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// https://github.com/redux-observable/redux-observable/issues/62

// simple
const myCoordinator = actions$ =>
  actions$.ofType('MY_COOL_ACTION')
    .flatMap(action =>
      Observable.concat(
        // Fire 2 actions, one after the other
        Observable.of(someCoolAction),
        Observable.of(someOtherAction)

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import importlib
module = importlib.import_module('module', 'package')

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Source

Shortcuts to improve your bash & zsh productivity

So, you hate using a terminal? That might be, because you use the arrow keys to navigate character by character through a long command just to change a paramater at the other end of the line, right? Here's a list of my most-used bash & zsh shortcuts, that will definitely boost your productivity and will help you to improve your command line experience.

Shortcut	Action
CTRL + A	Move to the beginning of the line

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# https://stackoverflow.com/questions/36382508/packages-from-conda-env-not-found-in-jupyer-notebook/36395096#36395096

# Here are two possible solutions:

# You can register a new kernel based on your my-venv environment. The kernel will start from the my-venv environment and thus sees all its packages.

source activate my-venv
pip install ipykernel
ipython kernel install --name my-venv

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# Instruct the interpreter to create a network request and create an object representing the request state. This can be done using the urllib module.

import urllib.request
import tarfile
thetarfile = "http://file.tar.gz"
ftpstream = urllib.request.urlopen(thetarfile)
thetarfile = tarfile.open(fileobj=ftpstream, mode="r|gz")
thetarfile.extractall()

# The ftpstream object is a file-like that represents the connection to the ftp server. Then the tarfile module can access this stream. Since we do not pass the filename, we have to specify the compression in the mode parameter.

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# opening a new tab

self.driver = webdriver.Firefox()
self.driver.find_element_by_tag_name('body').send_keys(Keys.COMMAND + 't') 

# this is the solution for MAC OSX. In other cases you can use the standard Keys.CONTROL + 't'

# opening a new webdriver

driver = webdriver.Firefox() #1st window

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# rotate
ffmpeg -i input.mp4 -map_metadata 0 -c copy -metadata:s:v rotate="180" output.mp4

# extract subs from mp4
# https://superuser.com/questions/393762/how-to-extract-subtitles-from-mp4-and-mkv-movies
ffmpeg -i video.mp4 subtitle.srt

# convert audio (using vbr)
ffmpeg -i input.mkv -c:a libopus -b:a 256k -vbr 1 -af "channelmap=channel_layout=5.1" output.mkv

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// ignores hyperapp:
// import {h} from "hyperapp"
{
  "rules":{
    "no-unused-vars": [
      "error",
      {
        "varsIgnorePattern": "h"
      }
    ]

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import { Observable } from "rxjs/Observable"
import "rxjs/add/observable/dom/ajax"
import "rxjs/add/observable/from"
import "rxjs/add/operator/map"
import "rxjs/add/operator/reduce"
import "rxjs/add/operator/concatAll"
import Cookie from "js-cookie"

const responses = []
const request$ = (method, url, payload) => Observable

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# you can skip this first one if it is not already excluded by prior patterns
!application/

application/*
!application/language/

application/language/*
!application/language/gr/