chore: coerce bool tags to str

[brettlangdon]

Description

The typing for Span.set_tag requires the value to be Optional[str]. There are some callsites which depend on the implicit behavior of str() being called on the value. This behavior may and will change at any time since the method typing is requiring a str directly.

This PR updates call sites to explicitly cast boolean tags to a string to conform to the required typing of Span.set_tag.

There should be no functional change in behavior.

Testing

Risks

Additional Notes

These call sites passing bool exist because these files/methods are not being type checked, otherwise static type checking would catch them.

[cit-pr-commenter-54b7da]

Codeowners resolved as

ddtrace/contrib/internal/trace_utils.py                                 @DataDog/apm-core-python @DataDog/apm-idm-python

[pr-commenter]

Performance SLOs

Comparing candidate APMLP-941/set_tag.bool.calls (ee761e9) with baseline main (a5ff574)

🟡 Near SLO Breach (1 suite)

🟡 otelspan - 22/22

✅ add-event

Time: ✅ 40.633ms (SLO: <47.150ms 📉 -13.8%) vs baseline: +0.2%

Memory: ✅ 41.232MB (SLO: <47.000MB 📉 -12.3%) vs baseline: +5.0%

---

✅ add-metrics

Time: ✅ 234.303ms (SLO: <344.800ms 📉 -32.0%) vs baseline: -0.5%

Memory: ✅ 45.772MB (SLO: <47.500MB -3.6%) vs baseline: +4.8%

---

✅ add-tags

Time: ✅ 264.902ms (SLO: <330.000ms 📉 -19.7%) vs baseline: +0.2%

Memory: ✅ 45.707MB (SLO: <47.500MB -3.8%) vs baseline: +5.0%

---

✅ get-context

Time: ✅ 83.728ms (SLO: <92.350ms -9.3%) vs baseline: ~same

Memory: ✅ 41.583MB (SLO: <46.500MB 📉 -10.6%) vs baseline: +4.6%

---

✅ is-recording

Time: ✅ 39.087ms (SLO: <44.500ms 📉 -12.2%) vs baseline: +0.1%

Memory: ✅ 41.215MB (SLO: <47.500MB 📉 -13.2%) vs baseline: +4.9%

---

✅ record-exception

Time: ✅ 61.124ms (SLO: <67.650ms -9.6%) vs baseline: -0.1%

Memory: ✅ 41.830MB (SLO: <47.000MB 📉 -11.0%) vs baseline: +5.1%

---

✅ set-status

Time: ✅ 44.928ms (SLO: <50.400ms 📉 -10.9%) vs baseline: ~same

Memory: ✅ 41.132MB (SLO: <47.000MB 📉 -12.5%) vs baseline: +5.0%

---

✅ start

Time: ✅ 40.109ms (SLO: <44.500ms -9.9%) vs baseline: +4.4%

Memory: ✅ 41.103MB (SLO: <47.000MB 📉 -12.5%) vs baseline: +4.6%

---

✅ start-finish

Time: ✅ 90.016ms (SLO: <92.000ms -2.2%) vs baseline: -0.5%

Memory: ✅ 38.653MB (SLO: <46.500MB 📉 -16.9%) vs baseline: +4.7%

---

✅ start-finish-telemetry

Time: ✅ 91.505ms (SLO: <93.000ms 🟡 -1.6%) vs baseline: -0.7%

Memory: ✅ 38.771MB (SLO: <46.500MB 📉 -16.6%) vs baseline: +5.0%

---

✅ update-name

Time: ✅ 40.224ms (SLO: <45.150ms 📉 -10.9%) vs baseline: +0.1%

Memory: ✅ 41.280MB (SLO: <47.000MB 📉 -12.2%) vs baseline: +4.8%

✅ All Tests Passing (1 suite)

✅ otelsdkspan - 24/24

✅ add-event

Time: ✅ 40.489ms (SLO: <42.000ms -3.6%) vs baseline: +0.2%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +5.0%

---

✅ add-link

Time: ✅ 36.438ms (SLO: <38.550ms -5.5%) vs baseline: ~same

Memory: ✅ 39.046MB (SLO: <40.750MB -4.2%) vs baseline: +4.9%

---

✅ add-metrics

Time: ✅ 219.370ms (SLO: <232.000ms -5.4%) vs baseline: -0.5%

Memory: ✅ 38.948MB (SLO: <40.750MB -4.4%) vs baseline: +4.6%

---

✅ add-tags

Time: ✅ 211.668ms (SLO: <221.600ms -4.5%) vs baseline: +0.2%

Memory: ✅ 39.086MB (SLO: <40.750MB -4.1%) vs baseline: +5.0%

---

✅ get-context

Time: ✅ 29.201ms (SLO: <31.300ms -6.7%) vs baseline: +0.4%

Memory: ✅ 39.105MB (SLO: <40.750MB -4.0%) vs baseline: +5.1%

---

✅ is-recording

Time: ✅ 29.084ms (SLO: <31.000ms -6.2%) vs baseline: ~same

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +4.9%

---

✅ record-exception

Time: ✅ 63.104ms (SLO: <65.850ms -4.2%) vs baseline: -0.4%

Memory: ✅ 39.027MB (SLO: <40.750MB -4.2%) vs baseline: +4.9%

---

✅ set-status

Time: ✅ 31.938ms (SLO: <34.150ms -6.5%) vs baseline: -0.5%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +5.0%

---

✅ start

Time: ✅ 29.227ms (SLO: <30.150ms -3.1%) vs baseline: +1.3%

Memory: ✅ 38.987MB (SLO: <40.750MB -4.3%) vs baseline: +4.8%

---

✅ start-finish

Time: ✅ 33.822ms (SLO: <35.350ms -4.3%) vs baseline: -0.3%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +5.1%

---

✅ start-finish-telemetry

Time: ✅ 34.030ms (SLO: <35.450ms -4.0%) vs baseline: +0.3%

Memory: ✅ 39.007MB (SLO: <40.750MB -4.3%) vs baseline: +4.9%

---

✅ update-name

Time: ✅ 31.021ms (SLO: <33.400ms -7.1%) vs baseline: -0.1%

Memory: ✅ 39.066MB (SLO: <40.750MB -4.1%) vs baseline: +4.5%

[datadog-datadog-prod-us1]

✅ Tests

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: ee761e9 | Docs | Datadog PR Page | Was this helpful? React with 👍/👎 or give us feedback!}

[brettlangdon]

/merge

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2026-04-16 15:04:50 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in main is approximately 60m (p90).

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