Terry J. Reedy added the comment: >>> Printing a fragment of the logical line is clearly not very helpful
Given the unbounded and recursive nature of 'logical line', I disagree with that as a general, versus special-case, statement. Consider: r(a()/b(), d()/e(), g=h()/i(), ) If either e() or i() returns 0, printing all 4 lines is less helpful, by adding noise (which line has the error?), than just printing the 1 line with the ZeroDivisionError. The context is irrelevant. Or consider: mymegalist = { a, b, ... <500 lines, one item per line> xyz, } If 1 of the expressions raises an error, do you really want all 500 lines in the traceback? Again, the context is probably irrelevant. Quite aside from this, 'd()/e(),' and 'g=h()/i(),' are both legal logical lines in themselves (though with different semantics) as well as being fragments of the r call. Moreover, the multiline r call above may itself be just a fragment of a call to another function (further indented). The practical difficulty for the proposal, even if limited to multiline calls, is that any bare call could either be part of a larger expression by returning something or be a statement operating through side-effects. Similarly, any 'var=f()' call could either be an assignment statement or keyword arg expression in some other call. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12458> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com