Installation fails under Python 3 on Mac

[ketch]

I'm trying to install on a Mac (running OS X 10.12.5) under Python 3. Installation under Python 2 succeds, but with Python 3 I get the following output:

» pip3 install --no-cache-dir --upgrade preprocess
Collecting preprocess
  Downloading preprocess-1.1.0.zip (59kB)
    100% |████████████████████████████████| 61kB 357kB/s
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/gm/8bn6zk2d3sd3wzk60tb08y180000gn/T/pip-build-uf_gm76_/preprocess/setup.py", line 28, in <module>
        import preprocess
      File "/private/var/folders/gm/8bn6zk2d3sd3wzk60tb08y180000gn/T/pip-build-uf_gm76_/preprocess/lib/preprocess.py", line 264
        except Exception, ex:
                        ^
    SyntaxError: invalid syntax

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I also tried cloning the current master branch and installing, but I get this error:

Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/gm/8bn6zk2d3sd3wzk60tb08y180000gn/T/pip-kh4noipj-build/setup.py", line 28, in <module>
        import preprocess
      File "/private/var/folders/gm/8bn6zk2d3sd3wzk60tb08y180000gn/T/pip-kh4noipj-build/lib/preprocess.py", line 136, in <module>
        from past.builtins import cmp
    ImportError: No module named 'past'

[johannesring]

Try this one instead: https://github.com/doconce/preprocess

[ketch]

That worked; thanks! Perhaps a release from that fork should be put on PyPi?

[johannesring]

Yes, it should. Maybe you can register an issue for this?

[ketch]

I'm confused -- why open another issue when we already have this one?