Some software (DS, GUIs, etc) may require a certain version of Tango and/or PyTango.
It would be nice to be able to check software against a minimum Tango/PyTango version at runtime.
Example:
from PyTango import requires_pytango, requires_tango
requires_tango('8.1.0')
requires_pytango('8.1.2')
Implemented in PyTango SVN trunk since revision #26296
Will become visible in next PyTango 8.1.4 (PyTango 8.1.3 will be skipped)