AddColumnSignal

Called when a column is added to a class, with arguments (cls, connection, column_name, column_definition, changeSchema, post_funcs). This is called after the column has been added, and is called for each column after class creation.

post_funcs are called with (cls, so_column_obj)


Methods

f __format__(...) ...

default object formatter

f __init__(...) ...

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

f __sizeof__(...) ...

__sizeof__() -> size of object in memory, in bytes

f __subclasshook__(...) ...

Abstract classes can override this to customize issubclass().

This is invoked early on by abc.ABCMeta.__subclasscheck__(). It should return True, False or NotImplemented. If it returns NotImplemented, the normal algorithm is used. Otherwise, it overrides the normal algorithm (and the outcome is cached).

See the source for more information.