Convert cryptocurrencies to butter

readme.md

$ ./butter.py BTC ETH LTC XRP ORE BCN SC DOGE
BTC:   11112.06
ETH:   678.30
LTC:   178.65
XRP:   2.12
ORE:   10.80
BCN:   0.00
SC:    0.02
DOGE:  0.01

butter.py

#!/usr/bin/env python
from bs4 import BeautifulSoup, element
import requests
import re
from sys import argv
from decimal import Decimal

butter_url = "https://www.akcniceny.cz/zbozi/mlecne-vyrobky/masla/"
bitgup_url = "https://bitgup.com/view_currency/"
fiat_url = "https://api.fixer.io/latest?symbols=CZK&base=USD"
butter_default_price = 30.00

def butter_price():
    result = requests.get(butter_url)
    html = BeautifulSoup(result.content, "html5lib")
    if len(html.findAll("p", {"class": "warningfail"})) > 0:
        return butter_default_price
    else:
        price = html.findAll("p", {"class": "cena"})[0]
        price = "".join([t for t in price.contents if type(t) == element.NavigableString])
        return float(price.replace(",", "."))

def usd_to_czk():
    result = requests.get(fiat_url).json()
    return float(result["rates"]["CZK"])

def crypto_price(code):
    result = requests.get(f"{bitgup_url}/{code}/")
    html = BeautifulSoup(result.content, "html5lib")
    price = html.findAll("div", {"class": "price"})[0].text
    price = re.sub(r"[\s\$]+", "", price)
    return float(price)

def crypto_to_butter(code, butter, czk):
    return crypto_price(code) * czk / butter

def butters(code):
    amount = crypto_to_butter(code, butter, czk)
    return f"{code}:{' ' * (6 - len(code))}{round(Decimal(amount), 2)}"

butter = butter_price()
czk = usd_to_czk()

if len(argv) > 1:
    for coin in argv[1:]:
        print(butters(coin))