| ## views.py | |
| from django.shortcuts import render_to_response | |
| from django.template.context import RequestContext | |
| def home(request): | |
| return render_to_response('home.html', {}, | |
| context_instance=RequestContext(request)) | |
| ## don't forget RequestContext, that makes request var can be used in templates |
| from django.core.paginator import Paginator, EmptyPage | |
| class BetterPaginator(Paginator): | |
| """An enhanced version of the Paginator""" | |
| def __init__(self, getvars, *args, **kwargs): | |
| """default args are: | |
| self, object_list, per_page, orphans=0, allow_empty_first_page=True | |
| from mechanize import Browser | |
| import json | |
| LOGIN_URL = 'http://www.shanbay.com/accounts/login/' | |
| USERNAME = '' | |
| PASSWORD = '' | |
| API = 'http://www.shanbay.com/api/word/' | |
| def login(username=USERNAME, password=PASSWORD, login_url=LOGIN_URL): | |
| print '[begin login]' |
| # simple form usage in view | |
| def my_view(request, template_name='home.html'): | |
| # sticks in a POST or renders an empty form | |
| form = MyForm(request.POST or None) | |
| if form.is_valid(): | |
| do_something() | |
| return redirect('/') | |
| return render_to_response(template_name, {'form':form}) | |
| # form with files |
gist-list usage:
g : reload the gist list from server
e : edit current gist description
k : delete current gist
+ : add a file to the current gist
- : remove a file from the current gist
C-x C-s : save a new version of the gist
C-x C-w : rename some file
| >>> import timeit | |
| >>> | |
| >>> data = 'data=xrange(1000000)' | |
| >>> | |
| >>> # be careful when using lambda with map | |
| >>> timeit.timeit('map(lambda x:x*2, data)', data, number=20) | |
| 3.8384609954834 | |
| >>> | |
| >>> # using list comprehension will be faster | |
| >>> timeit.timeit('[i*2 for i in data]', data, number=20) |
| class UserCreationForm(forms.ModelForm): | |
| """ | |
| A form that creates a user, with no privileges, from the given username and password. | |
| """ | |
| username = forms.RegexField(label=_("Username"), max_length=30, regex=r'^[\w.@+-]+$', | |
| help_text = _("Required. 30 characters or fewer. Letters, digits and @/./+/-/_ only."), | |
| error_messages = {'invalid': _("This value may contain only letters, numbers and @/./+/-/_ characters.")}) | |
| password1 = forms.CharField(label=_("Password"), widget=forms.PasswordInput) | |
| password2 = forms.CharField(label=_("Password confirmation"), widget=forms.PasswordInput, | |
| help_text = _("Enter the same password as above, for verification.")) |
| class SQLStorage(dict): | |
| """ | |
| a dictionary that let you do d['a'] as well as d.a | |
| """ | |
| def __getattr__(self, key): return self[key] | |
| def __setattr__(self, key, value): | |
| if self.has_key(key): | |
| raise SyntaxError, 'Object exists and cannot be redefined' | |
| self[key] = value | |
| def __repr__(self): return '<SQLStorage ' + dict.__repr__(self) + '>' |
| #coding=utf-8 | |
| import random | |
| from PIL import Image, ImageDraw, ImageFont, ImageFilter | |
| _letter_cases = "abcdefghjkmnpqrstuvwxy" # 小写字母，去除可能干扰的i，l，o，z | |
| _upper_cases = _letter_cases.upper() # 大写字母 | |
| _numbers = ''.join(map(str, range(3, 10))) # 数字 | |
| init_chars = ''.join((_letter_cases, _numbers)) |
| #!/usr/bin/env python | |
| def f((q, r, t, k)): | |
| n = (3 * q + r) / t | |
| if (4 * q + r) / t == n: | |
| return (10 * q, 10 * (r - n * t), t, k, n) | |
| else: | |
| return (q * k, q * (4 * k + 2) + r * (2 * k + 1), t * (2 * k + 1), k + 1) | |
| def pi(n = -1): |