Not finding built wheels

[jonathan-taylor]

It seems the "install_run $PLAT" step does not always find successfully built wheels e.g.

https://travis-ci.org/regreg/regreg-wheels/jobs/655009690?utm_medium=notification&utm_source=github_status

With WHEEL_SDIR='wheelhouse' (so it should be in $(TRAVIS_BUILD_DIR)/wheelhouse I think) the log says it is placed in /io/wheelhouse and then is not found by pip at install time.

[mattip]

I have seen this happen if there is already a file in /io/wheelhouse. Rather than overwrite it, somehow the manylinux fixup step deletes it instead.

[jonathan-taylor]

For some parameters / versions this is not a problem:

https://travis-ci.org/regreg/regreg-wheels/jobs/655014155?utm_medium=notification&utm_source=github_status

In this version it finds a wheel in ./wheelhouse -- I had set WHEEL_SDIR='wheelhouse' so it should find wheels in $(TRAVIS_BUILD_DIR)/wheelhouse (I think) but sometimes (as in example with failure) the wheels have been installed in /io/wheelhouse instead though I tried to explicitly set WHEEL_SDIR

[mattip]

Can you set set -e in your config.sh so it is easier to see what is going on? Extra points for setting the prompt to display the actual function/line being executed:

set -e
export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'