We should not use __str__.replace()

[ffunenga]

Instead of:
out = out.replace('<<<???>>>', substition)

we should use something like [1] or

"%(tag_identifier)s is great!" % {'tag_identifier': 'docopt'}

[1] http://docs.python.org/2/library/string.html#template-strings

[keleshev]

👍

[kblomqvist]

Sure :)

[ffunenga]

Ok, I'll make a pull request in the near future!

[kblomqvist]

That would be most appreciated.

[kblomqvist]

Merged, #7