On Wed, Apr 20, 2016 at 2:19 AM, Terry Reedy <tjreedy@udel.edu> wrote:
On 4/20/2016 12:07 AM, Émanuel Barry wrote:
This idea was mentioned a couple of times in the previous thread, and it seems reasonable to me. Getting recursion errors when testing a function in the interactive prompt often screwed me over, as I have a limited scrollback of 1000 lines at best on Windows (I never checked exactly how high/low the limit was), and with Python's recursion limit of 1000, that's a whopping 1000 to 2000 lines in my console, effectively killing off anything useful I might have wanted to see. Such as, for example, the function definition that triggered the exception.
For those who don't know, the Windows console uses a circular buffer of lines. The default size was once 300, I believe -- too small to contain a run of the test suite. (I seems to be less on Win 10). The max with win 10 appears to be 999 (x 4? unclear).
I'm guessing you pulled the 999x4 from the Options tab of the properties dialog, but that option is actually for command history (i.e. the ability to use the up arrow to recall previous commands). That has a limit of 999 commands in the buffer, with a limit of 999 (not 4, which is the default) total buffers in memory across all open CMD.EXE instances. (Not sure what happens when you open more instances than that limit is set to.) The setting for scrollback is found under the Layout tab, and is disguised as the Height option in the Screen Buffer Size section. That has a limit of 9,999 lines, and I do believe it defaulted to 300 (I changed that setting so long ago that I no longer remember for sure what the stock default was).