  We present a software to simulate the propagation of positive streamers in
dielectric liquids. Such liquids are commonly used for electric insulation of
high-power equipment. We simulate electrical breakdown in a needle-plane
geometry, where the needle and the extremities of the streamer are modeled by
hyperboloids, which are used to calculate the electric field in the liquid. If
the field is sufficiently high, electrons released from anions in the liquid
can turn into electron avalanches, and the streamer propagates if an avalanche
meets the Townsend-Meek criterion. The software is written entirely in Python
and released under an MIT license. We also present a set of model simulations
demonstrating the capability and versatility of the software.
