python3-virtualenv 20.0.17-1ubuntu0.4 (armhf binary) in ubuntu focal

 The virtualenv utility creates virtual Python instances, each invokable
 with its own Python executable. Each instance can have different sets
 of modules, installable via easy_install. Virtual Python instances can
 also be created without root access.
 .
 This is the Python 3 version of the library. It includes the command line
 script.