mise/Issue/Conflict with PyEnv on Shell Startup

• solve #Error - "no precompiled python found for <REPONAME>, force mise to use a version with mise settings set python.compile false

  • original error - while running mise/Task/LLM/copy_buffer_bundle

    • mise run llm:copy_buffer_bundle                         
      mise WARN  no precompiled python found for codekiln, force mise to use a precompiled version with `mise settings set python.compile false`
      python-build: definition not found: codekiln
      mise ERROR ~/Library/Caches/mise/python/pyenv/plugins/python-build/bin/python-build failed
      python-build: definition not found: codekiln
      mise ERROR failed to install core:python@codekiln
      mise ERROR ~/Library/Caches/mise/python/pyenv/plugins/python-build/bin/python-build exited with non-zero status: exit code 2
      mise ERROR Run with --verbose or MISE_VERBOSE=1 for more information

    • research #C35S

      • Root Cause

        • Both tools use similar mechanisms to manage Python versions
        • Both modify PATH and use shims to intercept Python commands
        • When both are active, they conflict in reading .python-version files

      • Immediate Solutions

        • Option A: Disable Python compilation in mise

          • bash

            mise settings set python.compile false

        • Option B: Remove .python-version files and use mise's configuration

          • bash

            rm .python-version
            mise use python@<version>

        • #Chosen Option C: Configure mise to ignore Pyenv/.python-version files

          • Add to ~/.config/mise/config.toml:
          • toml

            [settings]
            # idiomatic_version_file is true by default, so we only need to specify which tools to disable
            idiomatic_version_file = true
            # disable reading of .python-version files while still allowing other version files (e.g. .nvmrc)
            # see: https://mise.jdx.dev/configuration.html
            idiomatic_version_file_disable_tools = ['python']

            • #Observation/My - this technique could also be used to handle similar issues with nvm/.nvmrc

      • Long-term Recommendations

        • Choose one tool as the primary Python version manager
          • If migrating to mise: Remove pyenv configuration from shell startup files
          • If keeping pyenv: Configure mise to ignore Python version management
        • For mise-managed projects
          • Use mise.toml for version configuration instead of .python-version
          • Consider running mise sync python to import existing pyenv installations

      • Prevention

        • Remove or comment out pyenv initialization in shell config files
        • Use mise's built-in Python version management features exclusively

  • other observed behavior - mise WARN missing: python@codekiln

    • in directories that use Pyenv/.python-version, upon starting up a new shell, mise is repeatedly issuing a #Warning

      • mise WARN  missing: python@codekiln
        mise WARN  missing: python@codekiln
        mise WARN  missing: python@codekiln
        mise WARN  missing: python@codekiln
        mise WARN  missing: python@codekiln
        mise WARN  missing: python@codekiln
        mise WARN  missing: python@codekiln

    • Update - likely cause of repeated warnings was a mistaken entry in .zshrc

      • Somehow, my zsh/.zshrc ended up with this - probably because I needed more coffee when installing mise, LOL

        • echo 'eval "$(mise activate zsh)"' >> ~/.zshrc

        • As a result, my .zshrc was adding mise activate on every shell spawn - DOH!
        • after removing that, this behavior went away.