My Ubuntu 21.04 came with preinstalled with python 3. I installed python 2.7 in parallel since all my programs are in python 2.7. In my modules, import dateutil
rosetta
windows-subsystem-for-linux
librt
jetpack
swiftui-navigationlink
prestashop-modules
terminal.gui
tlsharp
a2hs
wdio-jasmine
posthtml
django-autocomplete-light
qlistwidget
oculus
factominer
backbone-events
openvdb
assetic
node-worker-threads
grpc-c++
cardlayout
blazor-webassembly
icedtea-web
ember-1
rendezvous-hash
random
requests-oauthlib
vaadin-fusion
sql-abstract
tightly-coupled-code