Unable to install black with pip and python 2.7

Howdy! Sorry you're having trouble. To expedite your experience,

provide some basics for me:



Operating system: macOS High Sierra 10.13.4

Python version: 2.7.10/3.7.0

*Black* version: N/A

Does also happen on master:



If i use pip i get this:

```

pip install black

Collecting black

Could not find a version that satisfies the requirement black (from versions: )

No matching distribution found for black

```



So i tried installing from Github and got this:



```

pip install "git+https://github.com/ambv/black.git"

Collecting git+https://github.com/ambv/black.git

  Cloning https://github.com/ambv/black.git to /private/var/folders/d1/xvn4kf7501xbnpp3grb11w6rhdspfc/T/pip-req-build-SvhG55

  Installing build dependencies ... done

    Complete output from command python setup.py egg_info:

    Traceback (most recent call last):

      File "<string>", line 1, in <module>

      File "/private/var/folders/d1/xvn4kf7501xbnpp3grb11w6rhdspfc/T/pip-req-build-SvhG55/setup.py", line 13

        def get_long_description() -> str:

                                   ^

    SyntaxError: invalid syntax



    ----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/d1/xvn4kf7501xbnpp3grb11w6rhdspfc/T/pip-req-build-SvhG55/

```



Is it possible because i have two python version pip is trying to install black as a Python2 package and it therefore fails? How can i solve this problem?

[
  {
    "category": "misspecification",
    "rule": "signature.unresolvable_declared_requirement",
    "source": "failure_signature",
    "excerpt": "Could not find a version that satisfies the requirement black (from versions: )"
  }
]