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How to input a regex in string.replace?
...racters" which need to be escaped (i.e. with a backslash placed in front - and the rules are different inside and outside character classes.) There is an excellent online tutorial at: www.regular-expressions.info. The time you spend there will pay for itself many times over. Happy regexing!
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EC2 Can't resize volume after increasing size
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Thank you Wilman your commands worked correctly, small improvement need to be considered if we are increasing EBSs into larger sizes
Stop the instance
Create a snapshot from the volume
Create a new volume based on the snapshot increasing the size
Ch...
Syntax behind sorted(key=lambda: …)
I don't quite understand the syntax behind the sorted() argument:
9 Answers
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What happens when a duplicate key is put into a HashMap?
...e times to HashMap ’s put method, what happens to the original value? And what if even the value repeats? I didn’t find any documentation on this.
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How to remove files and directories quickly via terminal (bash shell) [closed]
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+1 and glad you added the "Be careful!" part... definitely a "Sawzall" command that can quickly turn a good day into a bad one.. if wielded carelessly.
– itsmatt
Apr 15 '10 at 1:30
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Are PDO prepared statements sufficient to prevent SQL injection?
...erver's expecting on the connection both to encode ' as in ASCII i.e. 0x27 and to have some character whose final byte is an ASCII \ i.e. 0x5c. As it turns out, there are 5 such encodings supported in MySQL 5.6 by default: big5, cp932, gb2312, gbk and sjis. We'll select gbk here.
Now, it's very i...
Python: List vs Dict for look up table
...f you don't need to associate values, use sets.
Memory
Both dictionaries and sets use hashing and they use much more memory than only for object storage. According to A.M. Kuchling in Beautiful Code, the implementation tries to keep the hash 2/3 full, so you might waste quite some memory.
If you...
How many system resources will be held for keeping 1,000,000 websocket open? [closed]
Websocket is good, but would it be able to handle 1,000,000 concurrent connections?
How many system resources will be held for keeping 1,000,000 websocket open?
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Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
I've just started learning Ruby and Ruby on Rails and came across validation code that uses ranges:
5 Answers
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Is there any way to create a blank solution (.sln) file first and then add projects?
...ys annoyed me because (to my knowledge) you cannot create a solution first and then add new/existing projects to it. The only way I know how to create a solution is to create a project and specify the solution name for it.
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