[SciPy-user] probability tools in scipy

[Thomas Nelson]

I'm looking for a function something like:

normalcdf(lo,hi,mu,sigma)
that returns the probability that
lo < X < hi
where X is a normal random variable with mean = mu and standard deviation 
= sigma.  Is there something like this, or a tool to make something like 
this, in scipy?  I looked at the scipy.stats.distributions module, but as 
far as I can tell that seems to be more of a random number generator.  Am 
I correct about this?  does scipy have something like the functionality 
I'm looking for?

Thanks for your time,
Thomas N.