refactor: necessary refactoring of pyproject.toml

[thePromger]

• Adds requires-python tag/attributes which helps users+build_tool/pip to find minimum version supported

• Changes version constraint from exact to lowest version supported to be used

• Adding uv.lock file to be used in CI/CD or for development by some other maintainers

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Project	Deployment	Actions	Updated (UTC)
robyn	Ready	Preview, Comment	Mar 28, 2026 7:50pm

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[thePromger]

@sansyrox
i might need to update some dependencies, should i update them in this PR itself or create new one?
To update project/dev/test dependencies.

[codspeed-hq]

Merging this PR will not alter performance

✅ 189 untouched benchmarks

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_{Comparing thePromger:chng-toml (5f2bd0b) with main (3e04c65)}

[thePromger]

Did these change, because i saw in many big projects that they dont put upper bound limit for deps instead they just define lower bound limit supported, later i am able to understand the reason little bit.
If we dont pin the exact version, so pip can download the dep according to host's os+python requirements which have many advantages than pinning exact version.

[sansyrox]

@thePromger , update them here :D

[sansyrox]

let's pin uvloop

[thePromger]

can i know the reason behing it?
bcoz if we dont pin so pip will automatically do install correct version according to host pc requirements

[sansyrox]

let's pin the latest working versions

[thePromger]

bro
i dont think that we should pin them, i saw fastapi, django, pandas, polars all are have specified requirement constraint as <= not like ==.
if we pin (==) then we need to update it regularly and if we just specify minimum version supported/required then if some breaking changes come to the dependency being in used, then only we need to fix that by finding work around or just limit to previous versions before the version which has breaking changes

[thePromger]

@sansyrox
do read more about it, why codspeed performance dropped?
https://github.com/CodSpeedHQ/pytest-codspeed/releases

CodSpeed Performance Report

Merging #1232 will degrade performances by 25.45%

what i am able to understand that this 25% performance drop is due to because we unpin the exact version, which allows pip to use latest version supported by host requirements
and from pytest-codspeed==3.0.0 something they introduced new way of measuring/benchmark method known as wall time
and from that version its set by default and to use that new method, we need to do some setup/changes like using their own runners and some other requirements too

let me test some senarious in robyn's CI inside this PR itself

[thePromger]

@sansyrox
locally both codspeed-mode={instrumentation,walltime} both are working fine today, but i don't know what is the issue in CI
note: yesterday, i think when used walltime (it took high cpu usage + every test takes very much longer time) in codespaces(i received the notification from them) and when defined mode as instrumentation it worked smoothly without any lags/delays.

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