vrootic

from urllib.request import urlopen


# Original class 
class UrlTemplate:
    def __init__(self, template):
        self.template = template
    def open(self, **kwargs):
        return urlopen(self.template.format_map(kwargs))

vrootic

def print_msg(msg):
    def printer():
        print(msg)    
    printer()
    
print_msg("hello")  # hello

def print_msg(msg):
    
    def printer():

vrootic

# Suppose I have a list of points, I want to order this list by calculating distance for specific points.

from functools import partial
import math

points = [(1, 2), (3, 4), (5, 6), (7, 8)]
def distance(p1, p2):
    x1, x2 = p1
    y1, y2 = p2
    return math.hypot(x2 - x1, y2 - y1)

vrootic

x = 10
a = lambda y: x + y
x = 20
b = lambda y: x + y

a(10)   # 30
b(10)   # 30

x = 15
a(10)   # 25

vrootic

def spam(a, b=42):
    print(a, b)
    
spam(1)     # a=1, b=42
spam(1, 2)  # a=1, b=2


def spam(a, b=None):
    if b is None:
        b = []

vrootic

def add(x: int, y: int) -> int:
    return x + y

vrootic

import time
import sys
import json
from threading import Thread
from collections import OrderedDict

from tweepy.streaming import StreamListener
from tweepy.api import API
from tweepy import OAuthHandler
from tweepy import Stream

vrootic

import matplotlib.pyplot as plt
import cv2

fig = plt.figure("fig_1")
ax = fig.add_subplot(1, 1, 1)

image = cv2.imread("xxx.jpg")
ax.imshow(image)

plt.show()

vrootic

import numpy as np
import matplotlib.pyplot as plt

#%matplotlib inline

X = np.linspace(0, 10, 256)

plt.plot(X)

vrootic

OSRM build on Linux Ubuntu 14.04LTS

1.
sudo apt-get install build-essential git cmake pkg-config \
libbz2-dev libstxxl-dev libstxxl-doc libstxxl1 libxml2-dev \
libzip-dev libboost-all-dev lua5.1 liblua5.1-0-dev libluabind-dev libtbb-dev

2.
git clone https://github.com/Project-OSRM/osrm-backend.git
cd osrm-backend