Python - Manage Your data: Handling input(CGI, MVC(Model View Controller), Android app)

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 9(Manage Your data: Handling input)、EXERCISE(p.343)を解いてみる。

EXERCISE(p.343)

コード(BBEdit, Emacs)

coachapp.py

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://192.168.1.34:8080'
get_names_cgi = '/cgi-bin/generate_names.py'
get_data_cgi = '/cgi-bin/generate_data.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)

app = android.Android()
status_update(hello_msg)
athletes = sorted(json.loads(send_to_server(web_server + get_names_cgi)))
athlete_names = [row[0] for row in athletes]
app.dialogCreateAlert(list_title)
app.dialogSetSingleChoiceItems(athlete_names)
app.dialogSetPositiveButtonText('Select')
app.dialogSetNegativeButtonText('Quit')
app.dialogShow()
resp = app.dialogGetResponse().result

if resp['which'] in ('positive'):
    selected_athlete = app.dialogGetSelectedItems().result[0]
    which_athlete = athletes[selected_athlete][1]
    athlete = json.loads(send_to_server(web_server + get_data_cgi,
                                    {'which_athlete': which_athlete}))
    athlete_title = '{0} ({1}), top 3 times:'.format(
        athlete['Name'], athlete['DOB'])
    app.dialogCreateAlert(athlete_title)
    app.dialogSetItems(athlete['top3'])
    app.dialogSetPositiveButtonText('OK')
    app.dialogShow()
    resp = app.dialogGetResponse().result

status_update(quit_msg)