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Length of generator output [duplicate]

Python provides a nice method for getting length of an eager iterable, len(x) that is. But I couldn't find anything similar for lazy iterables represented by generator comprehensions and functions. Of course, it is not hard to write something like: ...
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How can I do a line break (line continuation) in Python?

I have a long line of code that I want to break up among multiple lines. What do I use and what is the syntax? 10 Answers ...
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Reading file contents on the client-side in javascript in various browsers

I'm attempting to provide a script-only solution for reading the contents of a file on a client machine through a browser. ...
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Scala: what is the best way to append an element to an Array?

Say I have an Array[Int] like 3 Answers 3 ...
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How do I check whether a jQuery element is in the DOM?

Let's say that I define an element 11 Answers 11 ...
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What are the differences between numpy arrays and matrices? Which one should I use?

What are the advantages and disadvantages of each? 5 Answers 5 ...
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#include in .h or .c / .cpp?

When coding in either C or C++, where should I have the #include 's? 4 Answers 4 ...
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Remove not alphanumeric characters from string

I want to convert the following string to the provided output. 7 Answers 7 ...
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Creating functions in a loop

I'm trying to create functions inside of a loop: 2 Answers 2 ...
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Get the week start date and week end date from week number

I have a query that counts member's wedding dates in the database. 18 Answers 18 ...