dynamic data types

[Charlie]

Hi,

The description of Python always mentions "very high level dynamic data
types". Now, I can't seem to find any examples of these (nothing
described with this term anyway). Is this simply refering to built-in
dynamic data structures such as lists and dictionaries, with a great
deal of operators defined on? Or is there something else meant by
"dynamic data types" in Python? 

Regards,

Charlie