Python - Mobile app Development: Small devices(json module(load method), urllib module(urlencode method), urllib2 module(urlopen method) (python2.7))

Head First Python
( O'Reilly Media)
Paul Barry (著)

開発環境

OS X Mavericks - Apple(OS)
Emacs (CUI)、BBEdit - Bare Bones Software, Inc. (GUI) (Text Editor)
Python (プログラミング言語)

Head First Python (Paul Barry(著)、 O'Reilly Media )のChapter 8(Mobile app Development: Small devices)、ANDROID CODE MAGNETS(p.275)を解いてみる。

ANDROID CODE MAGNETS(p.275)

コード(BBEdit)

sample275.py

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

import android
import json
import time

from urllib import urlencode
from urllib2 import urlopen

hello_msg = "Welcome to Coach Kelly's Timing App"
list_title = 'Here is your list of athletes:'
quit_msg = "Quitting Coach Kelly's App."
web_server = 'http://127.0.0.1:8080'
get_names_cgi = '/cgi-bin/generate_names.py'

def send_to_server(url, post_data=None):
    if post_data:
        page = urlopen(url, urlencode(post_data))
    else:
        page = urlopen(url)
    return page.read().decode('utf8')

def status_update(msg, how_long=2):
    app.makeToast(msg)
    time.sleep(how_long)

athlete_names = sorted(json.loads(send_to_server(web_server + get_names_cgi)))

app = android.Android()
status_update(hello_msg)
app.dialogCreateAlert(list_title)
app.dialogSetSingleChoiceItems(athlete_names)
app.dialogSetPositiveButtonText('Select')
app.dialogSetNegativeButtonText('Quit')
app.dialogShow()
resp = app.dialogGetResponse().result
status_update(quit_msg)

ブラウザ, Safari(HTML)

http://localhost:8080/cgi-bin/generate_names.py

<html><head></head><body><pre style="word-wrap: break-word; white-space: pre-wrap;">
["Vera Vi", "James Lee", "Sarah Sweeney", "Sally Sanchez", "Julie Jones", "Mikey McManus"]
</pre></body></html>

サーバー

入出力結果(Terminal)

$ ./simple_httpd.py
Starting simple_httpd on port: 8080
127.0.0.1 - - [30/Jun/2014 14:25:27] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [30/Jun/2014 14:26:51] "GET /cgi-bin/generate_names.py HTTP/1.1" 200 -
127.0.0.1 - - [30/Jun/2014 14:28:59] "GET /cgi-bin/generate_names.py HTTP/1.1" 200 -
  C-c C-c^CTraceback (most recent call last):
  File "./simple_httpd.py", line 10, in <module>
    httpd.serve_forever()
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/socketserver.py", line 236, in serve_forever
    poll_interval)
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/socketserver.py", line 154, in _eintr_retry
    return func(*args)
KeyboardInterrupt
$

クライアント

入出力結果(Terminal)

$ python
Python 2.7.5 (default, Mar  9 2014, 22:15:05) 
[GCC 4.2.1 Compatible Apple LLVM 5.0 (clang-500.0.68)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import android
import json
import time

from urllib import urlencode
from urllib2 import urlopen

hello_msg = "Welcome to Coach Kelly's Timing App"
list_title = 'Here is your list of athletes:'
quit_msg = "Quitting Coach Kelly's App."
web_server = 'http://127.0.0.1:8080'
get_names_cgi = '/cgi-bin/generate_names.py'

def send_to_server(url, post_data=None):
    if post_data:
        page = urlopen(url, urlencode(post_data))
    else:
        page = urlopen(url)
    return page.read().decode('utf8')

import android
>>> import json
>>> import time
>>> 
>>> from urllib import urlencode
>>> from urllib2 import urlopen
>>> 
>>> hello_msg = "Welcome to Coach Kelly's Timing App"
>>> list_title = 'Here is your list of athletes:'
>>> quit_msg = "Quitting Coach Kelly's App."
>>> web_server = 'http://127.0.0.1:8080'
>>> get_names_cgi = '/cgi-bin/generate_names.py'
>>> 
>>> def send_to_server(url, post_data=None):
...     if post_data:
...         page = urlopen(url, urlencode(post_data))
...     else:
...         page = urlopen(url)
...     return page.read().decode('utf8')
... 
>>> athlete_names = sorted(json.loads(send_to_server(web_server + get_names_cgi)))
>>> athlete_names
[u'James Lee', u'Julie Jones', u'Mikey McManus', u'Sally Sanchez', u'Sarah Sweeney', u'Vera Vi']
>>> quit()
$

Kamimura's blog

2014年6月30日月曜日

Python - Mobile app Development: Small devices(json module(load method), urllib module(urlencode method), urllib2 module(urlopen method) (python2.7))

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