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How can I recover the return value of a function passed to multiprocessing.Process?
...ile and execute the file. If you do it in a command prompt you will see an error like this:
AttributeError: Can't get attribute 'worker' on <module '__main__' (built-in)>
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Using vagrant to run virtual machines with desktop environment
... not configured in virtualbox to download the xfce4"? I'm getting the same error when running startx after vagrant ssh
– Joshua Zastrow
May 2 '18 at 15:32
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Are PDO prepared statements sufficient to prevent SQL injection?
...en I do that. One problem is that emulated prepares will only throw syntax errors on execute, but true prepares will throw errors on prepare. So that can cause issues (and is part of the reason tests are borking).
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Exclude a sub-directory using find
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getting an error "find: bad option -not find: path-list predicate-list"
– Ravi
Nov 19 '12 at 19:28
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How to get exit code when using Python subprocess communicate method?
....wait(). The child process will be blocked If it writes to standard output/error, and/or reads from standard input, and there are no peers.
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Is there any JSON Web Token (JWT) example in C#?
...hange the resolver code to request the certificates because else you get a error in a few days when Google changes it's certificates.
– Thomas
Apr 4 '18 at 15:05
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...r = better):
Benchmark (n) Mode Samples Score Error Units
c.a.p.SO29378922.preSize 1 avgt 30 0.025 ▒ 0.001 us/op
c.a.p.SO29378922.preSize 100 avgt 30 0.155 ▒ 0.004 us/op
c.a.p.SO29378922.preSize 1000 avgt 30 1.512 ...
Get ffmpeg information in friendly way
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Another usage of ffprobe which is nicely parseable:
ffprobe -v error -select_streams v:0 -show_entries stream=width,height,r_frame_rate,bit_rate,codec_name,duration -of csv=p=0:s=x video.mp4
results in:
h264x600x480x25/1x385.680000x542326
-select_streams v:0 selects only the video st...
Call by name vs call by value in Scala, clarification needed
...s enough information in @ScalaSignature annotation to throw a compile time error for this. The bytecode for both => T and () => T is same though and is a Function0. See this question for more details.
– vsnyc
Oct 27 '16 at 20:42
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Bitwise operation and usage
...the communication (e.g, with flags (bits)), frame counters, correction and error detection codes, etc. To get the transmitted data in a frame, and to build the frames to send data, you will need for sure bitwise operations.
In general, when dealing with that kind of applications, an API is availabl...