| How
do modules work, the sequel |
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| • | C
extensions provide thin wrappers that behave as |
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| dictionaries
that store module globals |
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| • | Note
that repeated imports execute the code only once |
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| • | Beware
of circular imports |
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| # A.py # B.py |
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| import B import A |
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| y=1 print A.y |
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