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〖高级视图和URL配置〗
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一、流线型化(Streamlining)函数导入
方式1:
from django.conf.urls.defaults import * from mysite.views import current_datetime,hours_ahead urlpatterns = patterns('',     (r'^now/$', current_datetime),     (r'^now/plus(\d{1,2})hours/$', hours_ahead), )
方式2:
from django.conf.urls.defaults import * from mysite import views urlpatterns = patterns('',     (r'^now/$', views.current_datetime),     (r'^now/plus(\d{1,2})hours/$', views.hours_ahead), )
方式3：
from django.conf.urls.defaults import * urlpatterns = patterns('mysite.views',     (r'^/?$', 'archive_index'),     (r'^(\d{4})/([a-z]{3})/$', 'archive_month'), ) urlpatterns += patterns('weblog.views',     (r'^tag/(\w+)/$', 'tag'), )

譬如，以下gumi/db.py代码，其中gumi制作Django项目名，项目中使用的唯一的数据库连接的包装，作为py调用。
# -*- coding: utf-8 -*- from django.conf import settings from django.core import signals from django.dispatch import dispatcher import sqlalchemy from sqlalchemy.orm import scoped_session, sessionmaker from sqlalchemy.engine.url import URL __all__ = ['Session', 'metadata'] def create_engine():     url = URL(drivername=settings.DATABASE_ENGINE,               database=settings.DATABASE_NAME,               username=settings.DATABASE_USER,               password=settings.DATABASE_PASSWORD,               host=settings.DATABASE_HOST,               port=settings.DATABASE_PORT or None,               query = getattr(settings, 'DATABASE_OPTIONS', {})               )     options = getattr(settings, 'SQLALCHEMY_OPTIONS', {})     engine = sqlalchemy.create_engine(url, **options)     return engine def end_request(signal, sender):     Session.remove() dispatcher.connect(receiver=end_request,                    signal=signals.request_finished) metadata = sqlalchemy.MetaData() Session = scoped_session(sessionmaker(autoflush=True,                                       transactional=True,                                       bind=create_engine()))

dbconfig.py
# -*- coding: utf-8 -*- from django.conf import settings import sqlalchemy from sqlalchemy.engine.url import URL __all__ = ['metadata'] def create_engine():     url = URL(drivername=settings.DATABASE_ENGINE,               database=settings.DATABASE_NAME,               username=settings.DATABASE_USER,               password=settings.DATABASE_PASSWORD,               host=settings.DATABASE_HOST,               port=settings.DATABASE_PORT or None,               query = getattr(settings, 'DATABASE_OPTIONS', {})               )     options = getattr(settings, 'SQLALCHEMY_OPTIONS', {})     engine = sqlalchemy.create_engine(url, **options)     return engine metadata = sqlalchemy.MetaData(create_engine())
urls.py
from django.conf.urls.defaults import * urlpatterns = patterns('servperf.serlist.views',     (r'^list/(?P<list_type>(\d|\.){10,15})?$', 'Readlist'),     (r'^list/?$', 'Readlist',{'list_type': 'listall'}),     (r'^diskio/?$', 'Readlist', {'list_type': 'diskio_data'}),     (r'^diskspace/$', 'Readlist', {'list_type': 'diskspace_data'}),     (r'^loadavg/$', 'Readlist', {'list_type': 'loadavg_data'}),     (r'^mem/$', 'Readlist', {'list_type': 'mem_data'}),     (r'^net/$', 'Readlist', {'list_type':'net_data'}),     # Uncomment this for admin:, {'list_type': 'net'}     (r'^admin/', include('django.contrib.admin.urls')), )

1、问题1

2、问题2

3、问题3：

使用方法非常简单：
在项目目录下的命令行中输入:

自动产生models.py文件：
class DjangoAdminLog(models.Model):       id = models.IntegerField(primary_key=True)       action_time = models.DateTimeField()       user_id = models.IntegerField()       content_type_id = models.IntegerField(null=True, blank=True)       object_id = models.TextField(blank=True)       object_repr = models.CharField(maxlength=200)       action_flag = models.TextField() # This field type is a guess.       change_message = models.TextField()       class Meta:           db_table = 'django_admin_log'

python:目录与文件操作
os和os.path模块
os.listdir(dirname)：列出dirname下的目录和文件
os.getcwd()：获得当前工作目录
os.curdir:返回但前目录（'.')
os.chdir(dirname):改变工作目录到dirname
os.path.isdir(name):判断name是不是一个目录，name不是目录就返回false
os.path.isfile(name):判断name是不是一个文件，不存在name也返回false
os.path.exists(name):判断是否存在文件或目录name
os.path.getsize(name):获得文件大小，如果name是目录返回0L
os.path.abspath(name):获得绝对路径
os.path.normpath(path):规范path字符串形式
os.path.split(name):分割文件名与目录（事实上，如果你完全使用目录，它也会将最后一个目录作为文件名而分离，同时它不会判断文件或目录是否存在）
os.path.splitext():分离文件名与扩展名
os.path.join(path,name):连接目录与文件名或目录
os.path.basename(path):返回文件名
os.path.dirname(path):返回文件路径