python动态加载py文件

import importlib
import sys
import types



# 判断是不是方法
def is_function(tup):
    """ Takes (name, object) tuple, returns True if it is a function.
    """
    name, item = tup
    return isinstance(item, types.FunctionType)

# 判断是不是类
def is_variable(tup):
    """ Takes (name, object) tuple, returns True if it is a variable.
    """
    name, item = tup
    if callable(item):
        # function or class
        return False

    if isinstance(item, types.ModuleType):
        # imported module
        return False

    if name.startswith("_"):
        # private property
        return False

    return True

def load_python_module(file_path):
	""" load python module.
	
	Args:
	    file_path: python path
	
	Returns:
	    dict: variables and functions mapping for specified python module
	
	        {
	            "variables": {},
	            "functions": {}
	        }
	
	"""
	debugtalk_module = {
	    "variables": {},
	    "functions": {}
	}
	
	sys.path.insert(0, file_path)
	module = importlib.import_module("debugtalk")
	# 修复重载bug
	importlib.reload(module)
	sys.path.pop(0)
	
	for name, item in vars(module).items():
	    if is_function((name, item)):
	        debugtalk_module["functions"][name] = item
	    elif is_variable((name, item)):
	        if isinstance(item, tuple):
	            continue
	        debugtalk_module["variables"][name] = item
	    else:
	        pass
	
	return debugtalk_module