Foundations of Libvirt Development: How to Set Up and Maintain a Virtual Machine Environment with Python

© W. David Ashley 2019

W. David AshleyFoundations of Libvirt Development https://doi.org/10.1007/978-1-4842-4862-1_8

8. Error Handling

W. David Ashley¹ 

(1)

Austin, TX, USA

 

The libvirt error functions are designed to give more detailed information about what caused a failure in the case that a normal libvirt function or method returns an error. An important thing to note about Python libvirt error reporting is that errors are stored on a per-thread basis and not per connection.

The libvirtError Class

The libvirt Python module defines a standard exception class called libvirtError that can be subclassed to add additional functionality when raising a libvirt exception. Listing 8-1 shows a partial definition of the libvirtError class definition.

class ...