OSX not building on Python 2.7

[rolyp]

Can’t build for Python 2.7.10 or 3.4.8 on my Mac or on the GitHub macos-10.15 virtual machine. Installation fails with compilation error, apparently because of wrong version of SSL library.

• remove sdist step and use of pyenv
  • verify unnecessary
  • [Errno 63] File name too long (circular file path?)
    • try pip wheel from esig and esig/build
  • new build script for 2.7 only initially
    • use virtualenv directly without pyenv
    • remove virtual environment after use
  • new GitHub job without 3.5 installation step in build-OSX-python-2.7.yml
  • extract $p from python –version so will work with 3.4 too
  • consolidate temporary folder structure
  • new GitHub job to run 2.7 build script in a Python 3.4 environment ❌ (3.4 not supported)
• experiment with dropping pyenv:
  • with Python 2.7, run python -m pip install -U pip virtualenv
    • fails with ERROR:root:code for hash md5 was not found., probably to do with my openssl shenanigans:
      • brew reinstall python@2
        • FormulaUnavailableError: No available formula with the name “/usr/local/opt/python@2/.brew/python@2.rb”
          • save python@2.rb locally then brew reinstall python@2.rb
• Anaconda experiment to have multiple Python versions without requiring pyenv, at least for 2.7 and 3.4:
  • install Anaconda for Python 3.7
  • install Python 2.7 virtual environment
  • install Python 3.4 virtual environment
    • PackagesNotFoundError: The following packages are not available from current channels: python=3.4.8
      • conda create -n myenv python=3.4 -c conda-forge
  • run wheel build in Python 3.4 virtual environment ❌
    • RuntimeError: Python 3.5 or later is required
  • run wheel build in Python 3.5 virtual environment ❌
    • fatal error: ‘string’ file not found: #include <string>
      • set CPATH=/Users/rperera/anaconda3/envs/py35/include/c++/v1/ before wheel build
    • ld: warning: directory not found for option ‘-L/opt/local/lib/’; ld: library not found for -lstdc++
    • give up for now and uninstall (seemed to be breaking pyenv install)
• discuss PyPI download statistics with Terry
• ask Peter to try building 2.7.10 and 3.4.8
• fail build if any Python installation fails
• temporarily enable OXS build on mac-build branch only
• enable SSH access to GitHub Actions build – haven’t needed it yet
• compilation error _ssl.c:684:35: error: incomplete definition of type ‘struct X509_name_entry_st’ (same error with Python 2.7 and 3.4) ❌
  • experiment to force Python 2.7 build to use [libressl-2.2.7] ❌(https://www.bountysource.com/issues/47297948-error-the-python-ssl-extension-was-not-compiled-missing-the-openssl-lib)
    • put libressl-2.2.7 somewhere local using curl -O https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.2.7.tar.gz then tar xvf libressl-2.2.7.tar.gz
    • try setting CFLAGS include dir to libressl-2.2.7 - failed, argument not passed to clang, this code which ignores CFLAGS is probably relevant, also homebrew bumped openssl from 1.0 to 1.1 on 27 Nov 2019
    • try ln -s ~/Repo/esig/build/OSX/libressl-2.2.7 /usr/local/opt/openssl@1.1 - seems to unstick compiler but fails with linker error ld: library not found for -lssl
    • copy /usr/local/opt/openssl@1.1/lib/* to libressl-2.2.7/lib - seems to unstick that link step, but fails with another linker error ld: framework not found QuickTime (and also highly dubious!)
    • improve slightly by instead trying ln -s ~/Repo/esig/build/OSX/libressl-2.2.7/include /usr/local/opt/openssl@1.1/include (linking include dir only) - should reproduce QT error
    • apparently --no-opencv will drop the QT requirement but not sure what this needs to be passed to ❌ – no need to continue this inquiry as no longer trying to build 2.7 from sources
    • install QuickTime and symlink into XCode installation ❌ – still apparently can’t find Quicktime.framework
  • experiment with force-removing openssl - later problem with ImportError: No module named zipp
  • experiment with PYTHON_CONFIGURE_OPTS=”--with-openssl-dir=./libressl-2.2.7”
  • set brew installations to specific versions - probably possible by pointing to specific .rb files but prob unnecessary
  • upgrade pyenv-virtualenv to 1.1.5 fails because openssl not symlinked??
  • remove anaconda installation so openssl isn’t picked up from there
    • removing anaconda means Python falls back to default 2.7 installation that comes with MacOS, and pip fails with ERROR:root:code for hash md5 was not found
    • reinstall system-level Python 3:
      • requires xcode-select –install (thought I already did that?)
      • brew install python3
• try with Python 2.7.1 and 2.7.17 - still fails