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How do I download a binary file over HTTP?

... file.write(resp.body) end end puts "Done." Edit: Changed. Thank You. Edit2: The solution which saves part of a file while downloading: # instead of http.get f = open('sample.flv') begin http.request_get('/sample.flv') do |resp| resp.read_body do |segment| f.wri...
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~x + ~y == ~(x + y) is always false?

... Assume for the sake of contradiction that there exists some x and some y (mod 2n) such that ~(x+y) == ~x + ~y By two's complement*, we know that, -x == ~x + 1 <==> -1 == ~x + x Noting this result, we have, ~(x+y) == ...
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Why does Stream not implement Iterable?

... People have already asked the same on the mailing list ☺. The main reason is Iterable also has a re-iterable semantic, while Stream is not. I think the main reason is that Iterable implies reusability, whereas Stream is something that can on...
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Git push error '[remote rejected] master -> master (branch is currently checked out)'

...n simply convert your remote repository to bare repository (there is no working copy in the bare repository - the folder contains only the actual repository data). Execute the following command in your remote repository folder: git config --bool core.bare true Then delete all the files except .g...
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How can I convert the “arguments” object to an array in JavaScript?

The arguments object in JavaScript is an odd wart—it acts just like an array in most situations, but it's not actually an array object. Since it's really something else entirely , it doesn't have the useful functions from Array.prototype like forEach , sort , filter , and map . ...
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what is the difference between GROUP BY and ORDER BY in sql

... This statement makes virtually no sense without an accompanying example. – JohnMerlino Aug 7 '14 at 19:43 2 ...
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How do you validate a URL with a regular expression in Python?

...lidate) URL's is the urlparse (py2, py3) module. A regex is too much work. There's no "validate" method because almost anything is a valid URL. There are some punctuation rules for splitting it up. Absent any punctuation, you still have a valid URL. Check the RFC carefully and see if you ca...
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How many constructor arguments is too many?

...answered Sep 2 '08 at 19:08 toolkittoolkit 46.6k1717 gold badges101101 silver badges132132 bronze badges ...
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Naming returned columns in Pandas aggregate function? [duplicate]

...ta.groupby(...).agg(...) df.columns = df.columns.droplevel(0) If you'd like to keep the outermost level, you can use the ravel() function on the multi-level column to form new labels: df.columns = ["_".join(x) for x in df.columns.ravel()] For example: import pandas as pd import pandas.rpy.co...
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Semantic Diff Utilities [closed]

...rge utilities. The traditional paradigm of comparing source code files works by comparing lines and characters.. but are there any utilities out there (for any language) that actually consider the structure of code when comparing files? ...