Escaping text for raw SQL?

I can't figure out if there is a way to escape text for raw SQL queries.  I can't use substitution (I think) because I'm building a query like this:

SELECT foo, bar FROM proj_words WHERE foo IN ("bat", "bug", "snip", "snap")

The list of terms for the IN operator can be quite long... I suppose I could dynamically generate this:

SELECT foo, bar FROM proj_words WHERE foo IN (%s, %s, %s, %s)

... but I was hoping for the much simpler list comprehension that MySQLdb would do:

my_list = [connection.escape(x) for x in my_list]

However, I don't see an escape function exposed in Django.

Anybody know a good way to do this?

TIA,

Nick

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