SyntaxError when installing ptvsd

[karthiknadig]

setup.py install output shows following errors:

byte-compiling build\bdist.win-amd64\egg\ptvsd\reraise2.py to reraise2.cpython-36.pyc
  File "build\bdist.win-amd64\egg\ptvsd\reraise2.py", line 10
    raise exc_info[0], exc_info[1], exc_info[2]
                     ^
SyntaxError: invalid syntax

and

Extracting ptvsd-4.0.0a1-py3.6.egg to c:\programdata\anaconda3\lib\site-packages
  File "c:\programdata\anaconda3\lib\site-packages\ptvsd-4.0.0a1-py3.6.egg\ptvsd\reraise2.py", line 10
    raise exc_info[0], exc_info[1], exc_info[2]
                     ^
SyntaxError: invalid syntax

[zooba]

Same as I mentioned in #2 - use pip install <path> to install from source, which should work fine.

If not, we probably need to conditionally exclude the reraise files from the setup.py based on the target version.

[karthiknadig]

'pip install ' resolved this issue