Doug says It is important to not that advocating Python for Pythonââ¬â¢s sake is a trap. When you promote something for its own sake to the exclusion of better options, you are not being an advocate; you are being a preacher."
Although he goes off on a bit of a rant, he could be talking about Perl or Ruby too. Preaching is actually anti-advocacy, even if you are sincere. It's easy to discount language fanboys.
Remember, you have to know it well enough to hate it but still love it.