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我使用PIP刚刚安装了一个Python包:如何导入已安装的Python模块?
$ sudo pip install py_vollib
Password:
Collecting py_vollib
Downloading py_vollib-1.0.1.tar.gz
Collecting py_lets_be_rational (from py_vollib)
Downloading py_lets_be_rational-1.0.1.tar.gz
Requirement already satisfied: simplejson in /Library/Python/2.7/site-packages (from py_vollib)
Requirement already satisfied: numpy in /Library/Python/2.7/site-packages (from py_vollib)
Collecting pandas (from py_vollib)
Downloading pandas-0.20.3-cp27-cp27m-macosx_10_6_intel.macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl (15.0MB)
100% |████████████████████████████████| 15.1MB 54kB/s
Requirement already satisfied: scipy in /Library/Python/2.7/site-packages (from py_vollib)
Requirement already satisfied: pytz>=2011k in /Library/Python/2.7/site-packages (from pandas->py_vollib)
Requirement already satisfied: python-dateutil in /Library/Python/2.7/site-packages (from pandas->py_vollib)
Requirement already satisfied: six>=1.5 in /Library/Python/2.7/site-packages (from python-dateutil->pandas->py_vollib)
Installing collected packages: py-lets-be-rational, pandas, py-vollib
Running setup.py install for py-lets-be-rational ... done
Running setup.py install for py-vollib ... done
Successfully installed pandas-0.20.3 py-lets-be-rational-1.0.1 py-vollib-1.0.1
,我已经验证它的正确安装:
,但我不能在Python导入:
$ python
Python 2.7.13 (default, Jul 20 2017, 18:14:09)
[GCC 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.42)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import py_vollib
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ImportError: No module named py_vollib
有人知道我在做什么错吗?
[编辑]
我已经签出help('modules')
,这也说明了py_vollib
包:
你有你的机器上安装了多个蟒蛇?有可能首先出现在你的PATH中的'pip'与你的PATH中第一个出现的Python不同。我会比较'pip --version','哪个pip'和'哪个python'的输出,并确保它们都指向相同的位置。另外,请查看您的Python的site-packages目录,并确保有一个py_vollib目录。 –
@GabeHackebeil - 我看了一下,但是即使检查python帮助('modules')输出'py_vollib'也在那里(请参阅编辑的问题)。所以这应该告诉我,它可以在我使用的Python中使用吗? – kramer65