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Can scrapy be used to scrape dynamic content from websites that are using AJAX?

I have recently been learning Python and am dipping my hand into building a web-scraper. It's nothing fancy at all; its only purpose is to get the data off of a betting website and have this data put into Excel. ...
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Group by with multiple columns using lambda

How can I group by with multiple columns using lambda? 5 Answers 5 ...
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What is the LD_PRELOAD trick?

I came across a reference to it recently on proggit and (as of now) it is not explained. 9 Answers ...
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1052: Column 'id' in field list is ambiguous

I have 2 tables. tbl_names and tbl_section which has both the id field in them. How do I go about selecting the id field, because I always get this error: ...
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jQuery, simple polling example

I'm learning jQuery, and I'm trying to find a simple code example that will poll an API for a condition. (ie, request a webpage every few seconds and process the results) ...
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Regex for numbers only

I haven't used regular expressions at all, so I'm having difficulty troubleshooting. I want the regex to match only when the contained string is all numbers; but with the two examples below it is matching a string that contains all numbers plus an equals sign like "1234=4321". I'm sure there's a way...
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Display open transactions in MySQL

I did some queries without a commit. Then the application was stopped. 4 Answers 4 ...
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Check a collection size with JSTL

How can I check the size of a collection with JSTL? 4 Answers 4 ...
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How can I see the request headers made by curl when sending a request to the server?

I want to see the request headers made by curl when I am sending a request to the server. How can I check that? 14 Answer...
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How to map and remove nil values in Ruby

I have a map which either changes a value or sets it to nil. I then want to remove the nil entries from the list. The list doesn't need to be kept. ...