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How to trim whitespace from a Bash variable?
...e single expression could be made conditional, with |, so as to keep it as one single expression, rather than several.
– Victor Zamanian
Apr 9 '14 at 13:59
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Best way to simulate “group by” from bash?
Suppose you have a file that contains IP addresses, one address in each line:
14 Answers
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What are best practices that you use when writing Objective-C and Cocoa? [closed]
...k about in a class? That is especially true in an environment like the iPhone.
3.5) In table cells, make every element (including the cell itself) opaque for performance. That means setting the appropriate background color in everything.
3.6) When using an NSURLConnection, as a rule you may well ...
What is the difference between `raise “foo”` and `raise Exception.new(“foo”)`?
...cue which will catch RuntimeErrors, report them, and then continue. But in one or two circumstances, we want the daemon to really really die on an error, and in that case we raise an Exception, which goes straight through our "normal error handling code" and out.
And again, if you are writing libra...
Hashing a file in Python
...d5.hexdigest()))
print("SHA1: {0}".format(sha1.hexdigest()))
What we've done is we're updating our hashes of this bad boy in 64kb chunks as we go along with hashlib's handy dandy update method. This way we use a lot less memory than the 2gb it would take to hash the guy all at once!
You can test ...
Localization and internationalization, what's the difference?
... (i18n)the process of changing your software so that it isn't hardwired to one language/locale/culture.
Localization (l10n)the process of adding the appropriate resources to your software so that a particular language/locale is supported. It's bigger in scope than just this Wikipedia entry, but it...
Why does Python code use len() function instead of a length method?
....__len__ than to force people to implement .len(). Its the same thing, and one looks much cleaner. If the language is going to have an OOP __len__, what in the world is the point of making len(..)
– alternative
Nov 7 '11 at 21:13
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What's the simplest way to list conflicted files in Git?
...Pacerier, it's just messier. If you had a million unconflicting merges and one conflicting merge, you'd want something succinct for output.
– xster
Jan 7 '16 at 20:50
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How to print a dictionary's key?
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This is the one answer I know isn't right, since the OP said, "I don't want all the keys listed."
– Ned Batchelder
May 6 '11 at 0:58
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Upgrade python packages from requirements.txt using pip command
... I found helpful to do the following. 1. Deleted venv 2. Created a new one with the same name (the way to clean all pip packages) 3. Replace all == to >= in the requirements.txt 4. pip install -r requirements.txt 4.
– zhukovgreen
Jul 28 '17 at 5:17
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