I noticed that when saving a basemap plot to a PDF file, the file is flawed when the code has drawparallels(..., linewidth=0) or drawmerdians(..., linewidth=0) in it. A minimal working example: import ...

It appears that there are some small inaccuracies when using plt.plot() for generating Pdfs with Matplotlib. In the following I have a simple example, where lines plotted with plt.plot() are not ...