varargs not supported by numba

[danielcsaba]

numba currently does not support variable or default arguments for functions with the @jit decorator.

As a result we are not able to use the rand method without parentheses.

Specifically, in the Distributions.jl package the D.rand command generates a random variable from distribution D and the D.rand(n) command generates an array of independent random variables of size n from distribution D.

In the Distributions.py package in order to generate one random draw from distribution D we need to call D.rand(1) instead of D.rand. Generating an array works in the same way, D.rand(n).