pandas 熊猫缺少必需的依赖项 ['numpy']
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Pandas Missing required dependencies ['numpy']
提问by sdksmkfnajnf
I am currently following a beginners introduction to machine learning.
While entering in the command:
import pandas as pdin the python shell in terminal, I get an error reading:
我目前正在关注机器学习的初学者介绍。在输入命令时：
import pandas as pd在终端的 python shell 中，我收到一条错误消息：
ImportError: Missing required dependencies ['numpy'].
导入错误：缺少必需的依赖项 ['numpy']。
I already looked at the other similar question, tried that solution, but still received the same error.
我已经看过另一个类似的问题，尝试过该解决方案，但仍然收到相同的错误。
采纳答案by Peter van Heusden
Looks like you might be running on a Mac and perhaps using the default system python. For whatever reason you don't have a complete installation. you have pandasbut not numpy. I'm not sure which packages the tutorial you are following uses, but I would recommend installing the Anaconda python distributionas it includes pandas, all its dependencies and much more, including the scikit-learnpackage often used for machine learning.
看起来您可能在 Mac 上运行，并且可能使用默认系统 python。无论出于何种原因，您都没有完整的安装。你有pandas但没有numpy。我不确定您所关注的教程使用了哪些软件包，但我建议安装Anaconda python 发行版，因为它包括pandas、所有依赖项等等，包括scikit-learn经常用于机器学习的软件包。
If you want to know more about installing a Python environment for machine learning on a Mac, there is a good tutorialon machinelearningmastery.com.
如果你想了解更多关于在 Mac 上安装机器学习 Python 环境的信息，machinelearningmastery.com 上有一个很好的教程。
回答by Brad Solomon
This doesn't have anything to do with incompatibility. As @Peter mentioned, you simply don't have NumPy and should install through Anaconda. Here is the code within pandas that is giving you the error:
这与不兼容没有任何关系。正如@Peter 提到的，您根本没有 NumPy，应该通过 Anaconda 安装。这是Pandas中给您错误的代码：
# Let users know if they're missing any of our hard dependencies
hard_dependencies = ("numpy", "pytz", "dateutil")
missing_dependencies = []
for dependency in hard_dependencies:
try:
__import__(dependency)
except ImportError as e:
missing_dependencies.append(dependency)
if missing_dependencies:
raise ImportError("Missing required dependencies {0}".format(missing_dependencies))
del hard_dependencies, dependency, missing_dependencies
Notice there is nothing here about version.
请注意，这里没有关于版本的任何内容。
回答by mrGreenBrown
I had a same problem. I don't know what is the cause of the problem, but it seems to deal with how numpy is installed. You can try the following:
我有同样的问题。我不知道问题的原因是什么，但它似乎与 numpy 的安装方式有关。您可以尝试以下操作：
- Install pandas
- Uninstall numpy
- Download numpy whl for your needs from here
- Install numpy from downloaded whl
- 安装Pandas
- 卸载 numpy
- 从这里下载满足您需求的 numpy whl
- 从下载的 whl 安装 numpy
That worked for me!
那对我有用！
回答by Peter
I get the same error message with my Anaconda installation when I forget to activate the environment:
当我忘记激活环境时，我的 Anaconda 安装收到相同的错误消息：
Testcode: import_pandas.py:
测试代码：import_pandas.py：
import pandas
print('Pandas import succeeded!')
Run import_pandas.py with ImportError:
使用 ImportError 运行 import_pandas.py：
Microsoft Windows [Version 10.0.16299.1146]
(c) 2017 Microsoft Corporation. All rights reserved.
C:\Users\peter\demo>python import_pandas.py
Traceback (most recent call last):
File "import_pandas.py", line 1, in <module>
import pandas
File "C:\Users\peter\AppData\Local\Anaconda3\lib\site-packages\pandas\__init__.py", line 19, in <module>
"Missing required dependencies {0}".format(missing_dependencies))
ImportError: Missing required dependencies ['numpy']
However, after activating conda everything works perfectly fine:
但是，激活 conda 后一切正常：
C:\Users\peter\demo>activate
C:\Users\peter\demo>conda.bat activate
(base) C:\Users\peter\demo>python import_pandas.py
Pandas import succeeded!
