- update to 1.3.4:
* Fixed regression caused by the fix for :ticket:`320` where new
logic added to interpret list and dictionary comprehensions
would fail for expression oriented keys. As the parsing in
question was not necessary for these
keys, it's been removed.
* Fixed issue where a parsed expression which contained
sub-brackets, such as dictionary literals, would fail to be
interpreted correctly even though the
initial parsing is correct.