TIL Mac OS X Terminal may concatenate strings with tabs in them. Python sample code:

>>> data = ["a"] * 100
>>> print "\t".join(data)
a    a    a    a    a    a    a    a    a    a    a
>>> print "\t".join(data)
a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a
>>> print "\t".join(data)
a    a    a    a    a    a    a    a    a    a    a    a    a    a
>>> print "   ".join(data)
a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a
>>> print "   ".join(data)
a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a   a
>>> 

(The output changes as I resized my terminal window)

Even stranger:

>>> data = ["a"] * 25 + ["foobar"] * 10
>>> print "\t".join(data)
a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    a    foobar    foobar    foobar    foobar    foobar    foobar    foobar    foobar    foobar    foobar
>>> print "\t".join(data)
a    a    a    a    a    a    a    a    a    afoobar    foobar    foobar    foobar    foobar    foobar    foobar    foobar    foobar    foobar
>>>