Python 2.7 Broken

Latest commit broke python 2.7 compatibility over string formatting 😦

python2.7 get-pip.py
Traceback (most recent call last):
    File "get-pip.py", line 24226, in <module>
        main()
    File "get-pip.py", line 199, in main
        bootstrap(tmpdir=tmpdir)
    File "get-pip.py", line 82, in bootstrap
        from pip._internal.cli.main import main as pip_entry_point
    File "/tmp/tmpO8Gfeg/pip.zip/pip/_internal/cli/main.py", line 60
        sys.stderr.write(f"ERROR: {exc}")
        ^

SyntaxError: invalid syntax

[pradyunsg]

Please use https://bootstrap.pypa.io/2.7/get-pip.py.

[pradyunsg]

https://github.com/pypa/get-pip/commit/b44c5248c6916cbfa650e419fc8fb9ed39dd6a44 was the commit that provided a helpful message to users when this was migrated. That was reverted after a grace period.