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#!/usr/bin/python
import rosbag
import sys

inbag_name = sys.argv[1]
outbag_name = inbag_name.replace('.bag', '-fixed.bag')

with rosbag.Bag(outbag_name, 'w') as outbag:
    for topic, msg, t in rosbag.Bag(inbag_name).read_messages():
        if topic == "/camera/depth_registered/points_drop" and msg.header.frame_id:

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"""
VISUALISE THE LIDAR DATA FROM THE KITTI DATASET

Based on the sample code from
    https://github.com/utiasSTARS/pykitti/blob/master/demos/demo_raw.py
And:
    http://stackoverflow.com/a/37863912

Contains two methods of visualizing lidar data interactively.
 - Matplotlib - very slow, and likely to crash, so only 1 out of every 100

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using System;
using System.Collections.Generic;
 
namespace MyCollections
{
    public class Movie {
        private readonly int movieId;
        private readonly float rating;
        private List<Movie> similarMovies; // Similarity is bidirectional
 

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#!/usr/bin/python

# reference => http://www.puffinwarellc.com/index.php/news-and-articles/articles/33.html

from numpy import zeros
from scipy.linalg import svd
from math import log	# needed for TFIDF
from numpy import asarray, sum

titles = ["The Neatest Little Guide to Stock Market Investing",

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Videos from hack.summit() 2014.

Day 1

Ed Roman - hack.summit() Opening remarks

Scott Hanselman - Author of multiple books on programming, podcaster, educator to half a million developers — Scaling Yourself

Floyd Marinescu - CEO, InfoQ — Culture and Happiness in Virtual Teams

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# http://stackoverflow.com/questions/739654/how-to-make-a-chain-of-function-decorators-in-python?rq=1
def shout(word="yes"):
    return word.capitalize()+"!"

print(shout())
# outputs : 'Yes!'

# As an object, you can assign the function to a variable like any other object 
scream = shout

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django.core.exceptions.ImproperlyConfigured: Error loading psycopg2 module: dlopen(//anaconda/lib/python2.7/site-packages/psycopg2/_psycopg.so, 2): Library not loaded: /Applications/Postgres.app/Contents/Versions/9.3/lib/libssl.1.0.0.dylib
  Referenced from: //anaconda/lib/python2.7/site-packages/psycopg2/_psycopg.so
  Reason: image not found

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django.db.utils.OperationalError: could not connect to server: Connection refused
	Is the server running on host "localhost" (127.0.0.1) and accepting
	TCP/IP connections on port 5432?
could not connect to server: Connection refused
	Is the server running on host "localhost" (::1) and accepting
	TCP/IP connections on port 5432?

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django.db.utils.OperationalError: could not connect to server: No such file or directory
	Is the server running locally and accepting
	connections on Unix domain socket "/tmp/.s.PGSQL.5432"?

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*** Initializing server on localhost:8080 with medstack.settings.base
*** Running all tests
Syncing...
Traceback (most recent call last):
  File "manage.py", line 9, in <module>
    execute_from_command_line(sys.argv)
  File "//anaconda/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
    utility.execute()
  File "//anaconda/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)