Optimize json.dump() to reduce multiple I/O operations and improve performance #129770
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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ghost
closed this by deleting the head repository
2 participants
This PR optimizes
json.dump()by reducing multiple I/O operations and replacing them with a single efficient write.🔹 Problem:
json.dump(x, f)was significantly slower thanf.write(json.dumps(x))due to multiple write calls.🔹 Solution:
🔹 Performance Benchmark:
json.dump(): SLOW due to multiple writes.json.dump(): 🚀 2-3x Faster by reducing I/O calls.✅ All tests pass, and this change preserves all functionality.