Repository navigation
Object of type 'Float' has no len() #562
Description
We recently updated to tomlkit 0.15.0 from 0.14.0 and we have stumbled across an odd bug that can be reproduced with this snippet of code:
import tomlkit
import torch
arr = tomlkit.loads("""
a = [1.0, 2.0, 3.0]
""")
print(arr)
print(type(arr['a']))
print(type(arr['a'][0]))
t = torch.tensor(arr['a'], dtype=torch.float32)Output with tomlkit==0.15.0
{'a': [1.0, 2.0, 3.0]}
<class 'tomlkit.items.Array'>
<class 'tomlkit.items.Float'>
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
7
8 print(arr)
9 print(type(arr['a']))
10 print(type(arr['a'][0]))
---> 11 t = torch.tensor(arr['a'], dtype=torch.float32)
TypeError: object of type 'Float' has no len()
Output with tomlkit==0.14.0
{'a': [1.0, 2.0, 3.0]}
<class 'tomlkit.items.Array'>
<class 'tomlkit.items.Float'>
The expectation is that we should be able to read an array of floats from the .toml file and treat it as we would a python list of floats.
Activity
drewoldag commentedon Jul 16, 2026
I see that the PR for the fix has already been merged - thanks for the quick turn around! Is there an estimated date for when the fix will be included in a versioned release?