Setuptools 58.0.0 has removed support for 2to3 during builds, breaks demjson for Python 3.x

[techdragon]

More information here on the change is in the GitHub issue pypa/setuptools#2086 and in the setuptools ChangeLog https://setuptools.readthedocs.io/en/latest/history.html#v58-0-0

[ra-esmith]

Ok we are seeing this also. our pip install is throwing an error (which it was not a few days ago)
#11 15.16 Collecting demjson==2.2.4
#11 15.17 Downloading demjson-2.2.4.tar.gz (131 kB)
#11 15.34 ERROR: Command errored out with exit status 1:
#11 15.34 command: /usr/bin/python3 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-7wn1mnox/demjson_e132b49dfc684875bd6306977e49549d/setup.py'"'"'; file='"'"'/tmp/pip-install-7wn1mnox/demjson_e132b49dfc684875bd6306977e49549d/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(file) if os.path.exists(file) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-h7oupxn7
#11 15.34 cwd: /tmp/pip-install-7wn1mnox/demjson_e132b49dfc684875bd6306977e49549d/
#11 15.34 Complete output (1 lines):
#11 15.34 error in demjson setup command: use_2to3 is invalid.
#11 15.34 ----------------------------------------
#11 15.34 WARNING: Discarding https://files.pythonhosted.org/packages/96/67/6db789e2533158963d4af689f961b644ddd9200615b8ce92d6cad695c65a/demjson-2.2.4.tar.gz#sha256=31de2038a0fdd9c4c11f8bf3b13fe77bc2a128307f965c8d5fb4dc6d6f6beb79 (from https://pypi.org/simple/demjson/). Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
#11 15.34 ERROR: Could not find a version that satisfies the requirement demjson==2.2.4 (from versions: 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.0.1, 2.2, 2.2.1, 2.2.2, 2.2.3, 2.2.4)
#11 15.34 ERROR: No matching distribution found for demjson==2.2.4

[dmeranda]

Thanks for the notification. This project has been in a "standby" mode for many years as it was written prior to the Python standard library having any JSON API. I was not aware how much this package was still being used.

To solve this I really need to make a Python 3 only major version and discontinue support for Python 2.

[ianrocha]

Ok we are seeing this also. our pip install is throwing an error (which it was not a few days ago)
#11 15.16 Collecting demjson==2.2.4
#11 15.17 Downloading demjson-2.2.4.tar.gz (131 kB)
#11 15.34 ERROR: Command errored out with exit status 1:
#11 15.34 command: /usr/bin/python3 -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-7wn1mnox/demjson_e132b49dfc684875bd6306977e49549d/setup.py'"'"'; file='"'"'/tmp/pip-install-7wn1mnox/demjson_e132b49dfc684875bd6306977e49549d/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(file) if os.path.exists(file) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-h7oupxn7
#11 15.34 cwd: /tmp/pip-install-7wn1mnox/demjson_e132b49dfc684875bd6306977e49549d/
#11 15.34 Complete output (1 lines):
#11 15.34 error in demjson setup command: use_2to3 is invalid.
#11 15.34 ----------------------------------------
#11 15.34 WARNING: Discarding https://files.pythonhosted.org/packages/96/67/6db789e2533158963d4af689f961b644ddd9200615b8ce92d6cad695c65a/demjson-2.2.4.tar.gz#sha256=31de2038a0fdd9c4c11f8bf3b13fe77bc2a128307f965c8d5fb4dc6d6f6beb79 (from https://pypi.org/simple/demjson/). Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
#11 15.34 ERROR: Could not find a version that satisfies the requirement demjson==2.2.4 (from versions: 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.0.1, 2.2, 2.2.1, 2.2.2, 2.2.3, 2.2.4)
#11 15.34 ERROR: No matching distribution found for demjson==2.2.4

I'm having the same here :(

[techdragon]

@dmeranda As a quick fix you could do a minor version or patch release of everything as it is but with a more specific version specified for setuptools But yeah a Python3 only release would be nice.