python-unshare binary package in Ubuntu Focal amd64

 This simple extension provides bindings to the Linux unshare() syscall, added
 in kernel version 2.6.16.
 .
 By using unshare(), new and interesting features of the Linux kernel can be
 exploited, such as:
 .
  * Creating a new network name space (CLONE_NEWNET)
  * Creating a new file system mount name space (CLONE_NEWNS)
  * Reverting other features shared from clone()
 .
 This library provides an equivalent of the util-linux command-line program
 unshare.

Source package