def create_key(self,
group,
weight=None,
sign=0,
p=None,
prec_cap=None,
base=None,
coefficients=None):
#print group, weight, sign, p, prec_cap, base, coefficients
if sign not in (-1, 0, 1):
raise ValueError("sign must be -1, 0, 1")
if isinstance(group, (int, Integer)):
character = None
elif isinstance(group, DirichletCharacter):
character = group
if coefficients is None:
#OverconvergentDistributions can handle prec_cap and base being None
coefficients = OverconvergentDistributions(weight, p, prec_cap,
base, character)
if isinstance(group, (int, Integer)):
p = coefficients.prime()
if group % p != 0:
group *= p
group = Gamma0(group)
elif isinstance(group, DirichletCharacter):
p = coefficients.prime()
group = group.modulus()
if group % p != 0:
group *= p
group = Gamma0(group)
return (group, coefficients, sign)
