UnboundLocalError: local variable 'fullfilename' referenced before assignment

Question

I\'m facing an error as:

UnboundLocalError: local variable \'fullfilename\' referenced before assignment

Code block:

caminho_pa         


        

Answer 1

This error message...

UnboundLocalError: local variable 'fullfilename' referenced before assignment

...implies that you have referenced the variable fullfilename even before it was assigned any value.

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In your code block:

for arquivo in arquivos:
    if arquivo.endswith(".zip"):
        fullfilename = os.path.join(caminho_path, arquivo)

the variable fullfilename is assigned a value only when the condition arquivo.endswith(".zip") is true. Else the variable fullfilename remains unassigned.

In one of such cases when the variable was left unassigned, you have tried to reference it at a later part in your code as:

with ZipFile(fullfilename, 'r') as zipObj:

Even when the variable fullfilename was still unassigned. Hence you see the error.