I have no idea about the Light Table part, but the error you are showing is the one you get if you try to execute a Python 3 function call printin Python 2 (where printit is an operator with fancy syntax, not a function). Lines 175-176 of site.pythe Python 3.4 distribution look like this: (modulo leading indentation):
print("Error processing line {:d} of {}:\n".format(n+1, fullname),
file=sys.stderr)
, , Python 2, SyntaxError, =:
Python 2.7.8 (default, Jul 3 2014, 06:13:58)
[GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> print("Error processing line {:d} of {}:\n".format(n+1, fullname), file=sys.stderr)
File "<stdin>", line 1
print("Error processing line {:d} of {}:\n".format(n+1, fullname), file=sys.stderr)
^
SyntaxError: invalid syntax
Light Table Python, , - . PYTHONPATH. C:\Python34, Python 2, . OS X, Python 2 PYTHONPATH, Python 3:
noether:~ mdickinson$ export PYTHONPATH=/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/
noether:~ mdickinson$ python2.7
File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site.py", line 176
file=sys.stderr)
^
SyntaxError: invalid syntax