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I often like to start my ipython session from where I last left off - similar to saving a firefox browsing session. IPython already automatically saves your input history so that you can look up commands in your history, but it doesn't save your variables. Here are the steps to save the state of your variables on exit and have them loaded on startup:

1. Add the save_user_variables.py script below to your ipython folder (by default $HOME/.ipython). This script takes care of saving user variables on exit.

2. Add this line to your profile's ipython startup script (e.g., $HOME/.ipython/profile_default/startup/startup.py):
   get_ipython().ex("import save_user_variables;del save_user_variables")

3. In your ipython profile config file (by default $HOME/.ipython/profile_default/ipython_config.py) find the following line:
   # c.StoreMagics.autorestore = False
   Uncomment it and set it to true. This automatically reloads stored variables on startup. Alternatively you can use reload the last session manually us

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"""
Using matplotlib for manually creating animations. Works similar to FuncAnimation. Manual animation is a bit simpler than using the animations API in general since it is still capable of handling some events (like window resizing) automatically.
"""

import matplotlib.pyplot as plt
import numpy as np



# Create a figure and axis for plotting on

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# Example usage
# f = lambda x: 3*(x**2)+4*x+ 5
# xhat = findmin(f,-3,2)

from scipy.constants import golden

 
def goldensearch(f,a,b,tol=1e-6):
    xl = b - (b-a)/golden
    xu = a + (b-a)/golden

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# download the opencv-2.4.10 for unix
# unzip the library to some temporary folder; let's say it's ~/opencv
# see http://hvrl.ics.keio.ac.jp/kimura/opencv/opencv-2.4.10.html
# for build patch

#build ffmpeg
$ cd /tmp/
$ tar xvjf ffmpeg-2.5.3.tar.bz2
$ cd ffmpeg-2.5.3/
$ ./configure --disable-yasm --disable-iconv

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{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# A short tutorial on pandas MultiIndexing with DataFrames"
   ]
  },
  {

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ipython nbconvert --to markdown <notebook>.ipynb --config jekyll.py

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From 9ba6f4c25c50ce80c9195c45df7fab9d1e1c8152 Mon Sep 17 00:00:00 2001
From: "tdos.apone" <toemossgarcia@gmail.com>
Date: Thu, 10 Dec 2015 11:03:09 -0600
Subject: [PATCH 1/2] initial big-endian attempt

---
 build-toolchain.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/build-toolchain.sh b/build-toolchain.sh

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# Modified version of libusb1.spec from libusb1-1.0.9-0.6.rc1.el6.rpm
# to create an RPM package for libusb-1.0.20
Summary: A library which allows userspace access to USB devices
Name: libusb1
Version: 1.0.20
Release: 0
Source0: libusb-1.0.20.tar.bz2
#Source0: http://downloads.sourceforge.net/libusb/libusb-%{version}.tar.bz2

License: LGPLv2+

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import re
from string import Formatter

_fspecre = ("((?P<fill>{fill})?(?P<align>{align}))?"
            "(?P<sign>{sign})?"
            "(?P<prefix>#)?"
            "(?P<zeropad>0)?"
            "(?P<width>{width})?"
            "(?P<thousands>,)?"
            "(?:\.(?P<precision>{precision}))?"

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#!/usr/bin/env python2
"""
Simultaneous record and play using libsndfile and portaudio libraries.

You should choose a stream rate that is compatible with your device HW,
or you could get unreliable results.
"""
import pyaudio as pa
import soundfile as sf
import wave