sqlite3.register_converter(typename, callable) Registers a callable to convert a bytestring from the database into a custom
dbm.whichdb(filename) This function attempts to guess which of the several simple database modules available — dbm.gnu
exception dbm.dumb.error Raised on dbm.dumb-specific errors, such as I/O errors.
pickle.load(file, *, fix_imports=True, encoding="ASCII", errors="strict") Read a pickled object representation from the open
object.__reduce__() The interface is currently defined as follows. The __reduce__() method takes no argument and
dump(obj) Write a pickled representation of obj to the open file object given in the constructor.
copyreg.constructor(object) Declares object to be a valid constructor. If object is not callable (and hence
keys() This method returns a list of column names. Immediately after a query, it is the first member of each tuple in Cursor
object.__setstate__(state) Upon unpickling, if the class defines __setstate__(), it is called with the unpickled
class sqlite3.Row A Row instance serves as a highly optimized row_factory for Connection
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