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Append a dictionary to a dictionary [duplicate]

... You can do orig.update(extra) or, if you don't want orig to be modified, make a copy first: dest = dict(orig) # or orig.copy() dest.update(extra) Note that if extra and orig have overlapping keys, the final value will be taken from extra. For example, &g...
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while (1) Vs. for (;;) Is there a speed difference?

... "I try not to define new keywords for my maintenance" — if only more people took that attitude I wouldn’t be clutching at all these inane and magical sleight-of-hand shenanigans every time I turned around! – tchrist Aug 19 '15 at 23:22 ...
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unbound method f() must be called with fibo_ instance as first argument (got classobj instance inste

... OK, first of all, you don't have to get a reference to the module into a different name; you already have a reference (from the import) and you can just use it. If you want a different name just use import swineflu as f. Second, you are getting a reference to the class rather than instantiating t...
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Batch file. Delete all files and folders in a directory

... Note: If you want to bypass "Are you sure you want to delete..." prompt youll need to add /F Q flags: del . /F /Q – Rhyuk Apr 22 '13 at 20:41 ...
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django urls without a trailing slash do not redirect

... "When set to True, if the request URL does not match any of the patterns in the URLconf and it doesn’t end in a slash, an HTTP redirect is issued to the same URL with a slash appended. Note that the redirect may cause any data submitted in a ...
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How to specify a multi-line shell variable?

... Note that read will have an exit code of 1 in this situation; if that matters (you are running with set -e, for example), you'll want add a || true at the end of the first line. – chepner Mar 15 '13 at 12:53 ...
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Split by comma and strip whitespace in Python

...of the blank list entries. > text = [x.strip() for x in text.split('.') if x != ''] – RandallShanePhD Jul 28 '17 at 19:41 ...
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Regex for string contains?

What is the regex for simply checking if a string contains a certain word (e.g. 'Test')? I've done some googling but can't get a straight example of such a regex. This is for a build script but has no bearing to any particular programming language. ...
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For..In loops in JavaScript - key value pairs

I was wondering if there's a way to do something like a PHP foreach loop in JavaScript. The functionality I'm looking for is something like this PHP Snippet: ...
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How to decode Unicode escape sequences like “\u00ed” to proper UTF-8 encoded characters?

...'; return preg_replace_callback($regex, function($matches) { if (isset($matches[3])) { $cp = hexdec($matches[3]); } else { $lead = hexdec($matches[1]); $trail = hexdec($matches[2]); // http://unicode.org/faq/utf_bom.html#utf16-4 ...