Python Mechanize Cheat Sheet | Mechanize 功能速查表

from:http://www.pythonforbeginners.com/cheatsheet/python-mechanize-cheat-sheet

Mechanize

A very useful python module for navigating through web forms is Mechanize.
In a previous post I wrote about “Browsing in Python with Mechanize”.
Today I found this excellent cheat sheet on scraperwiki that I would like to share.

 

Create a browser object

Create a browser object and give it some optional settings.

 

Open a webpage

Open a webpage and inspect its contents

 

Using forms

List the forms that are in the page

To go on the mechanize browser object must have a form selected

 

Using Controls

Iterate through the controls in the form.

Controls can be found by name

Having a select control tells you what values can be selected

Because ‘Select’ type controls can have multiple selections, they must be set
with a list, even if it is one element.

Text controls can be set as a string

Controls can be set to readonly and disabled.

OR disable all of them like so

 

Submit the form

When your form is complete you can submit

 

Finding Links

Following links in mechanize is a hassle because you need the have the link
object.
Sometimes it is easier to get them all and find the link you want from the text.

Follow link and click links is the same as submit and click

I hope that you got more understanding of the Mechanize module in Python.

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