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ImportError: Cannot import name X
I have four different files named: main, vector, entity and physics. I will not post all the code, just the imports, because I think that's where the error is. (If you want, I can post more)
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Combine multiple Collections into a single logical Collection?
...terate over all elements (ideally, read only).
I'm using guava collections and I wonder how I could use guava iterables/iterators to generate a logical view on the internal collections without making temporary copies.
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What's the use/meaning of the @ character in variable names in C#?
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And for those wondering, in VB.NET you can use [ ] to specify a verbatim identifier, e.g. Dim [String] As String.
– MicroVirus
Apr 28 '14 at 11:24
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Why use a ReentrantLock if one can use synchronized(this)?
I'm trying to understand what makes the lock in concurrency so important if one can use synchronized (this) . In the dummy code below, I can do either:
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Deleting all files from a folder using PHP?
For example I had a folder called `Temp' and I wanted to delete or flush all files from this folder using PHP. Could I do this?
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How to convert “camelCase” to “Camel Case”?
I’ve been trying to get a JavaScript regex command to turn something like "thisString" into "This String" but the closest I’ve gotten is replacing a letter, resulting in something like "Thi String" or "This tring" . Any ideas?
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How to export collection to CSV in MongoDB?
...mit/586c00ef09c32c77907bd20d722049ed23065398 fixes the docs for 3.0.0-rc10 and later. It changes
Fields string `long:"fields" short:"f" description:"comma separated list of field names, e.g. -f name,age"`
to
Fields string `long:"fields" short:"f" description:"comma separated list of field names ...
How to get the integer value of day of week
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it will return 0 for monday and so on ?
– akshaykumar6
Feb 8 '12 at 18:23
11
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What does set -e mean in a bash script?
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From help set :
-e Exit immediately if a command exits with a non-zero status.
But it's considered bad practice by some (bash FAQ and irc freenode #bash FAQ authors). It's recommended to use:
trap 'do_something' ERR
to run do_something function when errors occur.
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What does the PHP error message “Notice: Use of undefined constant” mean?
...It's not "bizarre"... It's "backward compatible". PHP originally allowed and even promoted using unquoted strings as keys. (Okay, maybe it is still "bizarre". :-)
– Brian White
Oct 12 '12 at 19:52
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