pandas 如何升级 iPython 使用的软件包？
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How do I upgrade packages used by iPython?
提问by Richard
I am using iPython on OSX (on system, not inside a virtualenv) and importing pandas into a notebook. My system python is Python 2.
我在 OSX 上使用 iPython（在系统上，而不是在 virtualenv 中）并将Pandas导入到笔记本中。我的系统 python 是 Python 2。
The version of pandas visible in the notebook is 0.16.2:
笔记本中可见的pandas版本是0.16.2：
import pandas as pd
print pd.__version__
I want to use pandas 0.18. So I have quit the notebook and run:
我想使用Pandas 0.18。所以我退出了笔记本并运行：
pip install --upgrade ipython
pip install --upgrade pandas
This appeared to install ipython 4.1.2 and pandas 0.18.0, but if I run:
这似乎安装了 ipython 4.1.2 和 pandas 0.18.0，但如果我运行：
ipython --version
I see v4.0. And running my notebook still shows pandas 0.16.2.
我看到了 v4.0。运行我的笔记本仍然显示 pandas 0.16.2。
How do I upgrade my packages so that I can use pandas 0.18 inside my notebook?
如何升级我的软件包以便我可以在我的笔记本中使用 pandas 0.18？
回答by jboockmann
The ipythoncommand invokes the respective python script, which is typically stored at /usr/local/bin/ipython. The first line of this script denotes the python version to be used. In my case it is #!/usr/bin/python3.6which means that ipython is using version 3.6 of python. Use the command which ipython | xargs head -n 1to read this first line of your ipython script.
Once you know which python version ipython is using you can invoke the upgrade command. In my case, I have to execute pip3.6 install --upgrade ipythonand pip3.6 install --upgrade pandas.
该ipython命令调用相应的 python 脚本，该脚本通常存储在/usr/local/bin/ipython. 此脚本的第一行表示要使用的 Python 版本。就我而言，#!/usr/bin/python3.6这意味着 ipython 使用的是 3.6 版的 python。使用该命令which ipython | xargs head -n 1读取 ipython 脚本的第一行。一旦您知道 ipython 正在使用哪个 python 版本，您就可以调用升级命令。就我而言，我必须执行 pip3.6 install --upgrade ipython和pip3.6 install --upgrade pandas。
回答by farshad
Using the following command you can update ipython, Open cmd and type the command:
使用以下命令可以更新 ipython，打开 cmd 并键入命令：
pip install ipython --upgrade
回答by Padraic Cunningham
pipmost likely points to python3, you can sepecify what pip to use specifically:
pip最有可能指向python3，您可以指定要具体使用的 pip：
pip2 install -U ipython
pip2 install -U pandas
Another reason can be having more than one version of python2 installed so pip may well point to another that interpreter, adding which -a pipand which -a pythonwill show you what is installed.
另一个原因可能是安装了多个版本的 python2，因此 pip 很可能指向另一个解释器，添加which -a pip并which -a python显示安装的内容。
回答by mattvivier
If you're running the iPython / Jupyter notebook, Padraic's second thought is probably correct, you're probably running the python that came with Anaconda, try conda install pandas
如果您正在运行 iPython / Jupyter notebook，Padraic 的第二个想法可能是正确的，您可能正在运行 Anaconda 附带的 python，请尝试 conda install pandas
