我正在使用Python 2和click编写工具,该工具在硬件中读/写寄存器。我有两个函数接受完全相同的选项。不同之处在于它们处理输入并将输出直接输出到不同的设备。
这是我到目前为止所做的:
@cli.command()
@click.option('--r0', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
@click.option('--r1', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
@click.option('--r2', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
def mydevice1(r0, r1, r2):
# Handle inputs for device 1
click.echo('myfunc1')
@cli.command()
@click.option('--r0', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
@click.option('--r1', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
@click.option('--r2', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
def mydevice2(r0, r1, r2):
# Handle inputs for device 2
click.echo('myfunc2')
两个函数都将以相同的方式处理输入,唯一的区别是它们将处理信息传递给不同的设备。换句话说,我想拥有的是
@click.option('--r0', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
@click.option('--r1', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
@click.option('--r2', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
def handle_common_options(r0, r1, r2):
# Handle common options
pass
@cli.command()
def mydevice1():
handle_common_options()
# pass processed options to device 1
@cli.command()
def mydevice2():
handle_common_options()
# pass processed options to device 2
这可能吗?
答案 0 :(得分:1)
确定。
@decorator
def f():
pass
装置
def f():
pass
f = decorator(f)
这样:
decorator0 = cli.command()
decorator1 = click.option('--r0', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
decorator2 = click.option('--r1', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
decorator3 = click.option('--r2', type=click.IntRange(-2, 0xffffffff, clamp=False), default=-2)
common_decorator = lambda f: decorator0(decorator1(decorator2(decorator3(f))))
@common_decorator
def mydevice1(r0, r1, r2):
click.echo('myfunc1')
@common_decorator
def mydevice2(r0, r1, r2):
click.echo('myfunc2')
没有lambda:
def common_decorator(f):
return decorator0(decorator1(decorator2(decorator3(f))))