如何让这段代码在3中运行？

请注意，我不是"foo".upper()在字符串实例级别询问。import string

try:

print("string module, upper function:")

print(string.upper)

foo = string.upper("Foo")

print("foo:%s" % (foo))

except (Exception,) as e:

raise

输出2：string module, upper function:

foo:FOO

输出3：string module, upper function:

Traceback (most recent call last):

File "dummytst223.py", line 70, in

test_string_upper()

File "dummytst223.py", line 63, in test_string_upper

print(string.upper)

AttributeError: module 'string' has no attribute 'upper'

help(string)也不是很有帮助。据我所知，剩下的唯一功能就是string.capwords。

注意：有点hacky，但这是我的短期解决方法。import string

try:

_ = string.upper

except (AttributeError,) as e:

def upper(s):

return s.upper()

string.upper = upper