lat_list not working with who='ele.name'

[jsberg-bnl]

Use the lattice and starting directory as in #119. Then start python, and

import pytao
tao = pytao.Tao(quiet=True,noplot=True,startup_file='hsr-init.tao',init_file='tao.init')
tao.lat_list('*','ele.name')

I get nothing. If I use ele.ix_ele instead, everything is as expected.

[ken-lauer]

I can reproduce the issue. Interestingly, removing quiet=True from the Tao() kwargs yields the list of element names on my end. Does it do the same for you?

If that's the case, it may be a Bmad/Tao bug - or some subtlety that at least I haven't run into before.

[jsberg-bnl]

Yup, just found the same thing. It's arguably a Bmad bug; quiet suppresses all output to the terminal, including the output of the pipe command. I would argue if someone executed the pipe command, they wanted output to the terminal no matter what. The difference between ele.name and ele.ix_ele is between how cmd and cmd_integer work. Anyhow, I'll create a bug report on bmad-ecosystem and see what David thinks...

[jsberg-bnl]

David seems to want quiet to suppress text output from pipe. For now the only solution is really to stop using quiet.

[ken-lauer]

Seems like PyTao shouldn't support quiet mode then, as it breaks its functionality.

[ken-lauer]

In my limited testing, this will be closed when bmad-sim/bmad-ecosystem#1382 is incorporated into a release