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coding style - How to break a line of chained methods in Python?

I have a line of the following code (don't blame for naming conventions, they are not mine):

subkeyword = Session.query(
    Subkeyword.subkeyword_id, Subkeyword.subkeyword_word
).filter_by(
    subkeyword_company_id=self.e_company_id
).filter_by(
    subkeyword_word=subkeyword_word
).filter_by(
    subkeyword_active=True
).one()

I don't like how it looks like (not too readable) but I don't have any better idea to limit lines to 79 characters in this situation. Is there a better way of breaking it (preferably without backslashes)?

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1 Answer

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by (71.8m points)

You could use additional parentheses:

subkeyword = (
    Session.query(Subkeyword.subkeyword_id, Subkeyword.subkeyword_word)
    .filter_by(subkeyword_company_id=self.e_company_id)
    .filter_by(subkeyword_word=subkeyword_word)
    .filter_by(subkeyword_active=True)
    .one()
)

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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