DavidBuchanan314

"""
This pure-python ChaCha20 implementation reaches 32MiB/sec on my machine (M1 Pro)

otoh, cryptography.io's impl reaches about 1700MiB/s. Way faster, of course, but only about 50x faster.

This is code is a proof-of-concept and should not be used in a security context.
"""

CONST_MAGIC = b"expand 32-byte k"
CONST_WORDS = [int.from_bytes(CONST_MAGIC[i:i+4], "little") for i in range(0, 16, 4)]

coolreader18

class E(BaseException):
    def __new__(cls, *args, **kwargs):
        return cls
def a(): yield
a().throw(E)

gregopet

jooq.fetchOne("select * from film limit 1");

// type safety for fields
jooq.fetchOne("select * from film limit 1").get(FILM.TITLE);
jooq.fetchOne("select title || ' ' || description from film limit 1").get(0, String.class);

// parameters
jooq
  .fetchOne("select title || ' ' || description from film where title like ? limit 1", "DINOSAUR%")
  .get(0, String.class);

y0ngb1n

Docker Hub 镜像加速器

国内从 Docker Hub 拉取镜像有时会遇到困难，此时可以配置镜像加速器。

Dockerized 实践 https://github.com/y0ngb1n/dockerized

Docker daemon 配置代理

参考 Docker daemon 配置代理

Lukasa

import os
import socket
import struct

# These constants map to constants in the Linux kernel. This is a crappy
# way to get at them, but it'll do for now.
RTMGRP_LINK = 1

NLMSG_NOOP = 1
NLMSG_ERROR = 2

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

rxaviers

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