如何在Python中以编程方式调用函数,同时以编程方式指定模块?

import foo
method_to_call = getattr(foo, 'bar')
result = method_to_call()

因为模块名是硬编码的,我不能使用它

module = __import__('foo')
func = getattr(module, 'bar')
func()

因为模块是嵌套的。

我试过这个

customer = 'jci'
module = __import__('customer.{customer_name}.gt'.format(customer_name=customer_name)) # AttributeError: module 'customer' has no attribute 'get_gt'
#module = __import__('customer.{customer_name}'.format(customer_name=customer_name), fromlist=['gt']) # AttributeError: module 'customer.jci' has no attribute 'get_gt'
#module = __import__('customer.{customer_name}.gt'.format(customer_name=customer_name), fromlist=[]) # AttributeError: module 'customer' has no attribute 'get_gt'
func = getattr(module, 'get_gt')
gt = func()    

get_gt() 里面有一个函数吗 gt.py 文件内 customer/jci 目录每个目录都有空的 __init__.py 在…内

以下硬编码代码有效:

import customer.jci.gt as g
gt = g.get_gt()