get-poetry-1.0.5-pep394-compliance

sed 's/^\(BIN = """#!\).*$/\1{SHEBANG}/;s/u(BIN)/u(BIN.replace("{SHEBANG}", sys.executable))/'

The install script for poetry (currently at v1.0.5) is not PEP394 compliant, which causes problems on various systems where running python scripts with the shebang #!/usr/bin/env python fails or is undesirable. There are a number of open issues and PRs in the poetry github repo addressing this, and I'm sure they'll get it sorted eventually.

In the meantime, on systems where #!/usr/bin/env python would fail or use python2: (I'm looking at you, Debian buster)
Use this command to install poetry using python3 on a such a system:

curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | eval $(curl -sSL https://git.io/JvXVq) | python3

Security note: only do this kind of thing if you trust the author implicitly. A very sane thing to do would be:

curl -sSL https://git.io/JvXVq >fixit

Then examine fixit and satisfy yourself that it isn't doing anything evil, followed by:

chmod +x fixit
curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | ./fixit | python3

Compatibility note: This assumes your system is unix-like and has sed on the path.

Thanks for this.