ipython

How to manage and communicate with multiple IPython/Jupyter kernels from a Python script?

本小妞迷上赌 提交于 2019-12-19 02:59:07
问题 I want to mimic the functionality of a notebook server, and instead coordinate the creation/management of different IPython/Jupyter kernels from a central body of logic (i.e. my own Python script). For example, I want to: Define an abstract command e.g. "add(x, y)" Communicate the abstract command to multiple kernels e.g. an IPython kernel and Scala kernel Have each kernel execute the command however they wish Return the result from each kernel to the central body of logic Can anyone point me

ipython notebook的安装和使用;pip和easy_install.exe的区别;几个库Scikit-Learn、NumPy、SciPy、Matplotlib的用途

心已入冬 提交于 2019-12-19 00:20:46
1、ipython notebook是什么? 已经成为用Python做教学、计算、科研的一个重要工具,很多示例都是用.ipynb文件。利用浏览器做IDE,做结果的展示台等。   第一步,安装python   第二步,pip install --timeout=100 --proxy=10.30.21.6:808 -i https://pypi.tuna.tsinghua.edu.cn/simple -U spyder PyQt5 tensorflow opencv-python opencv-contrib-python   这两步完成基本应用   第三步,是针对ipython notebook的     在命令行里,easy_install.exe pyzmq     在命令行里,easy_install.exe jinja2     在命令行里,easy_install.exe tornado     运行jupyter notebook报错,No module named: notebook。在命令行里,pip install notebook     OK! 2、 pip和easy_install.exe的区别 : easy_install和pip都是用来下载安装Python一个公共资源库PyPI 的相关资源包的,提供了在线一键安装模块的傻瓜方便方式,pip是easy

Pandas: How to reference and print multiple dataframes as HTML tables

不想你离开。 提交于 2019-12-18 19:08:55
问题 I'm trying split out individual dataframes from a groupby to print them as pandas HTML tables. I need to reference and render them individually as tables so I can screenshot them for a presentation. This is my current code: import pandas as pd df = pd.DataFrame( {'area': [5, 42, 20, 20, 43, 78, 89, 30, 46, 78], 'cost': [52300, 52000, 25000, 61600, 43000, 23400, 52300, 62000, 62000, 73000], 'grade': [1, 3, 2, 1, 2, 2, 2, 4, 1, 2], 'size': [1045, 957, 1099, 1400, 1592, 1006, 987, 849, 973, 1005

Change resolution of imshow in ipython

五迷三道 提交于 2019-12-18 19:06:25
问题 I am using ipython, with a code that looks like this: image = zeros(MAX_X, MAX_Y) # do something complicated to get the pixel values... # pixel values are now in [0, 1]. imshow(image) However, the resulting image always has the same resolution, around (250x250). I thought that the image's dimensions would be (MAX_X x MAX_Y), but that is seemingly not the case. How can I make ipython give me an image with a greater resolution? 回答1: The height and width of the displayed image on the screen is

Python real time varying heat map plotting

牧云@^-^@ 提交于 2019-12-18 18:11:33
问题 I have a 2D grid 50*50. For each location I have an intensity value(i.e data is like (x,y,intensity) for each of those 50*50 locations). I would like to visualize the data as a heatmap. The twist is that every second the intensity will change(for most of the locations), which means I will need to re-draw the heatmap every second. I am wondering what is the best library/approach to handle this kind of real-time varing heatmap. 回答1: This really depends on how you get your data, but: import

Python real time varying heat map plotting

时间秒杀一切 提交于 2019-12-18 18:10:11
问题 I have a 2D grid 50*50. For each location I have an intensity value(i.e data is like (x,y,intensity) for each of those 50*50 locations). I would like to visualize the data as a heatmap. The twist is that every second the intensity will change(for most of the locations), which means I will need to re-draw the heatmap every second. I am wondering what is the best library/approach to handle this kind of real-time varing heatmap. 回答1: This really depends on how you get your data, but: import

Python的super()如何与多重继承一起使用?

喜你入骨 提交于 2019-12-18 17:32:32
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 我在面向对象的Python编程中非常陌生,尤其是在涉及多重继承时,我很难理解 super() 函数(新样式类)。 例如,如果您有类似的东西: class First(object): def __init__(self): print "first" class Second(object): def __init__(self): print "second" class Third(First, Second): def __init__(self): super(Third, self).__init__() print "that's it" 我不明白的是: Third() 类会继承两个构造函数方法吗? 如果是,那么哪个将与super()一起运行,为什么? 如果要运行另一台呢? 我知道这与Python方法解析顺序( MRO )有关。 #1楼 您的代码和其他答案都是错误的。 他们缺少合作子类正常工作所需的前两个类中的 super() 调用。 这是代码的固定版本: class First(object): def __init__(self): super(First, self).__init__() print("first") class Second(object): def __init__

IPython 4 shell does not work with Sublime REPL

眉间皱痕 提交于 2019-12-18 16:46:16
问题 I am having problems with running the IPython shell from the Sublime REPL package. Here is what I get: C:\Anaconda\lib\site-packages\IPython\config.py:13: ShimWarning: The`IPython.config` package has been deprecated. You should import from traitlets.config instead. "You should import from traitlets.config instead.", ShimWarning) C:\Anaconda\lib\site-packages\IPython\terminal\console.py:13: ShimWarning: The `IPython.terminal.console` package has been deprecated. You should import from jupyter

IPython notebook and rmagic/rpy2: cannot find module ri2py (OSX 10.8.5, python 2.7, R 3.1)

邮差的信 提交于 2019-12-18 13:37:10
问题 I'm trying to use the rmagic extension for the IPython notebook, using Python 2.7.6 via Enthought Canopy. When I try the following example: import numpy as np import pylab X = np.array([0,1,2,3,4]) Y = np.array([3,5,4,6,7]) pylab.scatter(X, Y) %Rpush X Y %R lm(Y~X)$coef I get an error: AttributeError Traceback (most recent call last) <ipython-input-7-96dff2c70ba0> in <module>() 1 get_ipython().magic(u'Rpush X Y') ----> 2 get_ipython().magic(u'R lm(Y~X)$coef') … /Users/hrob/Library/Enthought

Clearing the screen in IPython

爷,独闯天下 提交于 2019-12-18 11:45:45
问题 Is there a command in IPython to clear the screen? EDIT: As @Saher mentions below, I can clean the screen using import os; os.system('CLS') , but is there a way to do this without having to import all of os ? 回答1: To clear the screen on Windows, use !CLS . On Unix-like systems, use !clear . A shell command is executed by the operating system if prepended by an exclamation mark. See http://ipython.readthedocs.io/en/stable/interactive/reference.html#system-shell-access. Note that commands