如何检查变量是否是python中的特定类？
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How to check if variable is a specific class in python?
提问by Rolando
I have a variable "myvar" that when I print out its
type(myvar)
我有一个变量“myvar”，当我打印它时
type(myvar)
the output is:
输出是：
<class 'my.object.kind'>
If I have a list of 10 variables including strings and variables of that kind.. how can I construct an if statement to check whether an object in the list "mylist" is of <type 'my.object.kind'>?
如果我有一个包含 10 个变量的列表，包括字符串和那种类型的变量..如何构造一个 if 语句来检查列表“mylist”中的对象是否属于<type 'my.object.kind'>？
采纳答案by zhangyangyu
Use isinstance, this will return true even if it is an instance of the subclass:
使用isinstance，即使它是子类的实例，这也会返回true：
if isinstance(x, my.object.kind)
Or:
或者：
type(x) == my.object.kind #3.x
If you want to test all in the list:
如果要测试列表中的所有内容：
if any(isinstance(x, my.object.kind) for x in alist)
回答by Owen
if any(map(lambda x: isinstance(x, my.object.kind), my_list_of_objects)):
print "Found one!"
回答by lazy functor
Try
尝试
if any([isinstance(x, my.object.kind) for x in mylist]):
print "found"
