IPython notebook for replacing text in a file.

gistfile1.txt

{
 "metadata": {
  "name": "replace text in files"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "header_files = ['blah.txt']\n",
      "\n",
      "odor_name_to_replace = ''\n",
      "odor_name_to_use = ''\n",
      "\n",
      "\n",
      "for f in header_files:\n",
      "    with open(f+'new', \"wt\") as out:\n",
      "        for line in open(f):\n",
      "            out.write(line.replace(odor_name_to_replace, odor_name_to_use))\n",
      "    os.rename(f+'new', f)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 36
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [],
     "language": "python",
     "metadata": {},
     "outputs": []
    }
   ],
   "metadata": {}
  }
 ]
}