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Get last n lines of a file, similar to tail

...nd the right number of '\n' characters. def tail( f, lines=20 ): total_lines_wanted = lines BLOCK_SIZE = 1024 f.seek(0, 2) block_end_byte = f.tell() lines_to_go = total_lines_wanted block_number = -1 blocks = [] # blocks of size BLOCK_SIZE, in reverse order starting ...
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How can I reliably get an object's address when operator& is overloaded?

..., minus the compiler work around bits: template<class T> struct addr_impl_ref { T & v_; inline addr_impl_ref( T & v ): v_( v ) {} inline operator T& () const { return v_; } private: addr_impl_ref & operator=(const addr_impl_ref &); }; template<class T> str...
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What does the @ symbol before a variable name mean in C#? [duplicate]

...name is recorded in the assembly as "class", vs. with an underscore it is "_class". Thus, if another .NET language doesn't define "class" as a reserved word, they could use the name just "class". – P Daddy Jan 9 '09 at 20:23 ...
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Add single element to array in numpy

...swered Sep 7 '11 at 11:15 reader_1000reader_1000 2,2831515 silver badges1414 bronze badges ...
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How to write a UTF-8 file with Java?

...riter = new OutputStreamWriter(new FileOutputStream(PROPERTIES_FILE), StandardCharsets.UTF_8)) // do stuff } share | improve this answer | follow ...
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Which Boost features overlap with C++11?

...) Local function → Lambda expression Min-Max → std::minmax, std::minmax_element Ratio → std::ratio Static Assert → static_assert Thread → <thread>, etc (but check this question). Typeof → auto, decltype Value initialized → List-initialization (§8.5.4/3) Math/Special Functions ...
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Which is the correct C# infinite loop, for (;;) or while (true)? [closed]

..." on in Visual Studio. Both loops compile into (with .NET Reflector): Label_0000: goto Label_0000; Raptors should attack soon. share | improve this answer | follow ...
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Unzip All Files In A Directory

...s the .zip file: find -name '*.zip' -exec sh -c 'unzip -d "${1%.*}" "$1"' _ {} \; This is an extension of @phatmanace's answer and addresses @RishabhAgrahari's comment: This will extract all the zip files in current directory, what if I want the zip files (present in subfolders) to be extract...
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How can I convert comma separated string into a List

...tList = csv.Split(',') .Where(m => int.TryParse(m, out _)) .Select(m => int.Parse(m)) .ToList(); share | improve this answer | ...
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How to remove stop words using nltk or python

... from nltk.corpus import stopwords # ... filtered_words = [word for word in word_list if word not in stopwords.words('english')] share | improve this answer | ...