i am not sure whether we can capture data from website i.e. suppose if we submit a form we get some data in response from website. How can we capture that data ?.
for example consider a college results website if we enter roll number it gives results data in a browser.i want to know how we can capture and store that data to a database using a program instead of showing it on browser?
thanks in advance
You could use an entirely Python framework: using Mechanize as a browser and form filler, and an html parser like Beautiful Soup to extract and then store the various information you get. To store your results in a database you could then use SQLite.
Related
I'm attempting to scrape the details of all documents on this link.
The problem I'm facing is that the site is created using ASP.NET and the Viewstates aren't me to access the data directly, and I tried a mixture of beautifulSoup, Scrapy and Selenium, but to no avail. The data consists of 12782 documents whose pdf download link I need to extract from the page that redirects from each entry of the returned results on the aforementioned page.
The site also has an API here, but the catch here is that it only returns 2000 data points at any given point of time, so the ~12k data points is out of question.
Can someone help me with ANY ONE of the following:
Create a scraper to get the pdf links
Generate a query to get all the data from the API
Any recurrence relation that helps me generate links to get the queries for the API
Using the requests section in the API to get all the records at the same time delivered to your email
Ideally, a solution in python would be great, but if you can help me get a csv file of all the links, that would also work. Thanks in advance!
I ended up solving the problem by using the request functionality which was located here.
It took in a particular query and my email address and sent me the entire data dump I needed. From that data dump, I could use all the pdf links.
http://www.indymini.com/p/mini-marathon/miniresults
I want to scrap table available on this url with python BS4 but when i change the table size or change page, url does not chang.
When navigating through the table, the URL does not change because the table seems to be implemented using javascript (DataTables library in particular) - and uses AJAX to get relevant data to display.
So, basically, I don't see a way you could scrape the page using BS4 and get data other than those displayed by default, when the page loads.
On the other hand, as the data is retrieved using AJAX, you could try to figure out the format of the AJAX request (what parameter does what with respect to the results you want, for example using Firebug) and retrieve the data directly in JSON format by calling the AJAX URL that supplies the data table.
But, depending on your intended use of the data, you might want to consider asking the owner of the website for permission to download and use the data. And, who knows - they might be willing to help.
Well its a ajax call that is sent to server via GET, here is quick and dirty scrapping code in python
ajax url is
import requests,time
c=0
data=list()
for i in range(1,2278):
url='http://results.xacte.com/json/search?eventId=1387&callback=jQuery18309972286304579958_1494520029659&sEcho=8&iColumns=13&sColumns=&iDisplayStart='+str(c)+'&iDisplayLength=10&mDataProp_0=&mDataProp_1=bib&mDataProp_2=firstname&mDataProp_3=lastname&mDataProp_4=sex&mDataProp_5=age&mDataProp_6=city&mDataProp_7=state&mDataProp_8=country&mDataProp_9=&mDataProp_10=&mDataProp_11=&mDataProp_12=&sSearch=&bRegex=false&sSearch_0=&bRegex_0=false&bSearchable_0=false&sSearch_1=&bRegex_1=false&bSearchable_1=true&sSearch_2=&bRegex_2=false&bSearchable_2=true&sSearch_3=&bRegex_3=false&bSearchable_3=true&sSearch_4=&bRegex_4=false&bSearchable_4=true&sSearch_5=&bRegex_5=false&bSearchable_5=true&sSearch_6=&bRegex_6=false&bSearchable_6=true&sSearch_7=&bRegex_7=false&bSearchable_7=true&sSearch_8=&bRegex_8=false&bSearchable_8=true&sSearch_9=&bRegex_9=false&bSearchable_9=true&sSearch_10=&bRegex_10=false&bSearchable_10=true&sSearch_11=&bRegex_11=false&bSearchable_11=false&sSearch_12=&bRegex_12=false&bSearchable_12=false&iSortCol_0=0&sSortDir_0=asc&iSortingCols=1&bSortable_0=false&bSortable_1=true&bSortable_2=true&bSortable_3=true&bSortable_4=true&bSortable_5=true&bSortable_6=true&bSortable_7=true&bSortable_8=true&bSortable_9=false&bSortable_10=false&bSortable_11=false&bSortable_12=false&_='+str(time.time())
r=requests.get(url)
c+=1
print (r.text,'-------------',)
#do whatever you want to do with it, r.text will give the raw data.
As all we know in web application we have get method and post data method.
Here my problem appear with post data.
For example i want to make my python code that access for search bar of website by insert same values and submit (the website button), then check for the page.
How the code gonna be then if there any documentation about this python concepts!
I am totally confused
Note : i am just beginner in python.
If the website relies on javascript, you're going to need to use something like Selenium which will emulate a typical browser and allow you to insert information onto a page and execute javascript commands.
If, however, the search bar simply posts data to a URL. You can determine that URL and then use requests to post the data and retrieve the result.
resp = requests.post('http://website/search', data = {'term':'value'})
I am new to Python. I am trying to scrape data from a website and the data I want can not be seen on view > source in the browser. It comes from another file. It is possible to scrape the actual data on the screen with Beautifulsoup and Python?
example site www[dot]catleylakeman[dot]co(dot)uk/cds_banks.php
If not, is this possible using another route?
Thanks
The "other file" is http://www.catleylakeman.co.uk/bankCDS.php?ignoreMe=1369145707664 - you can find this out (and I suspect you already have) by using chrome's developer tools, network tab (or the equivalent in your browser).
This format is easier to parse than the final html would be; generally HTML scrapers should be used as a last resort if the website does not publish raw data like the above.
My guess is, the url you are actually looking for is:
http://www.catleylakeman.co.uk/bankCDS.php?ignoreMe=1369146012122
I found it using the developer toolbar and looking at the network traffic (builtin to chrome and firefox, also using firebug). It gets called in with Ajax. You do not even need beatiful soup to parse that one as it seems to be a long string separated with *| and sometimes **|. The following should get you initial access to that data:
import urllib2
f = urllib2.urlopen('http://www.catleylakeman.co.uk/bankCDS.php?ignoreMe=1369146012122')
try:
data = f.read().split('*|')
finally:
f.close()
print data
I would like to access any element in a web page. I know how to do that when I have a form (form = cgi.FieldStorage()), but not when I have, for example, a table.
How can I do that?
Thanks
If you are familiar with javascript, you should be familiar with the DOM. This should help you to get the information you want, seeing how this parses HTML, among other things. Then it's up to you to extract the information you need
HTML parsing using either HTMLParser or Beautiful Soup if you're trying to get data from a web page. You can't really write data to an HTML table like you could do with CGI and forms, so I'm hoping this is what you want.
I personally recommend Beautiful Soup if you want intelligent parsing behavior.
The way to access a table is to parse the HTML. This is different from accessing form data, in that it's not dynamic. Since you mentioned CGI, I'm assuming you're working on the server side of things and that you have the ability to serve whatever content you want. So you could use whatever data you're representing in the table in its raw form before turning it into HTML too.
You can access only data, posted by form (or as GET parameters).
So, you can extract data you need using JavaScript and post it through form