Error with brew install pyenv

[baslat]

I'm using homebrew on WSL. I can brew install some things, but when I tried brew install pyenv I get the following error:

$ brew install pyenv

Running `brew update --auto-update`...
Error: python: /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python:1: syntax error, unexpected ..
../Formula/python@3.10.rb
^~
/home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python:1: unknown regexp options - pyth
/home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python:1: `@3' is not allowed as an instance variable name

python3 is pointing to the homebrew version.

$ which python3
/home/linuxbrew/.linuxbrew/bin/python3

I really have no idea what's going on here, so any help is most welcome please.

[gromgit]

What's the output of:

ls -ld /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python

?

[baslat]

I don't think that changed anything

➜ brew update-reset
==> Fetching /home/linuxbrew/.linuxbrew/Homebrew...

==> Resetting /home/linuxbrew/.linuxbrew/Homebrew...
branch 'master' set up to track 'origin/master'.
Reset branch 'master'
Your branch is up to date with 'origin/master'.

==> Fetching /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core...
remote: Enumerating objects: 12, done.
remote: Counting objects: 100% (9/9), done.
remote: Total 12 (delta 9), reused 9 (delta 9), pack-reused 3
Unpacking objects: 100% (12/12), 13.49 KiB | 281.00 KiB/s, done.
From https://github.com/Homebrew/homebrew-core
   850bf75e87a..81e2e2cb998  master     -> origin/master

==> Resetting /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core...
branch 'master' set up to track 'origin/master'.
Reset branch 'master'
Your branch is up to date with 'origin/master'.

==> Fetching /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/microsoft/homebrew-git...

==> Resetting /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/microsoft/homebrew-git...
branch 'master' set up to track 'origin/master'.
Reset branch 'master'
Your branch is up to date with 'origin/master'.


~ took 13.4s …
➜ ll -ld /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python
Permissions Size User Date Modified Git Name
.rw-r--r--    25 bas  10 Sep 06:00   -- /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python

[gromgit]

What's the output of the following?

brew config
brew doctor

?

[baslat]

➜ brew config
W_VERSION: 3.6.0-30-g2d0c32f
ORIGIN: https://github.com/Homebrew/brew
HEAD: 2d0c32fa916c25cec95413cec0e367b46e4b6bfd
Last commit: 27 hours ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 3cd10f7e8f23c6f8a95b2f784b28e11ab401a836
Core tap last commit: 14 hours ago
Core tap branch: master
HOMEBREW_PREFIX: /home/linuxbrew/.linuxbrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 12
Homebrew Ruby: 2.6.8 => /home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/vendor/portable-ruby/2.6.8_1/bin/ruby
CPU: dodeca-core 64-bit unknown_0x6_0xa5
Clang: N/A
Git: 2.37.3 => /home/linuxbrew/.linuxbrew/bin/git
Curl: 7.68.0 => /bin/curl
Kernel: Linux 5.15.57.1-microsoft-standard-WSL2 x86_64 GNU/Linux
OS: Ubuntu 20.04.5 LTS (focal)
Host glibc: 2.31
/usr/bin/gcc: 9.4.0
/usr/bin/ruby: N/A
glibc: 2.35
gcc@11: 11.3.0
xorg: N/A


~ …

➜ brew doctor
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: You have unlinked kegs in your Cellar.
Leaving kegs unlinked can lead to build-trouble and cause formulae that depend on
those kegs to fail to run properly once built. Run `brew link` on these:
  python@3.9

~ took 7.1s …


➜ brew link python@3.9
Linking /home/linuxbrew/.linuxbrew/Cellar/python@3.9/3.9.14... 2260 symlinks created.


➜ brew doctor
Your system is ready to brew.


➜ brew install pyenv
Error: python: /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python:1: syntax error, unexpected ..
../Formula/python@3.10.rb
^~
/home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python:1: unknown regexp options - pyth
/home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core/Aliases/python:1: `@3' is not allowed as an instance variable name

~ took 6.7s …

[carlocab]

Try

rm -rf "$(brew --repository homebrew/core)"
brew tap homebrew/core

If that doesn't help, what is the output of

cd "$(mktemp -d)"
touch foo
ln -s foo bar
ls -la .

?

[baslat]

That didn't work either.

➜ cd "$(mktemp -d)"

/tmp/tmp.C1RqcC41iM …
➜ touch foo

/tmp/tmp.C1RqcC41iM …
➜ ln -s foo bar

/tmp/tmp.C1RqcC41iM …
➜ ls -la .
total 60
drwx------    2 bas  bas   4096 Sep 11 13:10 .
drwxrwxrwt 1319 root root 53248 Sep 11 13:10 ..
lrwxrwxrwx    1 bas  bas      3 Sep 11 13:10 bar -> foo
-rw-r--r--    1 bas  bas      0 Sep 11 13:10 foo

[cho-m]

Could be some symlink behavior on WSL (either system limitation or maybe the initial Git that was used to install Homebrew), but personally not familiar and don't have a setup to test out.

Could also check if git repo has core.symlinks set to false which would also cause similar behavior of cloning symlinks as files.

git -C /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core config --get-all core.symlinks

---

If this is due to symlink behavior, it may be possible to force core.symlinks=true and try to get proper symlinks to get created.

Someone who is using WSL might be able to comment better on this possibility.

---

Maybe also try manually recreating repo:

rm -rf /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core
brew tap homebrew/core

[baslat]

I think you're on to something. My global .gitconfig has symlinks = false. I changed that to true, then did the rm -rf /home/linuxbrew/.linuxbrew/Homebrew/Library/Taps/homebrew/homebrew-core & brew tap homebrew/core again, and now brew install pyenv is working.

Thanks all!