python: change printing of class [duplicate]

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How to create a custom string representation for a class object? (5 answers)

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Is it possible in python to change what is printed for classes. I know that if we provide __str__ __unicode__ methods, we can change the way instances of a class are printed. But i want to do this for a class

Eg:

class A(object):
    def __str__(self):
        return 'hello'

a = A()
print a

will print hello. Is it possible to change the behaviour of print A which by default prints something like

Update: I guess i might as well explain the context. I am trying to create MySQL queries and i have classes representing tables. Each of these table-classes have a class variable containing the table name. So what i want to do is to be able to pass the Class as parameter to cursor.execute and have the tablenames substituted in the query.

задан Aran-Fey 14 September 2018 в 08:55

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python: change printing of class [duplicate]

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