python判断变量是否为int、字符串、列表、元组、字典等方法

可以用isinstance方法判断

#!/usr/bin/env python
a = 1
b = [1,2,3,4]
c = (1,2,3,4)
d = {'a':1,'b':2,'c':3}
e = "abc"
if isinstance(a,int):
    print "a is int"
else:
    print "a is not int"
if isinstance(b,list):
    print "b is list"
else:
    print "b is not list"
if isinstance(c,tuple):
    print "c is tuple"
else:
    print "c is not tuple"
if isinstance(d,dict):
    print "d is dict"
else:
    print "d is not dict"
if isinstance(e,str):
    print "d is str"
else:
    print "d is not str"
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