Sleep After I Re-Open Laptop

So for a while I’ve wanted to switch over to Linux. I chose Ubuntu because I thought it would be really easy to transition from Windows. However, I’ve had a myriad of problems but the worst one is that if I close my laptop and then re-open it, sign in, after about 10 seconds the laptop just goes back to sleep. This continues until I restart my laptop. I’m new to Linux but am comfortable navigating the terminal a bit. Any help is appreciated thank you.

Why does going from 2’s complement (in binary) to the positive value by completing to 1 then adding 1 work?

I’m studying Computer science and this has confused me for a long time since our professor didn’t give any proof.

When changing from 2’s complement to the positive value, we can go in reverse (by subtracting 1, then using 1’s complement), and that’s clear why it works.

But our professor told us another method which is taking the number, using 1’s complement, THEN adding 1.

I don’t understand why the second method works.

How to move an object while the animation is going on?

I added a jump animation with the character in unity and to move the character I have some code like this:

if (Input.GetKeyDown(KeyCode.Space))     {          transform.Translate(Vector3.forward * 1 * jumpSpeed);         Anim.SetTrigger("is_jumping");     } 

But here the character first moving its position (like a glitch) and then doing the animation. How can I make them happen at the same time?

Broken Ubuntu repo, Depends: xxx but it is not going to be installed

My Ubuntu 18.04 repo is broken with the “Depends: xxx but it is not going to be installed” error. Further investigation makes me believe it is caused by the conflict naming convention of the package versions:

% apt install libqt5gui5 Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation:  The following packages have unmet dependencies:  libqt5gui5 : Depends: libxkbcommon-x11-0 (>= 0.5.0) but it is not going to be installed E: Unable to correct problems, you have held broken packages.   % apt install libxkbcommon-x11-0 The following packages have unmet dependencies:  libxkbcommon-x11-0 : Depends: libxkbcommon0 (= 0.8.0-1) but 0.8.0-1ubuntu0.1 is to be installed E: Unable to correct problems, you have held broken packages.   % apt-cache policy libxkbcommon0 libxkbcommon0:   Installed: 0.8.0-1ubuntu0.1   Candidate: 0.8.0-1ubuntu0.1   Version table:  *** 0.8.0-1ubuntu0.1 100         100 /var/lib/dpkg/status      0.8.0-1 500         500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages 

I.e., the libxkbcommon0 was 0.8.0-1ubuntu0.1 when I first installed it, but it is now of version 0.8.0-1 (same version but without the ubuntu0.1), which is causing the trouble all the way up to the “Depends: xxx but it is not going to be installed” error.

How to fix it?