Python Basic 2

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练完基础以后，还需要看看一些基本的概念就开始按照官方文档来做一些简单的demo，但是我得提前说一下一些基本的东西。

比如说我会在每张新建的页面的头部会加上

#!/usr/bin/env python
# -*- coding: utf-8 -*-

跟着文档做完以后还是觉得缺点什么，因为还是对一些概念性的东西不明白，后来又去Udacity看了一下印度阿三讲的，稍稍明白一点,可能还是自己的理解不够透彻吧。

先说一下做demo的感想吧，每个人对文档的内容理解都是不一样的，也就是说一篇再详细的操作文档，你按照它所说一步一步走下去，最理想的情况是你得到和它所说的结果一致。但是生活并不能像韩剧那样发展，很有可能在过程中碰到这样或者是那样的bug，不要灰心，不要心急，作者也不想这样的，现实是他没有考虑到你用的是什么系统，开发环境，就算这些都是一样，他也不能保证你不会把a敲成b。

让我们来做一个非常酷的小demo，建3个Python文件，media.py entertainment.py fresh_tomatoes.py在同一级目录下：

media.py

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import webbrowser

class Movie():

  def __init__(self, title, storyline, douban_image, video_url):
    self.title = title
    self.storyline = storyline
    self.douban_image = douban_image
    self.video_url = video_url

  def show_movie(self):
    webbrowser.open(self.video_url)

entertainment.py

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import fresh_tomatoes
import media


shaonv = media.Movie("Our Times",
                     "“路人少女”林真心暗恋校草，“校霸”徐太宇明爱校花，因此两人组成史上最强失恋联盟，用尽各种拆散大法，终得逞，但这真的是happy ending吗？",
                     "http://img31.mtime.cn/mg/2015/11/17/140258.10433511_270X405X4.jpg",
                     "https://www.youtube.com/watch?v=uBKZKv_42Ho&list=PLAwxTw4SYaPnYajEbZvqtcVWQ6XGhvtOW&index=115")

fallinlove = media.Movie("Mojin-The Lost Legend",
                         "上世纪90代初，探墓高手胡八一决定金盆洗手。他与未婚妻Shirley杨移居美国，婚礼前，发现20年前死在“百眼窟”的初恋对象丁思甜居然还活着。老胡联手Shirley杨和老搭档，发现流传千年的惊天秘密。",
                         "http://img31.mtime.cn/mg/2015/12/16/105727.28403894_270X405X4.jpg",
                         "https://www.youtube.com/watch?v=uBKZKv_42Ho&list=PLAwxTw4SYaPnYajEbZvqtcVWQ6XGhvtOW&index=115")


laopaoer = media.Movie("Mr. Six",
                         "曾经风光四九城的老炮六爷，难以适应社会巨变，蛰伏于胡同深处，过着溜鸟、管闲事、发牢骚的无聊日子。 某日，六爷得知，离家出走已久的儿子晓波，因与人纠纷，被新崛起的一代以小飞为首年轻顽主非法拘禁。为了解救儿子，..",
                         "http://img31.mtime.cn/mg/2015/12/09/094723.69065942_270X405X4.jpg",
                         "https://www.youtube.com/watch?v=uBKZKv_42Ho&list=PLAwxTw4SYaPnYajEbZvqtcVWQ6XGhvtOW&index=115")

ergun = media.Movie("Devil and Angel",
                         "改编自同名话剧，讲述了莫非里和查小刀两个性格迥异的人狭路相逢发生的故事。",
                         "http://img31.mtime.cn/mg/2015/11/04/094019.43784759_270X405X4.jpg",
                         "https://www.youtube.com/watch?v=uBKZKv_42Ho&list=PLAwxTw4SYaPnYajEbZvqtcVWQ6XGhvtOW&index=115")

menshen = media.Movie("Little Door Gods",
                         "故事发生在神界和人间的江南小镇。门神神荼和郁垒是两兄弟，因为近些年人间对神仙们的冷落，神界经济萧条，门神、土地爷这些小神们面临下岗失业的危险。于是，二门神郁垒决定去人间，做一番惊天动地的事情，证明门神的价值。门神俩兄弟..",
                         "http://img31.mtime.cn/mg/2015/12/16/100905.69509860_270X405X4.jpg",
                         "https://www.youtube.com/watch?v=uBKZKv_42Ho&list=PLAwxTw4SYaPnYajEbZvqtcVWQ6XGhvtOW&index=115")

