Condition on generated code for function() or die() is backwards

[snoopyjc]

Given this perl code:

open(FILE,'<',$file) or die("cannot open $file $!");

The generated python code is calling the die() routine if the open succeeds, instead of fails:

if(FILE:=open(file,'r')):
   sys.exit(f"cannot open {file} {sys.last_value}")

[snoopyjc]

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