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Set ownership for TLegend header in cmsstyle.py #78

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Merged
ttedeschi merged 1 commit into from
May 28, 2026
Merged

Set ownership for TLegend header in cmsstyle.py #78

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3 changes: 3 additions & 0 deletions src/cmsstyle/cmsstyle.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1316,6 +1316,9 @@ def cmsHeader(
leg.GetListOfPrimitives().AddAt(header, 0)
else:
leg.GetListOfPrimitives().AddLast(header)
# ROOT >= 6.40 no longer drops Python ownership automatically for this case.
# The entry is stored in the TLegend primitive list, so avoid Python GC deleting it.
rt.SetOwnership(header, False)


# ######## ######## ### ## ##
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