Traceback (most recent call last):


 "freqtrade/main.py", line 288, in <module>

main()


 "freqtrade/main.py", line 267, in main

init(_CONF)


 "freqtrade/main.py", line 226, in init

exchange.init(config)


 "/home/tt/freqtrade/freqtrade/exchange/__init__.py", line 52, in init

_API = exchange_class(exchange_config)


 "/home/tt/freqtrade/freqtrade/exchange/bittrex.py", line 36, in __init__

calls_per_second=5,
TypeError: __init__() got an unexpected keyword argument 'calls_per_second'

Traceback (most recent call last):


 "scripts/sentence/gridsearch.py", line 65, in <module>

json.dump(gridsearch.cv_results_, outfile, indent=2)


 "/root/miniconda/lib/python3.5/json/__init__.py", line 178, in dump

for chunk in iterable:


 "/root/miniconda/lib/python3.5/json/encoder.py", line 429, in _iterencode

yield from _iterencode_dict(o, _current_indent_level)


 "/root/miniconda/lib/python3.5/json/encoder.py", line 403, in _iterencode_dict

yield from chunks


 "/root/miniconda/lib/python3.5/json/encoder.py", line 436, in _iterencode

o = _default(o)


 "/root/miniconda/lib/python3.5/json/encoder.py", line 179, in default

raise TypeError(repr(o) + " is not JSON serializable")
TypeError: array([1, 2], dtype=int32) is not JSON serializable
