Symbols

# -*- coding: utf-8 -*-

import os
import sys


import ccxt  # noqa: E402


def style(s, style):
   return style + s + '\033[0m'


def green(s):
   return style(s, '\033[92m')


def blue(s):
   return style(s, '\033[94m')


def yellow(s):
   return style(s, '\033[93m')


def red(s):
   return style(s, '\033[91m')


def pink(s):
   return style(s, '\033[95m')


def bold(s):
   return style(s, '\033[1m')


def underline(s):
   return style(s, '\033[4m')


def dump(*args):
   print(' '.join([str(arg) for arg in args]))


def print_supported_exchanges():
   dump('Supported exchanges:', green(', '.join(ccxt.exchanges)))


try:

   id = sys.argv[1]  # get exchange id from command line arguments

   # check if the exchange is supported by ccxt
   exchange_found = id in ccxt.exchanges

   if exchange_found:
       dump('Instantiating', green(id), 'exchange')

       # instantiate the exchange by id
       exchange = getattr(ccxt, id)({
           # 'proxy':'https://cors-anywhere.herokuapp.com/',
       })

       # load all markets from the exchange
       markets = exchange.load_markets()

       # output a list of all market symbols
       dump(green(id), 'has', len(exchange.symbols), 'symbols:', exchange.symbols)

       tuples = list(ccxt.Exchange.keysort(markets).items())

       # debug
       for (k, v) in tuples:
           print(v)

       # output a table of all markets
       dump(pink('{:<15} {:<15} {:<15} {:<15}'.format('id', 'symbol', 'base', 'quote')))

       for (k, v) in tuples:
           dump('{:<15} {:<15} {:<15} {:<15}'.format(v['id'], v['symbol'], v['base'], v['quote']))

   else:

       dump('Exchange ' + red(id) + ' not found')
       print_supported_exchanges()

except Exception as e:
   dump('[' + type(e).__name__ + ']', str(e))
   dump("Usage: python " + sys.argv[0], green('id'))
   print_supported_exchanges()