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What is the python “with” statement designed for?
...r the first time today. I've been using Python lightly for several months and didn't even know of its existence! Given its somewhat obscure status, I thought it would be worth asking:
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All combinations of a list of lists
...rapper function that takes a as input, iterates over itertools.product(*a) and yields both the tuple produced by itertools and a reverse version (e.g. create a list, reverse() it and convert back to tuple). Best ask a new question.
– Joachim Wagner
Feb 26 at 11...
linux: kill background task
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There's a special variable for this in bash:
kill $!
$! expands to the PID of the last process executed in the background.
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How to get unique device hardware id in Android? [duplicate]
How to get the unique device ID in Android which cannot be changed when performing a phone reset or OS update?
3 Answers
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How to output only captured groups with sed?
...as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude zero or more non-digits
include on...
Download the Android SDK components for offline install
Is it possible to download the Android SDK components for offline install without using the SDK Manager?
The problem is I am behind a firewall which I have no control over and both sites download URLs seem to be blocked (throws a connection refused exception)
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How to get Android crash logs?
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If your app is being downloaded by other people and crashing on remote devices, you may want to look into an Android error reporting library (referenced in this SO post). If it's just on your own local device, you can use LogCat. Even if the device wasn't connected to a ...
System.currentTimeMillis vs System.nanoTime
... movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
10 Answ...
find -exec with multiple commands
I am trying to use find -exec with multiple commands without any success. Does anybody know if commands such as the following are possible?
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How would I run an async Task method synchronously?
I'm learning about async/await, and ran into a situation where I need to call an async method synchronously. How can I do that?
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