sabarasaba

git rm -r --cached node_modules
git commit -m 'Remove the now ignored directory node_modules'
git push origin master

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

douglasmiranda

# This is a really old post, in the comments (and stackoverflow too) you'll find better solutions.

def find(key, dictionary):
    for k, v in dictionary.iteritems():
        if k == key:
            yield v
        elif isinstance(v, dict):
            for result in find(key, v):
                yield result
        elif isinstance(v, list):

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

ProjectCleverWeb

Normal Text

Some Links:
Link 1 | Link 2 | Link 3

rochacbruno

The use of __main__.py to create executables

myprojectfolder/
    |_ __main__.py
    |_ __init__.py

Being __main__.py:

print("Hello")

keepitsimple

# Dependencies to make "headless" chrome/selenium work:
sudo apt-get -y install xvfb gtk2-engines-pixbuf
sudo apt-get -y install xfonts-cyrillic xfonts-100dpi xfonts-75dpi xfonts-base xfonts-scalable

echo "Starting X virtual framebuffer (Xvfb) in background..."
Xvfb -ac :99 -screen 0 1280x1024x16 &
export DISPLAY=:99

mindplace

1. Make sure git is tracking your project locally

Do you need a refresher on git? Go through Codecademy's git course.

1. Using your terminal/command line, get inside the folder where your project files are kept: cd /path/to/my/codebase. → You cannot do this simply by opening the folder normally, you must do this with the command line/terminal.
   → Do you need a refresher on using your command line/terminal? I've compiled my favorite resources here.

2. Check if git is already initialized: git status

iangow

The following is what I needed to do to get Python going on my M1 Mac mini to the extent that I could run code from Chapter 2 of Introduction to Machine Learning with Python.

wget https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-MacOSX-arm64.sh
bash Miniforge3-MacOSX-arm64.sh
conda install scipy matplotlib ipython scikit-learn pandas pillow
conda install -c conda-forge jupyterlab   

kayabaNerve

The Dero Protocol

The protocol uses a pair of rings, one for the senders, one for the receivers, represented as a singular ring. With each transfer, a list of ElGamal ciphertexts is provided for all accounts within the joint ring. This ElGamal ciphertext is formed as r * G, (r * K) + (a * G), where r is some randomness, K is the key for the account the ciphertext is for, and a is the amount.

The Dero Wallet Protocol

Dero offers an 'encrypted message' with every transaction. Even if the user does not explicitly provide one, a message will exist (either with internally provided values or left empty). For the only defined type of message, the message is encoded as the index of the sender, a CBOR-encoded object, and zero-padding. The message is encrypted with the Chacha20 stream created by a key of H(H(r * K) || K) where r is some randomness and K is the key for the account the ciphertext is for.

The Issue