On 2015年2月20日 14:05:11 +0000
Brett Cannon <[email protected]> wrote:
On Thu Feb 19 2015 at 5:52:07 PM Serhiy Storchaka <[email protected]>
wrote:
Different patterns for TypeError messages are used in the stdlib:
expected X, Y found
expected X, found Y
expected X, but Y found
expected X instance, Y found
X expected, not Y
expect X, not Y
need X, Y found
X is required, not Y
Z must be X, not Y
Z should be X, not Y
and more.
What the pattern is most preferable?
My preference is for "expected X, but found Y".
If we are busy nitpicking, why are we saying "found Y"? Nothing was
*found* by the callee, it just *got* an argument.
So it should be "expected X, but got Y".
Personally, I think the "but" is superfluous: the contradiction is
already implied, so "expected X, got Y" is terser and conveys the
meaning just as well.
Regards
Antoine.