是否有一种方法可以检查python中变量的类型是否为字符串,例如:
isinstance(x,int);
对于整数值?
是否有一种方法可以检查python中变量的类型是否为字符串,例如:
isinstance(x,int);
对于整数值?
当前回答
>>> thing = 'foo'
>>> type(thing).__name__ == 'str' or type(thing).__name__ == 'unicode'
True
其他回答
如果你不想依赖于外部库,这适用于Python 2.7+和Python 3 (http://ideone.com/uB4Kdc):
# your code goes here
s = ["test"];
#s = "test";
isString = False;
if(isinstance(s, str)):
isString = True;
try:
if(isinstance(s, basestring)):
isString = True;
except NameError:
pass;
if(isString):
print("String");
else:
print("Not String");
我是这样做的:
if type(x) == type(str()):
a = '1000' # also tested for 'abc100', 'a100bc', '100abc'
isinstance(a, str) or isinstance(a, unicode)
返回True
type(a) in [str, unicode]
返回True
我知道这是一个老话题,但作为谷歌上的第一个,鉴于我对任何一个答案都不满意,我将把这个留在这里供将来参考:
six是一个Python 2和3兼容性库,已经涵盖了这个问题。然后你可以这样做:
import six
if isinstance(value, six.string_types):
pass # It's a string !!
检查代码,如下所示:
import sys
PY3 = sys.version_info[0] == 3
if PY3:
string_types = str,
else:
string_types = basestring,
你可以:
var = 1
if type(var) == int:
print('your variable is an integer')
or:
var2 = 'this is variable #2'
if type(var2) == str:
print('your variable is a string')
else:
print('your variable IS NOT a string')
希望这能有所帮助!