Is Python a functional programming language?

[Lawrence D'Oliveiro]

In message <7xvdavd4bq.fsf at ruckus.brouhaha.com>, Paul Rubin wrote:

> Python is a pragmatic language from an imperative tradition ...

I thought the opposite of “functional” was “procedural”, not “imperative”. 
The opposite to the latter is “declarative”. But (nearly) all procedural 
languages also have declarative constructs, not just imperative ones 
(certainly Python does). Presumably an “imperative” language would not.