• OS: Fedora 27
• Programming Language version: Python 3.X
• CCXT version: 1.15.18
• Exchange: Bittrex
• Method: Fetch Ticker

CODE:

#!/usr/bin/python3
import ccxt

bittrex = ccxt.bittrex()

print(bittrex.fetch_ticker('BTC/USD'))

RESPONSE:

Error: bad operand type for unary -: 'dict'

What should I do? Thanks!