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Convert unix time to readable date in pandas dataframe

...ndas.tslib.OutOfBoundsDatetime: cannot convert input with unit 's'" This means the DATE_FIELD is not specified in seconds. In my case, it was milli seconds - EPOCH time. The conversion worked using below: df[DATE_FIELD]=(pd.to_datetime(df[DATE_FIELD],unit='ms')) ...
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What does bundle exec rake mean?

What does bundle exec rake db:migrate mean? Or just bundle exec rake <command> in general? 7 Answers ...
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HttpServletRequest - how to obtain the referring URL?

... The URLs are passed in the request: request.getRequestURL(). If you mean other sites that are linking to you? You want to capture the HTTP Referrer, which you can do by calling: request.getHeader("referer"); share...
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How to convert boost path type to string?

...and note the second line: class path canonize() Function removed - that means it was once in the library but no longer--the definition of deprecated. – Brian Jack Jan 8 '16 at 1:22 ...
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How to access array elements in a Django template?

...s used for four different notations in Python. In a template, foo.bar can mean any of: foo[bar] # dictionary lookup foo.bar # attribute lookup foo.bar() # method call foo[bar] # list-index lookup It tries them in this order until it finds a match. So foo.3 will get you y...
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Why is an int in OCaml only 31 bits?

...rd boundaries. Some even don't support unaligned access at all. What this means is that in practice, all pointers will be divisible by 4, which means they will always end with two 0 bits. This allows us to distinguish between real pointers (that end in 00) and pointers which are actually integers i...
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Difference Between Invoke and DynamicInvoke

... Does it mean that in case of usage the DynamicInvoke compiler produce more IL code to handle delegate invocation? – testCoder Oct 12 '12 at 11:54 ...
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What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?

...First, there are two types of compression: Lossless and Lossy. Lossless means that the image is made smaller, but at no detriment to the quality. Lossy means the image is made (even) smaller, but at a detriment to the quality. If you saved an image in a Lossy format over and over, the image qual...
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Including JavaScript class definition from another file in Node.js

...s like myFile.mjs. This extension comes with all the goodies of es6, but I mean I recommend you to you webpack and Babel share | improve this answer | follow ...
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Comparing Timer with DispatcherTimer

... Thanks for your prompt response. So this means, whenever I want to have a timer related to UI, I should use DispatcherTimer, and when I want to fire a timer, which I don't want to freeze UL, I should use System.Threading.Timer in a separate thread. The second questi...