为什么我不能在我的Python shell中执行这样的代码？

Question

为什么我无法在shell中运行以下行？

>>> try:
...     x = int("a lot")
... except items["error"] as e:
...     # Same as except ValueError as e
...     print("Couldn't convert")

错误讯息：

>>> try: ... x=int("a lot") File "<stdin>", line 2 x=int("a lot")<&>
         ^ 
IndentationError: expected an indented block 

Answer 1

适合我：

>>> items = {}
>>> items["error"] = ValueError
>>> try:
...     x = int("a lot")
... except items["error"] as e:
...     print "Couldn't convert"
...
Couldn't convert

Answer 2

你的缩进是错误的。应该是：

>>> try:
...     x = int("a lot")
... except items["error"] as e:
...     print("Couldn't convert")