Both setuptools and wheels evolution continue, and since some days ago we found another incompatibility when trying to upgrade these packages using the default-installed versions in Focal.
We already knew that we had to upgrade setuptools if we want to properly handle the installation of Jinja2. But now a new problem appears: the setuptools upgrade will try to install a wheels version that old setuptools cannot handle:
Collecting setuptools>=40.8.0
Downloading setuptools-65.5.1.tar.gz (2.6 MB)
Getting requirements to build wheel: started
Getting requirements to build wheel: finished with status 'done'
Installing backend dependencies: started
Installing backend dependencies: finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /root/parts/charm/build/staging-venv/bin/python3 /root/parts/charm/build/staging-venv/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-29b38ltx/normal --no-warn-script-location --no-binary :all: --only-binary :none: -i https://pypi.org/simple -- wheel
cwd: None
Complete output (60 lines):
Collecting wheel
Downloading wheel-0.38.2.tar.gz (66 kB)
ERROR: Command errored out with exit status 1:
command: /root/parts/charm/build/staging-venv/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-v89hlh_n/wheel/setup.py'"'"'; __file__='"'"'/tmp/pip-install-v89hlh_n/wheel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-v89hlh_n/wheel/pip-egg-info
cwd: /tmp/pip-install-v89hlh_n/wheel/
Complete output (52 lines):
WARNING: The wheel package is not available.
running egg_info
creating /tmp/pip-install-v89hlh_n/wheel/pip-egg-info/wheel.egg-info
module = __import__(self.module_name, fromlist=['__name__'], level=0)
ModuleNotFoundError: No module named 'setuptools.command.build'
We’re still investigating this, but one way out of this loop is to pre-upgrade setuptools and wheels to the versions before this problem arose:
parts:
charm:
charm-python-packages:
- wheel==0.37.1
- setuptools==45.2.0