zuiaide = media.Movie("The Secret",
                         "该片讲述了黎明饰演的凯峰与王珞丹饰演的秋捷是一对恩爱夫妻，在一次雪山攀登中发生意外，凯峰无法走出痛失爱人的阴影整日沉浸在不可自拔的思念中，也是在这种强烈爱意下，秋捷重回到了他的身边。",
                         "http://img31.mtime.cn/mg/2015/12/11/092153.84483993_270X405X4.jpg",
                         "https://www.youtube.com/watch?v=uBKZKv_42Ho&list=PLAwxTw4SYaPnYajEbZvqtcVWQ6XGhvtOW&index=115")

xiagao = media.Movie("极限挑战",
                         "黄渤、孙红雷、黄磊、罗志祥、王迅、张艺兴在拍《极限挑战》时，意外被雷“劈”回到几百年前的大明朝。6人得到皇帝恩宠，却因为一个失误造成皇帝驾崩。",
                         "http://img31.mtime.cn/mg/2015/12/01/095119.94576288_270X405X4.jpg",
                         "https://www.youtube.com/watch?v=uBKZKv_42Ho&list=PLAwxTw4SYaPnYajEbZvqtcVWQ6XGhvtOW&index=115")

movie = [shaonv, fallinlove, laopaoer, ergun, menshen, zuiaide, xiagao]
fresh_tomatoes.open_movies_page(movie)

fresh_tomatoes.py

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import webbrowser
import os
import re


# Styles and scripting for the page
main_page_head = '''
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html, charset=utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge, chrome=1">
    <title>Fresh Tomatoes!</title>
    <!-- Bootstrap 3 -->
    <link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap.min.css">
    <link rel="stylesheet" href="https://netdna.bootstrapcdn.com/bootstrap/3.1.0/css/bootstrap-theme.min.css">
    <script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
    <script src="https://netdna.bootstrapcdn.com/bootstrap/3.1.0/js/bootstrap.min.js"></script>
    <style type="text/css" media="screen">
        body {
            padding-top: 80px;
        }
        #trailer .modal-dialog {
            margin-top: 200px;
            width: 640px;
            height: 480px;
        }
        .hanging-close {
            position: absolute;
            top: -12px;
            right: -12px;
            z-index: 9001;
        }
        #trailer-video {
            width: 100%;
            height: 100%;
        }
        .movie-tile {
            margin-bottom: 20px;
            padding-top: 20px;
        }
        .movie-tile:hover {
            background-color: #EEE;
            cursor: pointer;
        }
        .scale-media {
            padding-bottom: 56.25%;
            position: relative;
        }
        .scale-media iframe {
            border: none;
            height: 100%;
            position: absolute;
            width: 100%;
            left: 0;
            top: 0;
            background-color: white;
        }
    </style>
    <script type="text/javascript" charset="utf-8">
        // Pause the video when the modal is closed
        $(document).on('click', '.hanging-close, .modal-backdrop, .modal', function (event) {
            // Remove the src so the player itself gets removed, as this is the only
            // reliable way to ensure the video stops playing in IE
            $("#trailer-video-container").empty();
        });
        // Start playing the video whenever the trailer modal is opened
        $(document).on('click', '.movie-tile', function (event) {
            var trailerYouTubeId = $(this).attr('data-trailer-youtube-id')
            var sourceUrl = 'http://www.youtube.com/embed/' + trailerYouTubeId + '?autoplay=1&html5=1';
            $("#trailer-video-container").empty().append($("<iframe></iframe>", {
              'id': 'trailer-video',
              'type': 'text-html',
              'src': sourceUrl,
              'frameborder': 0
            }));
        });
        // Animate in the movies when the page loads
        $(document).ready(function () {
          $('.movie-tile').hide().first().show("fast", function showNext() {
            $(this).next("div").show("fast", showNext);
          });
        });
    </script>
</head>
'''


# The main page layout and title bar
main_page_content = '''
  <body>
    <!-- Trailer Video Modal -->
    <div class="modal" id="trailer">
      <div class="modal-dialog">
        <div class="modal-content">
          <a href="#" class="hanging-close" data-dismiss="modal" aria-hidden="true">
            <img src="https://lh5.ggpht.com/v4-628SilF0HtHuHdu5EzxD7WRqOrrTIDi_MhEG6_qkNtUK5Wg7KPkofp_VJoF7RS2LhxwEFCO1ICHZlc-o_=s0#w=24&h=24"/>
          </a>
          <div class="scale-media" id="trailer-video-container">
          </div>
        </div>
      </div>
    </div>
    <!-- Main Page Content -->
    <div class="container">
      <div class="navbar navbar-inverse navbar-fixed-top" role="navigation">
        <div class="container">
          <div class="navbar-header">
            <a class="navbar-brand" href="#">It should be more cool to do this</a>
          </div>
        </div>
      </div>
    </div>
    <div class="container">
      {movie_tiles}
    </div>
  </body>
</html>
'''


