I've just released a new version of PSI! PSI is a cross-platform Python package providing real-time access to processes and other miscellaneous system information such as architecture, boottime and filesystems. Among the highlights of this release are:

Improved handling of time

We now have our own object to represent time. This may seem silly at first but it actually makes it easier to use all the normal ways of representing time easily as well as provide the highest possible accuracy.

Improved handling of process names and arguments

There is an entire wiki page dedicated to this, but basically this simplifies presenting sensible process names to users massively since some attributes will always have meaningful values.

Restructured exceptions:

Whenever accessing attributes you will get a subclass of AttributeError like it should be so now you can happily use getattr().

New experimental methods on Process objects

You can now send signals to processes using the .kill() method and find their children by using the .children() method.

New experimental mount module

You can get detailed information about all mounted filesystems using this new module. It provides mount information as well as usage.

Another notable improvement is the ability to read the arguments of a 64-bit process while running inside a 32-bit python process on Solaris. It's small and almost no-one will notice it but make it so much more consistent!