天下難事 必作于易

                天下大事 必作于細

因为写的模板是标准的 XHTML，所以我们可以直接用浏览器打开 Kid/Genshi 模板文件。这很重要而且很有用，可以保证你的模板在浏览器中看起来美观。

你可以从中观查你的样式表、JavaScript脚本、以及应该出现动态内容的部分，是不是同你设想的一样。

有时候，当你直接浏览模板文件或执行后的模板文件时，它们可能不能正确的链接到它们的样式表文件。要避免这个，你可以使用 href 标识要浏览的模板、使用 py:attrs 处理执行后的页面。例如：

这样再在浏览器中查看模板的话，浏览器只会去查找 href 属性，这样的话样式表就会正确的被载入了。

In [2]: print "hello world" hello world

In [3]: %hi %hist %history

In [3]: %hist 1: True == False

2: print "hello world"

In [4]: In Out[4]: ['\n', 'True == False\n', 'print "hello world"\n', 'ipmagic("%hist ")\n', 'In\n']

In [5]: Out Out[5]: {1: False, 4: ['\n', 'True == False\n', 'print "hello world"\n', 'ipmagic("%hist ")\n', 'In\n', 'Out\n'], 5: }

In [6]: print i, _ii, _iii, , __, Out In ipmagic("%hist ") {1: False, 4: ['\n', 'True == False\n', 'print "hello world"\n', 'ipmagic("%hist ")\n', 'In\n', 'Out\n', 'print i, ii, _iii, , , \n'], 5: {...}} ['\n', 'True == False\n', 'print "hello world"\n', 'ipmagic("%hist ")\n', 'In\n', 'Out\n', 'print i, ii, _iii, , , ___\n'] False

编辑

• 支持行编辑，默认为vi键绑定。可以按 ESC 允许行被编辑
• 允许方便编辑所以代码
• %edit调出 环境变量EDITOR定义的编辑器
• %edit star stop 可以对某一区域编辑

In [4]: hist 1: class A: def init(self, start, end): """Some comment here."""

2: a = 1 3: b = 2 4: c = 0

%edit Will open up an empty editor %edit 2 4 Will open an editor containing lines 2 and 4 %edit 1 Will open up the class definition %edit 1:4 w Will open up the editor with lines 1, 2 and 3

会话和日志 每次使用后会话都有记录。并且可以重放会话快速恢复到上次会话的最后状态

开始记录日志可以使用 -log 或 -logfile 在命令行或者使用%logstart在interpreter。%logstate可以显示当前log的状态

%logoff可以暂停记录，%logon恢复

继续某次会话可以通过命令行使用 -logfile

对象自省 自省可以像标准python那样 ？是个快捷键 例子

In [2]: sys.path? Type: list Base Class:
String Form: ['', '/usr/bin', '/disk2/ag/common', '/usr/lib/python24.zip', '/usr/lib/python2.4', '/usr/lib/pyt <...> 2.4/site-packages/Numeric', '/usr/lib/python2.4/site-packages/gtk-2.0', '/home/dstanek/.ipython'] Namespace: Interactive Length: 13 Docstring: list() -> new list list(sequence) -> new list initialized from sequence's items

In [1]: class C(object): ...: a = "a string" ...: def f(self, name, value): ...: """my docstring here""" ...:

In [2]: C.a? Type: str Base Class:
String Form: a string Namespace: Interactive Length: 8 Docstring: str(object) -> string

Return a nice string representation of the object.
If the argument is a string, the return value is the
same object.

In [3]: ?C.f Type: instancemethod Base Class:
String Form:
Namespace: Interactive File: /mnt/home/dstanek/ Definition: C.f(self, name, value) Docstring: my docstring here

• 集成调试器
• 集成profiler
• Python jobs can be run in the background in a thread.
• 支持配置文件

It's a good thing and is available at http://ipython.scipy.org/

A sprint to add other cool things may be a useful exercise.

To set ipython to be the default:

Python honors the environment variable PYTHONSTARTUP and will execute at startup the file referenced by this variable. If you put at the end of this file the following two lines of code:

    import IPython
   IPython.Shell.IPShell().mainloop(sys_exit=1)