http://docs.pylonsproject.org/projects/pyramid/en/1.4-branch/narr/install.html

是我在csdn的博客：http://blog.csdn.net/spaceship20008/article/details/8767884

放在cnblogs做备份

按照介绍操作。

我用的是mint13, python 3.2.3版本。

使用的是virtualenv 开发工具

在一个虚拟的python环境下开发web app

这样很不错。请按照其步骤来。

在python3.2中，有一些东西需要记住：

4.6.2. Old String Formatting Operations

String objects have one unique built-in operation: the % operator (modulo). This is also known as the string formatting or interpolationoperator. Given format % values (where format is a string), % conversion specifications in format are replaced with zero or more elements of values. The effect is similar to the using sprintf() in the C language.

If format requires a single argument, values may be a single non-tuple object. [5] Otherwise, values must be a tuple with exactly the number of items specified by the format string, or a single mapping object (for example, a dictionary).

A conversion specifier contains two or more characters and has the following components, which must occur in this order:

1. The '%' character, which marks the start of the specifier.
2. Mapping key (optional), consisting of a parenthesised sequence of characters (for example, (somename)).
3. Conversion flags (optional), which affect the result of some conversion types.
4. Minimum field width (optional). If specified as an '*' (asterisk), the actual width is read from the next element of the tuple in values, and the object to convert comes after the minimum field width and optional precision.
5. Precision (optional), given as a '.' (dot) followed by the precision. If specified as '*' (an asterisk), the actual precision is read from the next element of the tuple in values, and the value to convert comes after the precision.
6. Length modifier (optional).
7. Conversion type.

When the right argument is a dictionary (or other mapping type), then the formats in the string must include a parenthesised mapping key into that dictionary inserted immediately after the '%' character. The mapping key selects the value to be formatted from the mapping. For example:

这个东西在地一个helloworld历程里面非常重要

看看为什么是%，意思是取得的后面字典的相应index的值。

>>> print('%(language)s has %(number)03d quote types.' %
...       {'language': "Python", "number": 2})
Python has 002 quote types.

In this case no * specifiers may occur in a format (since they require a sequential parameter list).

The conversion flag characters are:

A length modifier (h, l, or L) may be present, but is ignored as it is not necessary for Python – so e.g. %ld is identical to %d.

The conversion types are:

>>> strHello = 'Hello World' 

>>> print (strHello)

Hello World

2. 格式化输出整数

>>> strHello = "the length of (%s) is %d" %('Hello World',len('Hello World'))

>>> print (strHello)
the length of (Hello World) is 11

3. 格式化输出16进制，十进制，八进制整数

#%x --- hex 十六进制
#%d --- dec 十进制
#%o --- oct 八进制>>> nHex = 0xFF
>>> print("nHex = %x,nDec = %d,nOct = %o" %(nHex,nHex,nHex))
nHex = ff,nDec = 255,nOct = 377

4.格式化输出浮点数(float)

import math
>>> print('PI=%f'%math.pi)
PI=3.141593
>>> print ("PI = %10.3f" % math.pi)

PI =      3.142
>>> print ("PI = %-10.3f" % math.pi)

PI = 3.142
>>> print ("PI = %06d" % int(math.pi))
PI = 000003

>>> precise = 3
>>> print ("%.3s " % ("python"))
pyt

>>> precise = 4
>>> print ("%.*s" % (4,"python"))
pyth

>>> print ("%10.3s " % ("python"))pyt

6.输出列表(List)

输出列表

>>> lst = [1,2,3,4,'python']
>>> print (lst)
[1, 2, 3, 4, 'python']

7. 自动换行

>>> for i in range(0,6):print (i,)

0
1
2
3
4
5

>>> import sys
>>> sys.stdout.write('Hello World')
Hello World

 123456789
10
11
12
13
14
15
16

from wsgiref.simple_server import make_server
from pyramid.config import Configurator
from pyramid.response import Responsedef hello_world(request):return Response('Hello %(name)s!' % request.matchdict)if __name__ == '__main__':config = Configurator()config.add_route('hello', '/hello/{name}')config.add_view(hello_world, route_name='hello')app = config.make_wsgi_app()server = make_server('0.0.0.0', 8080, app)server.serve_forever()

from wsgiref.simple_server import make_server
from pyramid.config import Configurator
from pyramid.response import Responsedef hello_world(request):return Response('Hello %(name)s!' % request.matchdict)if __name__ == '__main__':config = Configurator()config.add_route('hello', '/hello/{name}')config.add_view(hello_world, route_name='hello')app = config.make_wsgi_app()server = make_server('0.0.0.0', 8080, app)server.serve_forever()

$ /path/to/your/virtualenv/bin/python helloworld.py

C:\> \path\to\your\virtualenv\Scripts\python.exe helloworld.py

from wsgiref.simple_server import make_server
from pyramid.config import Configurator
from pyramid.response import Responsedef hello_world(request):return Response('Hello %(name)s!' % request.matchdict) #这里面是将 后面的一个字典{name:value} 按照索引name反给%(name)s处。 %s是字符串的意思if __name__ == '__main__':config = Configurator()　　#创建一个Configurator 实例，config.add_route('hello', '/hello/{name}')　　#config.add_view(hello_world, route_name='hello')　#当route_name是hello的时候，保证hello_world是callable的。http://localhost:8080/hello  #保证在目录http://localhost:8080/hello 下运行这个hello_world 函数 #这里当route_name='hello'下传来一个request的时候，config.add_view会把这个request传入hello_world函数，然后hello_world就执行了app = config.make_wsgi_app()　　#对于这个实例，创造一个wsgi协议的appserver = make_server('0.0.0.0', 8080, app)　　　　#创造一个关于这个app的一个serverserver.serve_forever()　　#确定这个server的运行状态，一直运行

1
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    config.add_route('hello', '/hello/{name}')config.add_view(hello_world, route_name='hello')