Iteration on std.vector['char'] is broken #9632
Description
- Checked for duplicates
First reported as a problem in RDataFrame.AsNumpy on the forum.
The following code:
#!/usr/bin/env python3
import ROOT
vec = ROOT.std.vector['char'](['a','b','c'])
for _ in vec:
passproduces:
TypeError: function takes exactly 5 arguments (1 given)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/home/blue/Scratchpad/work/forum-pyroot-error/reproducer.py", line 5, in <module>
for _ in vec:
SystemError: <cppyy.CPPOverload object at 0x7f0b0348c1c0> returned a result with an exception set
Notably, sometimes it seems to run without errors.