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Format bytes to kilobytes, megabytes, gigabytes

...ytes. What's the best way to format this size info to kilobytes, megabytes and gigabytes? For instance I have an MP3 that Ubuntu displays as "5.2 MB (5445632 bytes)". How would I display this on a web page as "5.2 MB" AND have files less than one megabyte display as KB and files one gigabyte and abo...
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How to check if a Ruby object is a Boolean

... Yes, that's called duck typing and a core principle of OOP. I think it's a feature. – Konstantin Haase Jun 19 '12 at 16:41 66 ...
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Get: TypeError: 'dict_values' object does not support indexing when using python 3.2.3 [duplicate]

... In Python 3, dict.values() (along with dict.keys() and dict.items()) returns a view, rather than a list. See the documentation here. You therefore need to wrap your call to dict.values() in a call to list like so: v = list(d.values()) {names[i]:v[i] for i in range(len(names)...
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Undo a Git merge that hasn't been pushed yet

...--hard HEAD~1 It will get you back 1 commit. Be aware that any modified and uncommitted/unstashed files will be reset to their unmodified state. To keep them either stash changes away or see --merge option below. As @Velmont suggested below in his answer, in this direct case using: git rese...
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What is the purpose and use of **kwargs?

...x when calling functions by constructing a dictionary of keyword arguments and passing it to your function: >>> kwargs = {'first_name': 'Bobby', 'last_name': 'Smith'} >>> print_keyword_args(**kwargs) first_name = Bobby last_name = Smith The Python Tutorial contains a good explan...
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How do I rename all folders and files to lowercase on Linux?

... A concise version using the "rename" command: find my_root_dir -depth -exec rename 's/(.*)\/([^\/]*)/$1\/\L$2/' {} \; This avoids problems with directories being renamed before files and trying to move files into non-existing directories (e.g. "A/A" into "a/a"). ...
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Showing the same file in both columns of a Sublime Text window

... -> New View Into File. You can then drag the new tab to the other pane and view the file twice. There are several ways to create a new pane. As described in other answers, on Linux and Windows, you can use AltShift2 (Option ⌥Command ⌘2 on OS X), which corresponds to View → Layout → Colu...
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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()

In Java, what are the performance and resource implications of using 8 Answers 8 ...
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How to beautify JSON in Python?

Can someone suggest how I can beautify JSON in Python or through the command line? 13 Answers ...
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Why are my PowerShell scripts not running?

I wrote a simple batch file as a PowerShell script, and I am getting errors when they run. 9 Answers ...