I am running Ubuntu 21.04. I have cloned sagemath's source with git and run ./configure folowed by make. It terminates with errors. The first error is in cysignals-1.10.3. I can't attach the log files here since I do not have enough points. so I hope these are the relevant things. from logs/pkgs/cysignals-1.10.3.log:
Processing /home/brett/Projects/SAGE/sage/local/var/tmp/sage/build/cysignals-1.10.3/src
Created temporary directory: /tmp/pip-req-build-reb5uglo
DEPRECATION: A future pip version will change local packages to be built in-place without first copying to a temporary directory. We recommend you use --use-feature=in-tree-build to test your packages with this new behavior before it becomes the default.
pip 21.3 will remove support for this functionality. You can find discussion regarding this at https://github.com/pypa/pip/issues/7555.
Added file:///home/brett/Projects/SAGE/sage/local/var/tmp/sage/build/cysignals-1.10.3/src to build tracker '/tmp/pip-req-tracker-31wllir1'
Running setup.py (path:/tmp/pip-req-build-reb5uglo/setup.py) egg_info for package from file:///home/brett/Projects/SAGE/sage/local/var/tmp/sage/build/cysignals-1.10.3/src
Created temporary directory: /tmp/pip-pip-egg-info-rmc2dd38
Running command python setup.py egg_info
WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7fdd4693a340>, 'Connection to 192.0.2.0 timed out. (connect timeout=15)')': /simple/cython/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7fdd4693aa30>, 'Connection to 192.0.2.0 timed out. (connect timeout=15)')': /simple/cython/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7fdd4693ab50>, 'Connection to 192.0.2.0 timed out. (connect timeout=15)')': /simple/cython/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7fdd4693ac10>, 'Connection to 192.0.2.0 timed out. (connect timeout=15)')': /simple/cython/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ConnectTimeoutError(<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7fdd4693acd0>, 'Connection to 192.0.2.0 timed out. (connect timeout=15)')': /simple/cython/
ERROR: Could not find a version that satisfies the requirement Cython>=0.28 (from versions: none)
ERROR: No matching distribution found for Cython>=0.28
Traceback (most recent call last):
File "/home/brett/Projects/SAGE/sage/local/lib/python3.9/site-packages/setuptools/installer.py", line 75, in fetch_build_egg
subprocess.check_call(cmd)
File "/usr/lib/python3.9/subprocess.py", line 373, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['/home/brett/Projects/SAGE/sage/local/bin/python3', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/tmp/tmpbhnfluj1', '--quiet', 'Cython>=0.28']' returned non-zero exit status 1.
One thing I noticed is that it seems to be looking for cython version >= 0.28. ./configure says
cython-0.29.21: standard, will be installed as an SPKG
but python3 -m pip install cython reports that python v0.29 is installed:
Requirement already satisfied: cython in /home/brett/.local/lib/python3.9/site-packages (0.29.24)
