[MacPorts] #65097: py38-jinja2 @3.1.2 does not build macOS High Sierra, Version 10.12.6, because: /opt/local/Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8: No module named install.__main__; 'install' is a package and cannot be directly executed

[MacPorts]

#65097: py38-jinja2 @3.1.2 does not build macOS High Sierra, Version 10.12.6,
because:
/opt/local/Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8:
No module named install.__main__; 'install' is a package and cannot be
directly executed
------------------------+------------------------
  Reporter:  ballapete  |      Owner:  jmroot
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.7.2
Resolution:             |   Keywords:  highsierra
      Port:  py-jinja2  |
------------------------+------------------------

Comment (by reneeotten):

 Replying to [comment:6 ballapete]:

 We recommend to stick with one way of installing packages, either through
 MacPorts or using `pip` and avoid mixing/matching as this often leads to
 problems that are difficult to diagnose....
 Additionally, please make sure you have no packages installed in your
 local user directory (e.g.,
 `/Users/<username>/Library/Python/3.8/lib/python/site-packages/`) that
 could possibly interfere.


 > I uninstalled and then re-installed the four other packages with port.
 When I now try to upgrade `py38-jinja2` I still get:
 >
 > {{{
 > Executing:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_macports_release_tarballs_ports_python_py-
 jinja2/py38-jinja2/work/Jinja2-3.1.2" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8
 -m build --wheel --no-isolation --outdir
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_macports_release_tarballs_ports_python_py-jinja2/py38-jinja2/work
 > DEBUG: system:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_macports_release_tarballs_ports_python_py-
 jinja2/py38-jinja2/work/Jinja2-3.1.2" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8
 -m build --wheel --no-isolation --outdir
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_macports_release_tarballs_ports_python_py-jinja2/py38-jinja2/work
 > Traceback (most recent call last):
 >   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/runpy.py",
 line 194, in _run_module_as_main
 >     return _run_code(code, main_globals, None,
 >   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/runpy.py",
 line 87, in _run_code
 >     exec(code, run_globals)
 >   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/build/__main__.py", line 390, in <module>
 >     main(sys.argv[1:], 'python -m build')
 >   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/build/__main__.py", line 337, in main
 >     _setup_cli()
 >   File
 "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/build/__main__.py", line 71, in _setup_cli
 >     colorama.init()  # fix colors on windows
 > AttributeError: module 'colorama' has no attribute 'init'
 > Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_macports_release_tarballs_ports_python_py-
 jinja2/py38-jinja2/work/Jinja2-3.1.2" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8
 -m build --wheel --no-isolation --outdir
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_macports_release_tarballs_ports_python_py-jinja2/py38-jinja2/work
 > Exit code: 1
 > Warning: The following existing file was hidden from the build system by
 trace mode:
 >
 /opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/colorama/__init__.py
 > Error: Failed to build py38-jinja2: command execution failed
 > }}}
 >
 > So I also uninstalled and re-installed py38-colorama. This does not
 change anything.

 that's a different problem than you mention when you opened this ticket.
 The problem you have no is actually due to building in trace-mode, that
 doesn't work properly with the PEP517 build tools. It tries to import the
 `colorama` module and that fails because the port doesn't declare a
 dependency on it - which it shouldn't as that is only needed on Windows.
 The issue appears that the test whether the module is available works in
 trace-mode, but then the actual usage doesn't. That's on my to-do list to
 take a closer look... at this stage, please try again without trace mode
 and see if that works now.

 > BTW, I often see this warning:
 {{{
 >
 /opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8
 /site-packages/setuptools/command/install.py:34:
 SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build
 and pip and other standards-based tools.
 }}}

 That's just a deprecation warning for setuptools - these can be ignored
 for now..

-- 
Ticket URL: <https://trac.macports.org/ticket/65097#comment:8>
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