For numpy's runtest you need an extra `--` to set off the args to be passed as-is to pytest, so something like python runtests.py -t <mytest> -- --full-trace Matti On 12/18/20 2:17 PM, Ralf Gommers wrote:

On Fri, Dec 18, 2020 at 12:10 PM Andrew Nelson <andyfaff@gmail.com <mailto:andyfaff@gmail.com>> wrote:

If a test is hanging somewhere how do I run a full trace on it using runtests.py? pytest argument is --full-trace, which should print a stack trace if ctrl-C is pressed.

e.g.

python runtests.py -t <mytest> --full-trace

doesn't work/

That should be the right invocation. There may be a bug in the `extra_argv` handling in runtests.py. It looks like it's stripping off one of the two dashes, which doesn't look quite right.

If it works with

    python -c "import scipy; scipy.test(extra_argv=['--full-trace'])"

then it should work with runtests.py as well (unless there's a bug as mentioned above).

Cheers, Ralf

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