Latest vectoBT encounter 'AttributeError: module 'vectoBT' has no attribute 'YFData''

[tiger2014]

I got the latest version(my python 3.9.13)

(vectoBT) PS C:\Develope\Stocks\VectorBT> pip install --upgrade vectorbt
Requirement already satisfied: vectorbt in c:\develope\stocks\vectorbt\vectobt\lib\site-packages (0.27.2)

but the code
price = vbt.YFData.download('BTC-USD').get('Close')
still enconter errro:
AttributeError: module 'vectoBT' has no attribute 'YFData'

[polakowo]

It says module 'vectoBT', but it must be "vectorbt" and not "vectoBT". Make sure you import the package correctly, and that you don't have directories or Python files with the name "vectorbt" inside your working directory.

[tiger2014]

Thank you for pointing out my mistake. It is indeed resolved. But why wasn't there an error for import vectobt as vbt?