[issue15443] datetime module has no support for nanoseconds

[Tim Peters]

Tim Peters added the comment:

Yup, it's definitely more than 8 bytes.  In addition to the comments you quoted, an in-memory datetime object also has a full Python object header, a member to cache the hash code, and a byte devoted to saying whether or not a tzinfo member is present.

Guessing Guido was actually thinking about the pickle size - but that's 10 bytes (for a "naive" datetime object).

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<http://bugs.python.org/issue15443>
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