I am attempting to upgrade from Plone 5.0.10 to Plone 5.1-latest so that I can migrate to using Python3. I have run into an issue with a BTree requirement, but I cannot tell if it is instead an issue with zc.buildout, plone.recipe.zeoserver, or setuptools.
I have updated my buildout.cfg with:
extends =
base.cfg
# versions.cfg
https://dist.plone.org/release/5.1-latest/versions.cfg
# If you change your Plone version, you'll also need to update
# the repository link below.
find-links +=
https://dist.plone.org/release/5.1-latest
# change made for functools32 when going from 5.0.6 to 5.0-latest
find-links += https://pypi.python.org/project/functools32
index = https://pypi.python.org/simple
I am encountering an error:
Getting distribution for 'BTrees==4.4.1'.
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 2147, in main
lambda: setup(
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 2133, in with_ei_usage
return f()
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 2150, in <lambda>
distclass=DistributionWithoutHelpCommands, **kw
File "/usr/lib/python2.7/distutils/core.py", line 151, in setup
dist.run_commands()
File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
self.run_command(cmd)
File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 370, in run
self.easy_install(spec, not self.no_deps)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 594, in easy_install
return self.install_item(None, spec, tmpdir, deps, True)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 643, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 833, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1055, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1040, in run_setup
run_setup(setup_script, args)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 68, in run_setup
DirectorySandbox(setup_dir).run(runner)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 114, in run
return func()
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 67, in runner
_execfile(setup_script, ns)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 43, in _execfile
exec(code, globals, locals)
File "/tmp/easy_install-Lsk1pq/BTrees-4.4.1/setup.py", line 158, in <module>
File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/dist.py", line 271, in __init__
self.fetch_build_eggs(attrs['setup_requires'])
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/dist.py", line 317, in fetch_build_eggs
replace_conflicting=True,
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/pkg_resources.py", line 627, in resolve
dist = best[req.key] = env.best_match(req, ws, installer)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/pkg_resources.py", line 879, in best_match
return self.obtain(req, installer)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/pkg_resources.py", line 891, in obtain
return installer(requirement)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/dist.py", line 384, in fetch_build_egg
return cmd.easy_install(req)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 613, in easy_install
return self.install_item(spec, dist.location, tmpdir, deps)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 643, in install_item
dists = self.install_eggs(spec, download, tmpdir)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 833, in install_eggs
return self.build_and_install(setup_script, setup_base)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1055, in build_and_install
self.run_setup(setup_script, setup_base, args)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 1040, in run_setup
run_setup(setup_script, args)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 68, in run_setup
DirectorySandbox(setup_dir).run(runner)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 114, in run
return func()
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 67, in runner
_execfile(setup_script, ns)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/sandbox.py", line 43, in _execfile
exec(code, globals, locals)
File "/tmp/easy_install-Lsk1pq/BTrees-4.4.1/temp/easy_install-pAmza8/persistent-4.5.1/setup.py", line 138, in <module>
File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/dist.py", line 271, in __init__
self.fetch_build_eggs(attrs['setup_requires'])
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/setuptools/dist.py", line 317, in fetch_build_eggs
replace_conflicting=True,
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/pkg_resources.py", line 595, in resolve
requirements = list(requirements)[::-1]
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/pkg_resources.py", line 2668, in parse_requirements
"version spec")
File "/usr/local/bin/Plone/zinstance/env/lib/python2.7/site-packages/pkg_resources.py", line 2633, in scan_list
raise ValueError(msg, line, "at", line[p:])
ValueError: ('Expected version spec in', "cffi ; platform_python_implementation == 'CPython'", 'at', " ; platform_python_implementation == 'CPython'")
I have searched the web extensively and not found anything that seems relevant. If anyone could help interpret the error, it would be a great help. Thanks!