python，机械化-使用机械化打开文本文件

Question

I am learning mechanzie. I am trying to open a text file , the link that you would click on says
Text (.prn) One problem i am having is there is only 1 form on this page and the file is not in the form. Another problem for me is there are a couple Text files on this page, but they all have the same name Text (.prn). So i guess i need to get to the first one and open it. One thing that makes the text file I am trying to open unique is that it seems to be named

Summary , maybe i can use this to open it and then use br.form.find_control( or maybe i can use: br.click_link , if i can find some way to direct mechanize to open the first one titled "Summary"

The webpage I am on is: http://www.treasurydirect.gov/govt/reports/pd/mspd/2013/2013_feb.htm

here is the section of the html where the text file is i want to open in mechanize:

 </div> <!-- END LOCALNAV --> <!-- BEGIN CONTENT --> <div id="content"> <h1>February 2013</h1> <!-- InstanceBeginEditable name="content" --> <ul> <li>Summary <ul> <li><a href="/govt/reports/pd/mspd/2013/opds022013.pdf">Adobe Acrobat (.pdf)</a></li> <li><a href="/govt/reports/pd/mspd/2013/opds022013.prn">Text (.prn)</a></li> </ul> </li> <li>STRIPS <ul> <li><a href="/govt/reports/pd/mspd/2013/opdr022013.pdf">Adobe Acrobat (.pdf)</a></li> <li><a href="/govt/reports/pd/mspd/2013/opdr022013.xls">Excel 5.0/95 (.xls )</a></li> <li><a href="/govt/reports/pd/mspd/2013/opdr022013.prn">Text (.prn)</a></li> </ul> </li> <li>Entire MSPD <ul> <li><a href="/govt/reports/pd/mspd/2013/opdx022013.xls">Excel File for Primary Dealers</a></li> <li><a href="/govt/reports/pd/mspd/2013/opdm022013.pdf">Adobe Acrobat (.pdf)</a></li> <li><a href="/govt/reports/pd/mspd/2013/opdm022013.xls">Excel 5.0/95 (.xls)</a></li> <li><a href="/govt/reports/pd/mspd/2013/opdm022013.prn">Text (.prn)</a></li> </ul> </li> </ul> <p>Note: To read or print a PDF document, you need the Adobe Acrobat Reader (v5.0 or higher) software installed on your computer. You can download the Adobe Acrobat Reader from the <a href="/exit.htm?http://get.adobe.com/reader/">Adobe website</a>.</p> <p>Note: If you need <a href="/helpdownload.htm">help downloading...</a></p> <!-- InstanceEndEditable --> </div> <!-- END CONTENT --> <!-- BEGIN SUBLOCALNAV --> <div id="right"> 

here is my code so far starting on the page before the one the text file is on:

  br = mechanize.Browser() br.set_handle_equiv(False) br.open(site) print 'br.title',br.title() allforms = list(br.forms()) br.form = allforms[0] br.follow_link(text_regex="February", nr=0) #br.click_link(text='February', nr=0) # this works to #next page print br.title() allforms = list(br.forms()) print allforms br.form = allforms[0] getstuff=br.click_link(text="Text (.prn)", nr=0) # this works to csvData=getstuff.readlines() # this is where is get error 

here is my traceback:

 Traceback (most recent call last): File "treasury2.py", line 56, in <module> csvData=getstuff.readlines() File "C:\\Python27\\lib\\site-packages\\mechanize\\_urllib2_fork.py", line 173, in __getattr__ raise AttributeError, attr AttributeError: readlines 

I am using mechanize , BeautifulSoup ,urllib , urllib2 and python27

Please give me some help or even a hint on what you think i should use to use.

Answer 1

Right after getstuff=br.click_link(text="Text (.prn)", nr=0) , instead of your csvData=getstuff.readlines() , you should call:

br.open(getstuff)
csvData = br.response().read()

In case you need to do anything else with the previous page (ie, 2013_feb.htm ), call:

br.back()

which will bring br back to the same state as right before the br.open .