human
I am working on the file "Devel/V05/Frame2D_Output.ipynb".
The first task is:
File Signatures
Can you write Python program for it?
assistant
#Here is the Python program you requested.

##test:
vars(f.rawdata).keys()

@extend
class Frame2D:
    
    COLUMNS_signatures = ['NAME','PATH','SIGNATURE']
    
    def list_signatures(self):
        return [t.signature() for tn,t in vars(self.rawdata).items() if type(t) is Table]

##test:
f.list_signatures()

##test:
f.write_table('signatures','test-1',record=False)
%cat test-1.d/signatures.csv