Question

I’d like to do something like below: particularly the ‘f.eval(field)’ part, such that it evaluates the value of the variable as the field name. How does one accomplish this in Python?

def punctuated_object_list(objects, field):     field_list = [f.eval(field) for f in objects]     if len(field_list) > 0:         if len(field_list) == 1:             return field_list[0]         else:             return ', '.join(field_list[:-1]) + ' & ' + field_list[-1]     else:         return u'' 

Answer 1

getattr(f, field), if I understand you correctly (that is, if you might have field = 'foo', and want f.foo). If not, you might want to clarify. Python has an eval(), and I don’t know what other languages’ eval() you want the equivalent of.