upgrade to Ubuntu 22, b2sdk 2.x, add instructions to README

README.md

@@ -86,7 +86,8 @@ sudo chsh ubuntu
 # install and set up huffduff-video
 cd ~/src
 git clone https://github.com/snarfed/huffduff-video.git
-sudo pip3 install b2sdk webob yt-dlp
+cd huffduff-video
+sudo pip3 install -r requirements.txt
 
 # add these lines to /etc/httpd/conf/httpd.conf
 #
@@ -135,6 +136,21 @@ EOF
 crontab crontab
 ```
 
+### Upgrading OS
+
+huffduff-video is pretty small and simple, it doesn't have many unusual dependencies or needs, so I've generally had good luck using Ubuntu's [`do-release-upgrade`](https://askubuntu.com/questions/409555/what-does-do-release-upgrade-really-do) tool to [upgrade from one Ubuntu LTS version to the next](https://ubuntu.com/server/docs/how-to-upgrade-your-release) ([more](https://help.ubuntu.com/community/Upgrades), [even more](https://help.ubuntu.com/community/UpgradeNotes)):
+
+```sh
+sudo apt-get update
+sudo apt-get upgrade
+sudo do-release-upgrade
+```
+
+Python installed packages may disappear, make sure to reinstall those with sudo! Otherwise Apache's mod_wsgi won't see them, or will see older versions.
+
+```
+sudo pip3 install -r requirements.txt
+```
 
 ## SSL
 

app.py

@@ -15,9 +15,10 @@
 import sys
 import urllib.parse
 
-from b2sdk.account_info.in_memory import InMemoryAccountInfo
-from b2sdk.api import B2Api
-from b2sdk.progress import AbstractProgressListener
+# https://github.com/Backblaze/b2-sdk-python/blob/master/CHANGELOG.md#changed-2
+from b2sdk.v1 import InMemoryAccountInfo
+from b2sdk.v1.api import B2Api
+from b2sdk._internal.progress import AbstractProgressListener
 import boto.ec2.cloudwatch
 import requests
 import webob

requirements.txt

@@ -0,0 +1,5 @@
+b2sdk==1.9.0
+boto==2.49.0
+requests==2.32.3
+WebOb==1.8.7
+yt-dlp>=2024.5.27