[Python3 Runtime] Release 4.10 breaks support for Python 3.5 #3650
Description
The latest 4.10 runtime release breaks support for Python 3.5.
It looks like the codebase introduces the use of f-strings, which are only available in Python 3.6 and newer. Not sure if use of f-strings is limited to the setup.py, or whether they are also widely used in the runtime.
I strongly recommend you yank the release from PyPi and re-release with a proper version constraint in your runtime/Python3/setup.py:
setup(
...
python_requires='>=3.6.0',
)Currently, any users still using Python 3.5 will have pip blindly fetch the v4.10 runtime despite it not being compatible.
pip install fails with the following:
$ python3.5 -m pip install antlr4-python3-runtime
Collecting antlr4-python3-runtime
Using cached antlr4-python3-runtime-4.10.tar.gz (116 kB)
ERROR: Command errored out with exit status 1:
command: /usr/bin/python3.5 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-4ktmdclk/antlr4-python3-runtime_a1ff11eada524b8993affbd53054989d/setup.py'"'"'; __file__='"'"'/tmp/pip-install-4ktmdclk/antlr4-python3-runtime_a1ff11eada524b8993affbd53054989d/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-pip-egg-info-vs2ia4lj
cwd: /tmp/pip-install-4ktmdclk/antlr4-python3-runtime_a1ff11eada524b8993affbd53054989d/
Complete output (6 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-install-4ktmdclk/antlr4-python3-runtime_a1ff11eada524b8993affbd53054989d/setup.py", line 18
description=f'ANTLR {v} runtime for Python 2.7.12'
^
SyntaxError: invalid syntax
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