I m seeing a repeated test failure on master for me locally

Question

I m seeing a repeated test failure on master for me locally in ` pants test src python pants core goals repl integration test py` deep in some python library

hundreds-breakfast-49010 · Answer

`UnicodeDecodeError ascii codec can t decode byte 0xe7 in position 51 ordinal not in range 128 `

hundreds-breakfast-49010 · Answer

is the exact error

hundreds-breakfast-49010 · Answer

are other peopel seeing this < witty crayon 22786> < jolly midnight 72759>

witty-crayon-22786 · Answer

checking

hundreds-father-404 · Answer

I saw this error message when switching dep inference to be a subprocess last week because we were trying to load the AST as a string instead of bytes But I fixed that and don t think it should still happen during dep inference might be worth isolating when it fails

witty-crayon-22786 · Answer

i don t repro

jolly-midnight-72759 · Answer

I have not see this error on my repo

jolly-midnight-72759 · Answer

we are currently running 2 1 0rc1

hundreds-breakfast-49010 · Answer

thanks for checking I think what might ve been going on is that I forgot I still had python3 6 installed and not 3 8 or 3 7 but my system python is 3 9

hundreds-breakfast-49010 · Answer

I am fixing this now and I think that makes the problem go away

enough-analyst-54434 · Answer

Makes sense Arch just rolled 3 8 gt 3 9

witty-crayon-22786 · Answer

reporting a 3 9 only bug might be good

hundreds-breakfast-49010 · Answer

I think it might ve been a 3 6 bug actually

witty-crayon-22786 · Answer

I think that that would mean that the pants script in the pantsbuild pants repo didn t filter out 3 6 appropriately

hundreds-father-404 · Answer

which is surprising to me I changed it to use the same logic as the `setup ` repo that it looks for `python3 7` or `python3 8` rather than using `python3`

hundreds-breakfast-49010 · Answer

okay I can actually confirm that something is broken on python 3 9 specifically

witty-crayon-22786 · Answer

yea that makes a bit more sense

hundreds-breakfast-49010 · Answer

if I run ` pants` in the toolchain repo ```at 14 36 18 pants help Using base prefix usr New python executable in home gregs cache pants setup bootstrap Linux x86 64 pants ThVYaB install bin python3 9 Also creating executable in home gregs cache pants setup bootstrap Linux x86 64 pants ThVYaB install bin python Installing setuptools pip wheel done Collecting pip Using cached <https files pythonhosted org packages ab 11 2dc62c5263d9eb322f2f028f7b56cd9d096bb8988fcf82d65fa2e4057afe pip 20 3 1 py2 py3 none any whl> Installing collected packages pip Found existing installation pip 19 0 3 Uninstalling pip 19 0 3 Successfully uninstalled pip 19 0 3 Successfully installed pip 20 3 1 ERROR Could not find a version that satisfies the requirement pantsbuild pants==2 1 0 ERROR No matching distribution found for pantsbuild pants==2 1 0```

hundreds-breakfast-49010 · Answer

goes away if I set `PYTHON` to my 3 8 interpreter

hundreds-breakfast-49010 · Answer

this is not what I was seeing last week I m pretty sure but it is a python3 9 related bug

witty-crayon-22786 · Answer

ah i don t think we started building for 3 9 before the 2 1 x branch

witty-crayon-22786 · Answer

so not a bug per se just that 3 9 wasn t supported for older versions

witty-crayon-22786 · Answer

although i suppose the fact that that isn t clear from the script s error is a bug

hundreds-father-404 · Answer

We ve never built for Py39 and still don t

hundreds-breakfast-49010 · Answer

it would be nice to provide a clearer error message