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Obfuscated C Code Contest 2006. Please explain sykes2.c
How does this C program work?
4 Answers
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What is the difference between `sorted(list)` vs `list.sort()`?
list.sort() sorts the list and replaces the original list, whereas sorted(list) returns a sorted copy of the list, without changing the original list.
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How do I check if a list is empty?
For example, if passed the following:
27 Answers
27
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Create a “with” block on several context managers? [duplicate]
Suppose you have three objects you acquire via context manager, for instance A lock, a db connection and an ip socket.
You can acquire them by:
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What's the best strategy for unit-testing database-driven applications?
I work with a lot of web applications that are driven by databases of varying complexity on the backend. Typically, there's an ORM layer separate from the business and presentation logic. This makes unit-testing the business logic fairly straightforward; things can be implemented in discrete modul...
SQL WHERE ID IN (id1, id2, …, idn)
I need to write a query to retrieve a big list of ids.
9 Answers
9
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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
In multiple courses, books, and jobs, I have seen text fields defined as VARCHAR(255) as kind of the default for "shortish" text. Is there any good reason that a length of 255 is chosen so often, other than being a nice round number ? Is it a holdout from some time in the past when there was a go...
How exactly does a generator comprehension work?
What does generator comprehension do? How does it work? I couldn't find a tutorial about it.
6 Answers
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Is there a way to cache GitHub credentials for pushing commits?
...itched to synchronizing my repositories to https:// on GitHub (due to firewall issues), and it asks for a password every time.
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Share cookie between subdomain and domain
I have two questions. I understand that if I specify the domain as .mydomain.com (with the leading dot) in the cookie that all subdomains can share a cookie.
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