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Python - write() versus writelines() and concatenated strings
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More specifically, writelines expects an iterable. You can use a list, a tuple, or a generator.
– Mark Ransom
Sep 11 '12 at 20:52
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What's the difference between an exclusive lock and a shared lock?
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When the students are reading (shared locks) what is on the board:
They all can read what is on it, together => Multiple shared locks can co-exist.
The teacher waits for them to finish reading before she clears the board to write more => If one or more shared locks already exist, exclusive ...
Is there any connection string parser in C#?
... on) derive. The connection string
builders let developers
programmatically create syntactically
correct connection strings, and parse
and rebuild existing connection
strings.
The subclasses of interest are:
System.Data.EntityClient.EntityConnectionStringBuilder
System.Data.Odbc.OdbcCon...
Can't launch my app in Instruments: At least one target failed to launch
I have all my code signing entitlements set correctly. Running the app on my phone is fine, but launching it in instruments gives me an error message:
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Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
...ne of the feature descriptors can differentiate bottles from a cans.. They all just view invariant local pattern descriptors. I agree that SIFT,SURF,ORB,FREAK etc. can help you in feature matching but.. What about your other parts of the question like occlusions, Bottle vs Can etc. I hope this is no...
Mercurial error: abort no username supplied
Problem on WindowsXP (likely will happen on all Win installs), first time using Mercurial. I found the answer in an inobvious place so I'm asking/answering the question myself so others don't have to search like I did.
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What's the difference between encoding and charset?
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Basically:
charset is the set of characters you can use
encoding is the way these characters are stored into memory
share
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How to flip background image using CSS?
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You can flip it horizontally with CSS...
a:visited {
-moz-transform: scaleX(-1);
-o-transform: scaleX(-1);
-webkit-transform: scaleX(-1);
transform: scaleX(-1);
filter: FlipH;
-ms-filter: "FlipH";
}
jsFiddle.
If you want ...
rsync exclude according to .gitignore & .hgignore & svn:ignore like --filter=:C
...ps://git-scm.com/docs/git-ls-files
Options:
--exclude-standard Consider all .gitignore files.
-o Don't ignore unstaged changes.
-i Only output ignored files.
--directory Only output the directory path if the entire directory is ignored.
The only thing I left to ignore was .git.
rsync -azP --ex...
Building a notification system [closed]
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(Add time fields where you see fit)
This is basically for grouping changes per object, so that you could say "You have 3 friend requests". And grouping per actor is useful, so that you could say "User James Bond made changes in your bed". This also gives ability to translate...