print() with no newline

[ElChino]

In this snippet:
  import sys
  PY3 = (sys.version_info[0] >= 3)

  def print_no_nl (s):
    if PY3:
      print (s, end="")
    else:
      print (s),

I'm getting a syntax error in Python2. Python3 is fine.
How can I make this Py2+3 compatible?
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