Secret scalar must be greater than 0 and less than..

[hrishikeshio]

In [94]: pk
Out[94]: <coincurve.keys.PrivateKey instance at 0x109cc2998>

In [95]: privatekey_to_address(pk)
---------------------------------------------------------------------------
ValueError                                Traceback (most recent call last)
<ipython-input-95-a6cecae842d3> in <module>()
----> 1 privatekey_to_address(pk)

<ipython-input-91-3fca11b6c95d> in privatekey_to_address(private_key_bin)
    120 
    121 def privatekey_to_address(private_key_bin):
--> 122     private_key = PrivateKey(private_key_bin)
    123     pubkey = private_key.public_key.format(compressed=False)
    124     return publickey_to_address(pubkey)

/Users/hhuilgolkar/raid/lib/python2.7/site-packages/coincurve/keys.pyc in __init__(self, secret, context)
     20 class PrivateKey:
     21     def __init__(self, secret=None, context=GLOBAL_CONTEXT):
---> 22         self.secret = (validate_secret(secret) if secret is not None
     23                        else get_valid_secret())
     24         self.context = context

/Users/hhuilgolkar/raid/lib/python2.7/site-packages/coincurve/utils.pyc in validate_secret(secret)
    105     if not ZERO < secret < GROUP_ORDER:
    106         raise ValueError('Secret scalar must be greater than 0 and less than '
--> 107                          '{}.'.format(GROUP_ORDER_INT))
    108     return pad_scalar(secret)
    109 

ValueError: Secret scalar must be greater than 0 and less than 115792089237316195423570985008687907852837564279074904382605163141518161494337.

In [100]: pk.to_int()
Out[100]: 72314643180786136016222690850571465731842288350546105134113403345693409491713L

[ofek]

Coincurve does not have the same API as secp256k1-py. Therefore, your privatekey_to_address is ill-defined. Change it to:

def privatekey_to_address(private_key):
    pubkey = private_key.public_key.format(compressed=False)
    return publickey_to_address(pubkey)