# A single movie entry html template
movie_tile_content = '''
<div class="col-md-6 col-lg-4 movie-tile text-center" data-trailer-youtube-id="{trailer_youtube_id}" data-toggle="modal" data-target="#trailer">
    <img src="{douban_image}" width="220" height="342">
    <h2>{movie_title}</h2>
</div>
'''


def create_movie_tiles_content(movies):
    # The HTML content for this section of the page
    content = ''
    for movie in movies:
        # Extract the youtube ID from the url
        youtube_id_match = re.search(
            r'(?<=v=)[^&#]+', movie.video_url)
        youtube_id_match = youtube_id_match or re.search(
            r'(?<=be/)[^&#]+', movie.video_url)
        trailer_youtube_id = (youtube_id_match.group(0) if youtube_id_match
                              else None)

        # Append the tile for the movie with its content filled in
        content += movie_tile_content.format(
            movie_title=movie.title,
            douban_image=movie.douban_image,
            trailer_youtube_id=trailer_youtube_id
        )
    return content


def open_movies_page(movies):
    # Create or overwrite the output file
    output_file = open('fresh_tomatoes.html', 'w')

    # Replace the movie tiles placeholder generated content
    rendered_content = main_page_content.format(
        movie_tiles=create_movie_tiles_content(movies))

    # Output the file
    output_file.write(main_page_head + rendered_content)
    output_file.close()

    # open the output file in the browser (in a new tab, if possible)
    url = os.path.abspath(output_file.name)
    webbrowser.open('file://' + url, new=2)

对，没错。你把这3个文件copy下来放到你本地跑起来，然后看到fresh_tomatoes.html生成，跑在浏览器里面

接下来我还附上几个自己做的小东西

break_time.py

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import time
import webbrowser

total_count = 3
break_count = 0

print ("This program started on "+ time.ctime())

while(break_count < total_count):
  time.sleep(5)
  webbrowser.open("http://www.baidu.com")
  break_count += 1

check_text.py

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import urllib

def read_text():

  quotes = open("/Users/darcy/short-term/test.txt")
  contents_of_file = quotes.read()
  print (contents_of_file)
  quotes.close()
  check_word(contents_of_file)

def check_word(check_text):
  connection = urllib.urlopen("http://www.wdly.com/profanity?q=" + check_text)
  output = connection.read()
  print (output)
  connection.close()

read_text()

rename_file.py

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import os

def rename_file():

  file_list = os.listdir(r"/Users/darcy/short-term/images")
  print(file_list)
  save_path = os.getcwd()
  print ("Current Working Directory is "+ save_path)
  os.chdir(r"/Users/darcy/short-term/images")


  
  for name in file_list:
    print ("Old Name - "+name)
    print ("New Name - "+name.translate(None, "0123456789"))
    os.rename(name, name.translate(None, "0123456789"))
  os.chdir(save_path)

  
rename_file()

send_text.py

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from twilio.rest import TwilioRestClient
 
# Your Account Sid and Auth Token from twilio.com/user/account
account_sid = "AC4527c55338f4a89ec56aa4e1b819d6cb"
auth_token  = "18d83d4a0e988260c44489319ca32d09"
client = TwilioRestClient(account_sid, auth_token)
 
message = client.messages.create(
    body="Darcy, you are really awesome man in the world",
    to="+8613521186285",    
    from_="+15005550006")
print message.sid

一个简单的爬虫demo

scrape.py

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from bs4 import BeautifulSoup
import requests
import csv

source = requests.get('http://coreyms.com').text

soup = BeautifulSoup(source, 'lxml')

csv_file = open('cms_scrape.csv', 'w')

csv_writer = csv.writer(csv_file)
csv_writer.writerow(['headline', 'summary', 'video_link'])

for article in soup.find_all('article'):
    headline = article.h2.a.text
    print(headline)

    summary = article.find('div', class_='entry-content').p.text
    print(summary)

    try:
        vid_src = article.find('iframe', class_='youtube-player')['src']

        vid_id = vid_src.split('/')[4]
        vid_id = vid_id.split('?')[0]

        yt_link = f'https://youtube.com/watch?v={vid_id}'
    except Exception as e:
        yt_link = None

    print(yt_link)

    print()

    csv_writer.writerow([headline, summary, yt_link])

csv_file.close()