Count self intersection for a curve Grasshopper/Python

@claire.dumont wrote:

Hi everyone,
I’m trying to find the number of occurrences of self-intersections for a curve in Grasshopper but I don’t understand why some points aren’t taken into account in my occurences list.
I used Curve|Self (CX) to find the intersections and then count() in Python. For instance, points “2”, “15” and “37” are the same, but, python find 1 occurence for point 2 and two occurences for 15 and 37 (and not 3 for the three points !).
Do you know this problem?
How do I find the self intersection of the curve and right occurences by using Grasshopper and/or Python?

Thank you

!grasshopper2|690x368](upload://kdYbAhSKx9hg44OeXHMavWAWH6E.jpeg)

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