setup.py 文件源码

def initialize_options(self):
        build_ext.initialize_options(self)
        self.direct_access = True
        self.large_objects = True
        self.default_vars = True
        self.escaping_funcs = pg_version[0] >= 9
        if pg_version < (9, 0):
            warnings.warn("PygreSQL does not support this PostgreSQL version.")