On 7/31/2019 11:19 PM, jsals...@gmail.com wrote:
Honestly this is the only thing in over half a decade of daily python use which
has disappointed me enough to want to ask the devs:
print(1/)
File "<stdin>", line 1
print(1/)
^
SyntaxError: invalid syntax
SyntaxErrors mostly come from the parser, occasionally from the
compiler, both of which have access to line and column.
print(1/1, 1/0, 1/1)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ZeroDivisionError: division by zero
This comes from the runtime engine, which only has access to line
numbers, and even line numbers lie when a statement spans multiple
lines. In CPython, the runtime engine is executing bytecodes, and
bytecode do not correspond to column numbers. In something like
"a + b / (2 * c + d//3)", if the denominator (which could be on multiple
lines) is 0, where should a caret point?
--
Terry Jan Reedy
--
https://mail.python.org/mailman/listinfo/python-list
