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class Solution(object):
    def lengthOfLongestSubstring(self, s):
        """
        :type s: str
        :rtype: int
        """
        resstring = ''
        cache = ''
        for i in s:
            if i not in cache:

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# Definition for singly-linked list.
# class ListNode(object):
#     def __init__(self, x):
#         self.val = x
#         self.next = None
def addtwoNode(node1,node2,step):
    if node1 is None:
        node1_val = 0
    else:
        node1_val = node1.val

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#--example 1--
from django.dispatch import Signal
login_signal=Signal()

def login_func(**kwargs):
    print 'login_func'
    login_signal.send(sender='login_func', **kwargs)
    
def login_handler1(sender,**kwargs):
    print 'someone login'

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// 定义updateTitle指令
app.directive('updateTitle', function($rootScope, $timeout) {
  return {
    link: function(scope, element) {

      var listener = function(event, toState, toParams, fromState, fromParams) {
        var title = 'Default Title';
        if (toState.data && toState.data.pageTitle) title = toState.data.pageTitle;
        // Set asynchronously so page changes before title does
        $timeout(function() {

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from oss.oss_api import *
ID='fdsfdsf'
KEY='fdsfdsfsfdd'
oss=OssAPI(access_id=ID,secret_access_key=KEY)
# res=oss.get_bucket_acl('headimg2')
# print res.status,res.read()
res=oss.put_object_from_file('headimg','your.jpg','1.jpg')
print res.status,res.read()

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# coding=utf-8

"""
jQuery templates use constructs like:
 
    {{if condition}} print something{{/if}}
 
This, of course, completely screws up Django templates,
because Django thinks {{ and }} mean something.
 

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import re
re.subn(r'<.+>','','fdsfdsfs32<fdsfsf>1321f<fdsf/a>dsfvds')

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request.session.set_expiry(0)

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#!/usr/bin/env python
#
# Hi There!
# You may be wondering what this giant blob of binary data here is, you might
# even be worried that we're up to something nefarious (good for you for being
# paranoid!). This is a base64 encoding of a zip file, this zip file contains
# an entire copy of pip.
#
# Pip is a thing that installs packages, pip itself is a package that someone
# might want to install, especially if they're looking to run this get-pip.py

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#!python
"""Bootstrap distribute installation

If you want to use setuptools in your package's setup.py, just include this
file in the same directory with it, and add this to the top of your setup.py::

    from distribute_setup import use_setuptools
    use_setuptools()

If you want to require a specific version of setuptools, set a download