如何在python中使用click只传递一个参数？

Question

我是新使用click package。我有一个有两个参数的函数，我只想通过click传递其中一个参数，参数i在语句if中传递。你知道吗

fig = plt.figure()
ax1 = fig.add_subplot(1,1,1)

@click.command()
@click.argument('filename')
def plot_graph(i, filename):
    ...

if __name__ == '__main__':
    graph_animated = animation.FuncAnimation(fig, plot_graph, interval=1000)

谢谢你！你知道吗

Answer 1

只需将相关代码包装在“command”函数中，并在filename变量上使用闭包：

import click
import matplotlib.animation as animation
import matplotlib.pyplot as plt


@click.command()
@click.argument('filename')
def main(filename):
    fig = plt.figure()
    ax1 = fig.add_subplot(1,1,1)

    def plot_graph(i):
        # Closure over `filename` here.
        # Alternatively you can use additional kwarg `filename=filename`.

    graph_animated = animation.FuncAnimation(fig, plot_graph, interval=1000)
    plt.show()


if __name__ == '__main__':
    main()