coincap_proj1.py

import os
import json
import requests
from datetime import datetime
from prettytable import PrettyTable
from colorama import Fore, Back, Style

convert = 'USD'

listings_url = 'https://api.coinmarketcap.com/v2/listings/?convert=' + convert
url_end = '?structure=array&convert=' + convert

request = requests.get(listings_url)
results = request.json()

data = results['data']

ticker_url_pairs = {}
for currency in data:
    symbol = currency['symbol']
    url = currency['id']
    ticker_url_pairs[symbol] = url

print()
print("MY PORTFOLIO")
print()

portfolio_value = 0.00
last_updated = 0

table = PrettyTable(['Asset', 'Amount Owned', 'USD Value', 'Price', '1h', '24h', '7d'])

with open("portfolio.txt", "r") as inp:
    for line in inp:
        ticker, amount = line.split()
        ticker = ticker.upper()
        ticker_url = 'https://api.coinmarketcap.com/v2/ticker/' + str(ticker_url_pairs[ticker]) + '/' + url_end

        request = requests.get(ticker_url)
        results = request.json()

        currency = results['data'][0]
        rank = currency['rank']
        name = currency['name']
        last_updated = currency['last_updated']
        symbol = currency['symbol']
        quotes = currency['quotes'][convert]
        hour_change = quotes['percent_change_1h']
        day_change = quotes['percent_change_24h']
        week_change = quotes['percent_change_7d']
        price = quotes['price']

        value = float(price) * float(amount)

        if hour_change > 0:
            hour_change = Back.GREEN + str(hour_change) + '%' + Style.RESET_ALL
        else:
            hour_change = Back.RED + str(hour_change) + '%' + Style.RESET_ALL

        if day_change > 0:
            day_change = Back.GREEN + str(day_change) + '%' + Style.RESET_ALL
        else:
            day_change = Back.RED + str(day_change) + '%' + Style.RESET_ALL

        if week_change > 0:
            week_change = Back.GREEN + str(week_change) + '%' + Style.RESET_ALL
        else:
            week_change = Back.RED + str(week_change) + '%' + Style.RESET_ALL

        portfolio_value += value

        value_string = '{:,}'.format(round(value,2))

        table.add_row([name + ' (' + symbol + ')',
                   amount,
                   '$' + value_string,
                   '$' + str(price),
                   str(hour_change),
                   str(day_change),
                   str(week_change)])

print(table)
print()

portfolio_value_string = '{:,}'.format(round(portfolio_value,2))
last_updated_string = datetime.fromtimestamp(last_updated).strftime('%B %d, %Y at %I:%M%p')
print('Total Portfolio Value: ' + Back.GREEN + '$' + portfolio_value_string + Style.RESET_ALL)
print()
print('API Results Last Updated on ' + last_updated_string)
print()