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Creating a singleton in Python
...h essentially recreates C-style structs in Python using metaclasses. The thread What are some (concrete) use-cases for metaclasses? also provides some examples, they generally seem to be related to declarative programming, especially as used in ORMs.
In this situation, if you use your Method #2, and...
Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
... name, case sensitive!), and the servlet hasn't failed its initialization (read server logs for any deploy/servlet success/fail messages and the actual context path and servlet mapping), then a servlet with URL pattern of /servlet is available at http://localhost:8080/contextname/servlet.
You can ...
Set value to NULL in MySQL
...y,itemname)
VALUES ('$quantity','$itemname')");
I corrected query to read.
mysql_query("INSERT INTO products(quantity,itemname)
VALUES ('".$quantity."','$itemname')");
So the $quantity is outside of the main string.
My sql table now accepted to record null quantity instead of 0
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Why are margin/padding percentages in CSS always calculated against width?
...ke complaining about how confusing and dumb people are in the world then spreading more confusion and stupidity. The reasoning you've provided doesn't make sense: the same argument applies to widths, yet that works just fine. All that would be needed is to set a context and direction that the hei...
Java String new line
...tring x = "Hello, %n there"; . Added spaces around %n just for the sake of readability.
– Manoj Shrestha
Jun 1 '18 at 20:06
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Python - How to sort a list of lists by the fourth element in each list? [duplicate]
...he operator module). While some people find itemgetter and attrgetter less readable than lambdas, others use them extensively, so it's at least worth being able to read them and know what they do.
– abarnert
Jul 9 '13 at 18:20
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Http 415 Unsupported Media type error with JSON
...ited Dec 7 '16 at 20:48
Matthew Read
81711 gold badge2626 silver badges4242 bronze badges
answered May 17 '16 at 15:34
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What is RSS and VSZ in Linux memory management
What are RSS and VSZ in Linux memory management? In a multithreaded environment how can both of these can be managed and tracked?
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What is the difference between sql and mysql [closed]
...MySQL is one of many books holding everything, and SQL is how you go about reading that book.
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git revert back to certain commit [duplicate]
...at the user has a remote repository that they are tracking and that they already pushed their bad commits to it.
– Andy
Jul 7 '16 at 21:13
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