import resource
from scipy.stats import rv_continuous

class Rv(rv_continuous):

    def __init__(self, x):
        rv_continuous.__init__(self, a=0, b=1)
        self.x = x

    def _pdf(self, y):
        return 1


def call_rv(x):
    rv = Rv(x)
    # if the line below is commented out, memory usage stays constant
    s = rv.rvs()
    return 1

for k in range(10000):
    x = call_rv(k)
    if k%1000==0:
        print 'Memory usage: %s (kb)' % resource.getrusage(resource.RUSAGE_SELF).ru_maxrss