Jitpack build broken due to python3 switch

[mikekap]

Sample log: https://jitpack.io/com/github/facebook/buck/3e23794873/build.log

Relevant lines:

BUILD SUCCESSFUL
Total time: 1 minute 7 seconds
+++ bin/buck build buck --show-output
+++ awk '{print $2}'
Not using buckd because watchman isn't installed.
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8 -Dhttps.protocols=TLSv1.2
PARSING BUCK FILES: FINISHED IN 0.8s
CREATING ACTION GRAPH: FINISHED IN 0.1s
DOWNLOADED 0 ARTIFACTS, 0.00 BYTES, 0.0% CACHE MISS
BUILDING: FINISHED IN 1.1s
BUILD FAILED
No python interpreter found (searched python3).
    When creating rule //py/hash:hash_files.
++ PEX=
2020-02-08T06:34:20.044197191Z
Exit code: 1

[v-jizhang]

@mikekap, please build with -c python.interpreter=python
This is caused by that Python@2 was EOL, Homebrew/homebrew-core#49796. Python3 installation does not create the interpreter "python3" any longer.

[mikekap]

This isn’t a build on my machine - this is from jitpack. I’m just following the instructions in the readme: https://github.com/facebook/buck/blob/master/README.md#prebuilt-buck-binaries .

Specifically I think this yaml file installs python2 rather than 3: https://github.com/facebook/buck/blob/master/jitpack.yml .

[v-jizhang]

Jitpack needs a field to make sure that python3 in installed. It's in my task list now.

[qyang-nj]

Ran into the same issue today 🙁

[v-jizhang]

@kageiit Could you build and upload relocatable python3 to your repo? https://github.com/kageiit/jitpack-python/releases
Thanks

[kageiit]

Sure