python3 TypeError：“函数”对象不可迭代
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/22633530/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
python3 TypeError: 'function' object is not iterable
提问by Droid
What change is required in the source code?
源代码需要什么改动？
def Update():
print('\n')
print("Update")
cmd = os.system('xterm -e apt-get update')
print("Finish update")
def AptUpdate():
print('\n')
print("Update system? {Y/N}")
print("Y or y")
print("N or n")
code = input("Command > ")
if code == 'y' or code == 'Y':
for i in Update():
return Update
elif code == 'n' or code == 'N':
return
else:
print("Warning!")
AptUpdate()
exception:
Traceback (most recent call last):
File "pybash.py", line 110, in
AptUpdate()
File "pybash.py", line 102, in AptUpdate
for i in Update:
TypeError: 'function' object is not iterable
采纳答案by user3460822
What the traceback error is pointing out is the misuse of for statement:
回溯错误指出的是 for 语句的误用：
for i in Updt():
for i in Updt():
forin python 3 is as follows: "Python's for statement iterates over the items of any sequence (a list or a string), in the order that they appear in the sequence." (source: python 3.3 documentation, section 4: More control structures Python 3
for在 python 3 中如下：“Python 的 for 语句迭代任何序列（列表或字符串）的项目，按照它们在序列中出现的顺序。” （来源：python 3.3 文档，第 4 节：更多控制结构Python 3
Since a function is neither a list nor a string, you can't use the format:
由于函数既不是列表也不是字符串，因此您不能使用以下格式：
for [variable] in [function]():
for [variable] in [function]():
As far as what needs to be fixed, it depends on what those two functions are supposed to accomplish individually.
至于需要修复什么，这取决于这两个功能应该单独完成什么。
