Writing profiles #1531
Description
From #1000 I undestand writing profile is supported.
import uproot
import hist
f = uproot.recreate("test.root")
h1 = hist.Hist.new.Reg(100, 0, 10).Mean()
f['h1'] = h1gives
File ~/micromamba/envs/mamba-python3.11/lib/python3.11/site-packages/uproot/writing/writable.py:984, in WritableDirectory.__setitem__(self, where, what)
982 if self._file.sink.closed:
983 raise ValueError("cannot write data to a closed file")
--> 984 self.update({where: what})
File ~/micromamba/envs/mamba-python3.11/lib/python3.11/site-packages/uproot/writing/writable.py:1576, in WritableDirectory.update(self, pairs, **more_pairs)
1573 for item in path:
1574 directory = directory[item]
-> 1576 uproot.writing.identify.add_to_directory(v, name, directory, streamers)
1578 self._file._cascading.streamers.update_streamers(self._file.sink, streamers)
File ~/micromamba/envs/mamba-python3.11/lib/python3.11/site-packages/uproot/writing/identify.py:169, in add_to_directory(obj, name, directory, streamers)
166 tree.extend(data)
168 else:
--> 169 writable = to_writable(obj)
171 for rawstreamer in writable.class_rawstreamers:
172 if isinstance(rawstreamer, tuple):
File ~/micromamba/envs/mamba-python3.11/lib/python3.11/site-packages/uproot/writing/identify.py:362, in to_writable(obj)
360 if obj.kind == "MEAN":
361 if hasattr(obj, "storage_type"):
--> 362 if "fSumw2" in obj.metadata.keys():
363 fSumw2 = obj.metadata["fSumw2"]
364 else:
AttributeError: 'NoneType' object has no attribute 'keys'
uproot.__version__ 5.6.6'
hist.__version__ 2.9.0