Missing variable in generated python from compound conditional

[snoopyjc]

In this statement, the "prev_state" variable is omitted from the generated code:

$bool = $state_chg && ($prev_state == $ST_GLOBAL);

[snoopyjc]

Fix in sub expression (pythonizer):

# issue 15 $cur_pos=expression($cur_pos+1,$end_pos,0); # preserve brackets
$cur_pos=expression($cur_pos+1,$limit,0); # preserve brackets	# issue 15

[snoopyjc]

Fixed in https://github.com/snoopyjc/pythonizer