Lazy load matplotlib because importing it is slow and not core to using igrpah

igraph / python-igraph

Python interface for igraph

GNU General Public License v2.0

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Open tim-stephenson opened 8 months ago

tim-stephenson commented 8 months ago

Feature: import igraph faster. Important for startup time critical applications. Currently, on my system, igraph import takes about a second.

This should have no effect on matplotlib functionality.

tim-stephenson commented 8 months ago

I know #739 also wanted this for other reasons.