morenoh149

class Tree:
    def __init__(self, data):
        self.left = None
        self.right = None
        self.data = data
        
    def insert(self, data):
        if self.data:
            if isinstance(self.data, int):
                if self.left is None:

morenoh149

#!/usr/bin/env python
#
# Basic example of using Python3 and IMAP to read emails in a gmail folder/label.
# Remove legacy email.header api use.
import sys
import imaplib
import getpass
import email
import datetime

morenoh149

"""
Update alternate instances of a model in the database.
"""
from app.models import Post
ids_to_update = list(Post.objects.all().values_list('id', flat=True))[1::2]
Post.objects.filter(id__in=ids_to_update).update(some_field='some value')

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$ ./k
2020.02.25 (c) shakti
 /
/
 \
$k a.k

Verb                      Adverb                 Noun           Type  System
:  set                    '  each                char  " a"        c  \l a.k
+  plus       flip        /  over/right i enc    name  ``ab        n *\d [d]

morenoh149

Intro to Smart Contract Development, Jan 2020

Agenda

1. Go through slides https://github.com/MetaMask/IPFS-Ethereum-Hackathon/blob/master/slides/01_DanFinlay_intro_to_ethereum_blockchains/DanFinlay-intro_to_ethereum.pdf
2. deploy ballot to test net
3. go over solidity language
4. deploy ico to test net
5. build webapp with truffle
6. (stretch) deploy bonding curve token https://github.com/yosriady/continuous-token

morenoh149

Introduction to Blockchain Programming, Jan 2020

Explain blockchain

Chain of blocks

• https://anders.com/blockchain/blockchain
• Hashing function
• coinbase transaction
• the ledger is all of the transactions

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// The following was translated from python.
// See https://codility.com/media/train/15-DynamicProgramming.pdf
const dynamicCoinChanging = (coins, target) => {
  let n = coins.length;
  let dp = [0];
  for (let i=0; i < target; i++) {
    dp.push(Number.POSITIVE_INFINITY);
  }

  for (let i=0; i <= n; i++) {

morenoh149

def export_h5_to_pb(path_to_h5, export_path):

    # Set the learning phase to Test since the model is already trained.
    K.set_learning_phase(0)

    # Load the Keras model
    keras_model = load_model(path_to_h5)

    # Build the Protocol Buffer SavedModel at 'export_path'
    builder = saved_model_builder.SavedModelBuilder(export_path)

morenoh149

Soldity Workshop

Prerequisites

Attendees should do the following before the event to get the most out of it. There will be a 20 minute lecture-overview at the beginning. You can do the prerequisites during the overview if you have not done so by then.

1. install node.js (lts version is recommended)
2. install git (use brew if on osx)
3. install a code editor (vscode or atom.io)

morenoh149

import re
import pprint
pp = pprint.PrettyPrinter(indent=2)

def Input():
    filename = './input.txt'
    return open(filename)

lines = Input().read().split('\n')