Last release of mypy that supports python3.4 is broken

[hackaugusto]

I totally understand if no package would be release just to make pip install mypy work. Just in case this issue is found by somebody else, the blog documents that support was dropped at 0.700, pip install mypy==0.670 is the last working release of mypy for py3.4

Bug Report

As the title says

To Reproduce

cd /tmp
python3.4 -m venv test
source ./test/bin/activate
pip install mypy # this installs mypy-0.720
mypy # raises the exception bellow

Traceback (most recent call last):
  File "/tmp/test/bin/mypy", line 7, in <module>
    from mypy.__main__ import console_entry
  File "/tmp/test/lib64/python3.4/site-packages/mypy/__main__.py", line 4, in <module>
    from mypy.main import main
  File "/tmp/test/lib64/python3.4/site-packages/mypy/main.py", line 12, in <module>
    from mypy import build
  File "/tmp/test/lib64/python3.4/site-packages/mypy/build.py", line 56, in <module>
    from mypy.plugins.default import DefaultPlugin
  File "/tmp/test/lib64/python3.4/site-packages/mypy/plugins/default.py", line 266
    return UnionType.make_simplified_union([*value_types, ctx.arg_types[1][0]])
                                                       ^
SyntaxError: can use starred expression only as assignment target

Expected Behavior

It would just be nice to be able to install mypy on an old venv.

[astrojuanlu]

Duplicate: #7221

[JelleZijlstra]

Python 3.4's end of life was in March of 2019. We're not going to fix it.