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Add Access SQLite Result Values By Name With Row Factory as a Python TIL
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@@ -10,7 +10,7 @@ working across different projects via [VisualMode](https://www.visualmode.dev/).
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For a steady stream of TILs, [sign up for my newsletter](https://visualmode.kit.com/newsletter).
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_1835 TILs and counting..._
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_1836 TILs and counting..._
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See some of the other learning resources I work on:
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@@ -1068,6 +1068,7 @@ If you've learned something here, support my efforts writing daily TILs by
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- [Access Instance Variables](python/access-instance-variables.md)
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- [Access Most Recent Return Value In REPL](python/access-most-recent-return-value-in-repl.md)
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- [Access SQLite Result Values By Name With Row Factory](python/access-sqlite-result-values-by-name-with-row-factory.md)
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- [Access Variables Outside Loop Scope](python/access-variables-outside-loop-scope.md)
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- [Argument Defaults Are Evaluated When Function Is Defined](python/argument-defaults-are-evaluated-when-function-is-defined.md)
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- [Assert Is Only A Development Check](python/assert-is-only-a-development-check.md)
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@@ -0,0 +1,35 @@
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# Access SQLite Result Values By Name With Row Factory
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The default shape of a result from executing a row-returning statement with
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`sqlite3` is a tuple. Whose values can be accessed positionally.
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```python
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>>> res = conn.execute("select * from projects;")
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>>> res.fetchone()
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(1, 'py-vmt', '2026-07-25 14:53:44', '2026-07-25 14:53:44')
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```
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If I want something a bit nicer, I can enable [_Row Factory_
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results](https://docs.python.org/3/library/sqlite3.html#how-to-create-and-use-row-factories)
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for my connection. The values on a _row_ can be accessed by name as well as
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positionally.
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```python
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>>> conn.row_factory = sqlite3.Row
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>>> res = conn.execute("select * from projects;")
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>>> res.fetchone()
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<sqlite3.Row object at 0x1019e3c40>
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>>> r1 = _
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>>> r1
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<sqlite3.Row object at 0x1019e3c40>
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>>> r1["name"]
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'py-vmt'
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>>> r1["id"]
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1
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>>> r1[1]
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'py-vmt'
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```
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[I used Row Factory on a project
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recently](https://github.com/jbranchaud/py-vmt/pull/9/changes) and I think it
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made for an improvement in the readability of the code.
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