python一个列表，多个字符串，不是纯数字的，如何转换为的数字列表

Question

a=["a","12","23","b","c","2"]
转化为:
b=["a",12, 23 ,"b","c", 2]

Answer 1

def int_it(v):
    try:
        return int(v)
    except:
        return v
a=["a","12","23","b","c","2"]
b = [int_it(each) for each in a]
print b