小林さんちのメイドラゴンで出てきたコード（小林さんを探せ！） ref: https://qiita.com/ygkn/items/6b3be1afa31e4092826e

session.py

"""
Session Management
(from web.py)
"""

第13話.py

        ?????e = ShelfStore(shelve.open('sess #見切れ
    XXX: ?helveはスレッドセーフ？要確認。
    """
    def __init__(self, shelf):
        self.shelf = shelf

    def __contains__(self, key):
        return key in self.shelf

    def __getitem__(self, key):
        atime, v = self.shelf[key]
        self[key] = v # update atime
        return v# 入力中

第一話20：10ごろ.py

def __delitem__(self, key):
    self.db.delete(self.table, where="session_id=$key", vars=# 見切れ

def cleanup(self, timeout):
    timeout = datetime.# 入力中

第五話02：25ごろ.py

import os, time, datetime, random, base64
import os.path
from copy import deepcopy
try:
    import cPickle as pickle
except ImportError:
    import pickle

from hashlib import sha1

from .# 入力中

第五話06：14ごろ.py

    def _validate_ip(self):
        # IPアドレスの変更を確認する
        if self.session_id and self.get('ip', None) != web.ctx.ip:
            if not self._config.ignore_change_ip:
               return self.expired() 

    def _save(self):
        if not self.get('_killed'):
            self._setcookie(self.session_id)
            self.store[self.session_id] = dict(self._data)
        else:
            self._setcookie(self.session_id, expires=-1)

    def _setcookie(self, session_id, expires='', **kw):
        cookie_name = self._config.cookie_name
        cookie_domain = self._config.cookie_domain
        cookie_path = self._config.cookie_path
        httponly = self._config.httponly
        secure = self._config.secure
        web.setcookie(cookie_name, session_id, expires=expires, domain=cookie_domain, httponly=httponly, secure=sec#見切れ

    def _generate_session_id(self):
        """ランダムのセッションIDを生成する"""

        while True:
            rand = os.urandom(16)
            now = time.time()
            secret_key = self._config.secret_key