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我无法在 Python 2.7 或 3.3 的终端中导入小数。
这是我得到的错误:
Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 01:25:11)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import decimal
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/decimal.py", line 3849, in <module>
_numbers.Number.register(Decimal)
AttributeError: 'module' object has no attribute 'Number'
或 Python 2.7
Python 2.7.2 (default, Oct 11 2012, 20:14:37)
[GCC 4.2.1 Compatible Apple Clang 4.0 (tags/Apple/clang-418.0.60)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import decimal
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/decimal.py", line 141, in <module>
import numbers as _numbers
File "numbers.py", line 34, in <module>
assert x / y == 2.5 # true division of x by y
AssertionError
如何导入小数？