Python Interface to PostgreSQL

From PEP 8 - Style guide:

Indentation

Use 4 spaces per indentation level.

For really old code that you don't want to mess up, you can continue
to
use 8-space tabs.

Tabs or Spaces?

Never mix tabs and spaces.

The most popular way of indenting Python is with spaces only. The
second-most popular way is with tabs only. Code indented with a
mixture
of tabs and spaces should be converted to using spaces exclusively.


Once more:
Never mix tabs and spaces!

PgSQL.py (2.5.1) use:

tabs for even indentation levels and
zero o more tabs + four spaces for odd levels.

Seems good if you have 8 spaces tab setting in your editor, otherwise leads
in mess code.

Regards,
Pietro