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How to get rid of punctuation using NLTK tokenizer?

I'm just starting to use NLTK and I don't quite understand how to get a list of words from text. If I use nltk.word_tokenize() , I get a list of words and punctuation. I need only the words instead. How can I get rid of punctuation? Also word_tokenize doesn't work with multiple sentences: dots ar...
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What are some common uses for Python decorators? [closed]

While I like to think of myself as a reasonably competent Python coder, one aspect of the language I've never been able to grok is decorators. ...
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Distinct not working with LINQ to Objects

This is based on an example in "LINQ in Action". Listing 4.16. 9 Answers 9 ...
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How can I find a specific element in a List?

My application uses a list like this: 8 Answers 8 ...
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PHP: Storing 'objects' inside the $_SESSION

I just figured out that I can actually store objects in the $_SESSION and I find it quite cool because when I jump to another page I still have my object. Now before I start using this approach I would like to find out if it is really such a good idea or if there are potential pitfalls involved....
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Get all attributes of an element using jQuery

I am trying to go through an element and get all the attributes of that element to output them, for example an tag may have 3 or more attributes, unknown to me and I need to get the names and values of these attributes. I was thinking something along the lines of: ...
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Can I mix Swift with C++? Like the Objective-C .mm files

I just changed my .m files to .mm and use C++. Is there a way to do the same with Swift? 13 Answers ...
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What is sharding and why is it important?

I think I understand sharding to be putting back your sliced up data (the shards) into an easy to deal with aggregate that makes sense in the context. Is this correct? ...
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Android: install .apk programmatically [duplicate]

I made this with help from Android download binary file problems and Install Application programmatically on Android . ...
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Get loop counter/index using for…of syntax in JavaScript

I understand that the basic for…in syntax in JavaScript looks like this: 11 Answers ...