python - Jupyter 上的排序错误

Question

以下代码在我的解释器上运行良好

a = [5, 1, 4, 3]
b = sorted(a)

为什么当我从 Jupiter 运行它时它会给我这个错误：

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-71-4a5766271a85> in <module>()
----> 1 b = sorted(a)

TypeError: 'list' object is not callable

版本：

Server Information:
You are using IPython notebook.

The version of the notebook server is 3.2.0-8b0eef4 and is running on:
Python 2.7.10 |Anaconda 2.3.0 (64-bit)| (default, May 28 2015, 16:44:52) [MSC v.1500 64 bit (AMD64)]

Current Kernel Information:
Python 2.7.10 |Anaconda 2.3.0 (64-bit)| (default, May 28 2015, 16:44:52) [MSC v.1500 64 bit (AMD64)]
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Answer 1

确保名称sorted未被覆盖。

>>> sorted([5,4,3,2,1])
[1, 2, 3, 4, 5]
>>> sorted = []  # <--- overwritten; shadows builtin `sorted` function.
>>> sorted([5,4,3,2,1])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'list' object is not callable