方法一：透過異常捕捉來實現邏輯方法二：呼叫hasattr方法>>> hasattr(list, "append")True>>> hasattr(list, "add")False方法三：使用dir方法objlist = dir(k)if "att" in objlist: #do some thing you need print k.attelse:pass

頂級函式hasattr可以檢視物件是否包含某某屬性，這裡的屬性包括資料屬性和方法。getattr可以獲取屬性。

如下舉例說明。

a=[1,2,3]

print("列表有count屬性:%s"%hasattr(a,"count"))

print("列表有append屬性:%s"%hasattr(a,"append"))

print("列表有shift屬性:%s"%hasattr(a,"shift"))

print("列表的count屬性是方法:%s"%hasattr(getattr(a,"count"),"__call__"))

print("列表的append屬性是方法:%s"%hasattr(getattr(a,"append"),"__call__"))

class myclass():

def __init__(self):

self.valattr=3

def method(self):

pass

mc=myclass()

print("myclass有valattr屬性:%s"%hasattr(mc,"valattr"))

print("myclass有method屬性:%s"%hasattr(mc,"method"))

print("myclass的valattr屬性是方法:%s"%hasattr(getattr(mc,"valattr"),"__call__"))

print("myclass的method屬性是方法:%s"%hasattr(getattr(mc,"method"),"__call__"))