Top Tweets for #cpython
ABI3T lets one extension module support both the standard and free-threaded builds without doubling the wheel count. Nathan Goldbaum explains the mechanics behind CPython 3.15's new ABI tag.
Watch the full talk here: https://t.co/Rab7ilrduQ
#Python #CPython #FreeThreaded
Testing the smallest inputs (start=1, start=0) shows that kind of mistake fastest.
Also: return True in __exit__ means “handled”. Still drilling that one.
#Python #CPython #100DaysOfCode
Per image:
python3 -c 'import sys,vllm;print(sys.version.split()[0],vllm.__version__)'
pgrep -af -- --trust-request-chat-template
3.14+ with user models or request templates: isolate per tenant. vLLM <0.32 /v1/responses ignored the flag.
#AISecurity #LLMSecurity #cpython
refs is wild.
The patch landed in 3.13+; 3.12 stays stuck in production for now 🦀
#CPython #AI #SandboxEscape #Security
https://t.co/Q0wZ8ZWdMy
CPython internals: exceptions.
try/except/else/finally: else runs only if no error happened, and unlike code at the end of try, it isn’t covered by the except clauses. finally runs no matter what.
#Python #CPython #100DaysOfCode
CPython internals: @property, @classmethod, @staticmethod.
These are decorators built into Python. @property replaces a method with a property object (area = property(area))
#Python #CPython #100DaysOfCode
CPython internals: @contextmanager.
You can write a context manager as a generator instead of a class. Code before yield plays __enter__, the with block runs while the generator is paused, and code after yield plays __exit__.
#Python #CPython #100DaysOfCode
CPython internals: context managers and the with statement.
with calls __enter__ when the block starts and __exit__ when it ends, whether the block finished normally or raised an error.
#Python #CPython #100DaysOfCode
Free-threaded Python removes the global lock, but the concept of attaching and detaching from the interpreter stays. Nathan Goldbaum breaks down what changes for the CPython C API and what doesn't.
Watch the full talk here: https://t.co/wOLuIoaieZ
#Python #FreeThreaded #CPython
🎤 ¡Keynote en #PyConES2026! 🐍✨
@diegor presenta "Ultreia: ¿Cuándo una idea pasa a ser Python?". Un viaje por el JIT experimental de CPython, PEPs, free-threading y gobernanza. 🧠🚀
#PyConES2026 #PyConES #PythonEspaña #CPython
@pabloGSAL Thank you to @pablogsal for supporting #PyConES2026 as a Community sponsor! 🐍✨
CPython Core Developer and a key champion for the open-source community and our conference. ⚙️
#PyConES2026 #PyConES #Python #CPython
¡Gracias a @pablogsal por apoyar la #PyConES2026 como patrocinador Community! 🐍✨
Core Developer de CPython e impulsor fundamental de la comunidad de código abierto y de nuestra conferencia. ⚙️
#PyConES2026 #PyConES #PythonEspaña #CPython
CPython developers fixed critical Python SSL vulnerabilities. Update now to resolve these Python SSL vulnerabilities and protect secure network sockets.
#Python #CPython #SSL #CVE202619445 #CVE202619553 #Cybersecurity
https://t.co/ZDnvkNBYIh
CPython internals classes, self, and class vs instance attributes.
Class attributes live once, on the class itself, shared by every instance via lookup. Instance attributes (self.x = ...) are private per object.
#Python #CPython #100DaysOfCode
CPython’da Rust zorunluluğu şimdilik rafa kalktı. Güvenlik kazanımı ile platform uyumluluğu arasında daha ölçülü bir geçiş hedefleniyor. Sizce hız mı, kontrollü ilerleme mi?
#BlockTubeTV #CPython #Rust #Python
Thank you to our first block of Day 1 #rustconf speakers! From the warm welcome to #rustconf26 via Bec Rumbul, to Jon Seager's keynote, to some great project updates from #cpython and #rustls, we covered a lot of ground already 🦀 We're headed into a short break now and will be back for breakouts after that!
Weds schedule: https://t.co/Ikro2kzyH9
Virtual info: https://t.co/n8vxGBPWXX
🎉 #PyConTW2026 Core Systems & Performance Lineup is LIVE! 🐍✨
Dive deep into Free-threaded Python, CPython JIT benchmarks, eBPF, Descriptors & contributing your first PR to CPython!
#Core #CPython #Systems #Performance #PyConTW
🐍 Python 3.15.0rc1 is out!
Proud to have contributed to CPython with changes included in the 3.15 release.
Congratulations to the @ThePSF community!
#Python #CPython #OpenSource #Python315
Python 3.14's free-threaded GC: 2–12x faster than 3.13.
Three changes made that happen:
→ Mark-alive pass
→ Software pre-fetching
→ RSS-based collection trigger
Neil Schemenauer explains each one → https://t.co/lcD5Niq4wV
#Python #CPython #FreethreadedPython
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