Memory Leak Repro

cassandra_leaks.py

import resource
import gc
from guppy import hpy


def print_heap(hp):
    h = hp.heap()
    strs = []
    strs.extend(str(h).split('\n')[1:-1])
    for i in range(10):
        h = h.more
        if not h:
            break
        strs.extend(str(h).split('\n')[1:-1])

    del h
    print '\n'.join(strs)


def main():
    hp = hpy()
    from cassandra.io.libevreactor import LibevConnection
    connection = LibevConnection.factory()
    connection.close()
    hp.setrelheap()
    for i in xrange(100):
        connection = LibevConnection.factory()
        connection.close()
        gc.collect()
        print_heap(hp)
        print resource.getrusage(resource.RUSAGE_SELF).ru_maxrss

if __name__ == "__main__":
    main()

I have some problem, when I use this code.
ImportError: The C extension needed to use libev was not found. This probably means that you didn't have the required build dependencies when installing the driver. See http://datastax.github.io/python-driver/installation.html#c-extensions for instructions on installing build dependencies and building the C extension.

what should I do if I have no root?