Commit 3000edd8 authored by Snehal M Shekatkar's avatar Snehal M Shekatkar

Fix pen_width bug in cairo_draw

When user passes pen_width value only for either vertex or edge, an
error is thrown since inside min_lw, lw may be None. This bug fixes
that by assigning value lw=0.1 whenever it is 0.1
parent d9f9b513
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