Lib throws for the call `net_peerCount`

[mezrin]

In my project, I use testrpc as the environment for my unit tests.
And ehjsonrpc throws for the call net_peerCount with this:

File "/../src/venv/lib/python3.5/site-packages/ethjsonrpc/client.py", line 175, in net_peerCount
    return hex_to_dec(self._call('net_peerCount'))
  File "/../src/venv/lib/python3.5/site-packages/ethjsonrpc/utils.py", line 10, in hex_to_dec
    return int(x, 16)
TypeError: int() can't convert non-string with explicit base

I found a quick fix
https://github.com/ConsenSys/ethjsonrpc/blob/master/ethjsonrpc/utils.py#L8

def hex_to_dec(x):
    if type(x) is int:
        return x
    return int(x, 16)

[reiven]

@mezrin you are using testrpc instead of geth or parity, right?

looks like a problem in testrpc with the response of that method, using geth or parity the anwser is correct

Using parity:

>>> from ethjsonrpc import ParityEthJsonRpc
>>> c = ParityEthJsonRpc('localhost')
>>> c.net_peerCount()
0

Using geth:

>>> from ethjsonrpc import EthJsonRpc
>>> c= EthJsonRpc('localhost')
>>> c.net_peerCount()
1