Moelf

Numpy is absurd

HN Discussion

I always gripe about Python not having useful (i.e. performant and with adoption) built-in array type and Numpy doesn't distinguish "vector of vector" from "matrix", but this still surprised me.

in is actually intersect?

It seems that Numpy uses intersect logic to check a in b:

coolreader18

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

luw2007

package log

import (
	"bytes"
	"path"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/lestrrat/go-file-rotatelogs"
	"github.com/pkg/errors"

marwei

Kafka 0.11.0.0 (Confluent 3.3.0) added support to manipulate offsets for a consumer group via cli kafka-consumer-groups command.

1. List the topics to which the group is subscribed

kafka-consumer-groups --bootstrap-server <kafkahost:port> --group <group_id> --describe

Note the values under "CURRENT-OFFSET" and "LOG-END-OFFSET". "CURRENT-OFFSET" is the offset where this consumer group is currently at in each of the partitions.

2. Reset the consumer offset for a topic (preview)

ascendbruce

Use macOS-style shortcuts in Windows / keyboard mappings using a Mac keyboard on Windows

ℹ️ There is a newer alternative project that does similar things and more, check it out at https://github.com/stevenilsen123/mac-keyboard-behavior-in-windows

Make Windows PC's shortcut act like macOS (Mac OS X) (using AutoHotkey (ahk) script)

With this AutoHotKey script, you can use most macOS style shortcuts (eg, cmd+c, cmd+v, ...) on Windows with a standard PC keyboard.

How does it work

v5tech

使用ffmpeg合并MP4文件

ffmpeg -i "Apache Sqoop Tutorial Part 1.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate1.ts
ffmpeg -i "Apache Sqoop Tutorial Part 2.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate2.ts
ffmpeg -i "Apache Sqoop Tutorial Part 3.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate3.ts
ffmpeg -i "Apache Sqoop Tutorial Part 4.mp4" -c copy -bsf:v h264_mp4toannexb -f mpegts intermediate4.ts
ffmpeg -i "concat:intermediate1.ts|intermediate2.ts|intermediate3.ts|intermediate4.ts" -c copy -bsf:a aac_adtstoasc "Apache Sqoop Tutorial.mp4"

railwaycat

;; Keybonds
(global-set-key [(hyper a)] 'mark-whole-buffer)
(global-set-key [(hyper v)] 'yank)
(global-set-key [(hyper c)] 'kill-ring-save)
(global-set-key [(hyper s)] 'save-buffer)
(global-set-key [(hyper l)] 'goto-line)
(global-set-key [(hyper w)]
                (lambda () (interactive) (delete-window)))
(global-set-key [(hyper z)] 'undo)