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What is the pythonic way to unpack tuples? [duplicate]
... you're trying to do here:
t = (2010, 10, 2, 11, 4, 0, 2, 41, 0)
dt = datetime.datetime(*t[0:7])
This is called unpacking a tuple, and can be used for other iterables (such as lists) too. Here's another example (from the Python tutorial):
>>> range(3, 6) # normal call with s...
JS strings “+” vs concat method [duplicate]
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There was a time when adding strings into an array and finalising the string by using join was the fastest/best method. These days browsers have highly optimised string routines and it is recommended that + and += methods are fastest/bes...
使用位置传感器 · App Inventor 2 中文网
...rst app reports the location as soon as the sensor gets the data and every time the phone’s location is changed. The second app only invokes the location sensor in response to an event– when the user clicks a button.
For each sample app, the following is provided:
A barcode which can be sca...
When should I use Inline vs. External Javascript?
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At the time this answer was originally posted (2008), the rule was simple: All script should be external. Both for maintenance and performance.
(Why performance? Because if the code is separate, it can easier be cached by browsers....
Can gcc output C code after preprocessing?
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@TorKlingberg Can I do this for multiple files at a time?
– user2808264
Sep 18 '16 at 0:31
@use...
Stack smashing detected
I am executing my a.out file. After execution the program runs for some time then exits with the message:
9 Answers
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Which characters need to be escaped when using Bash?
...at don't always need to be escaped, like ,, } and {.
So not always but sometime:
echo test 1, 2, 3 and 4,5.
test 1, 2, 3 and 4,5.
or
echo test { 1, 2, 3 }
test { 1, 2, 3 }
but care:
echo test{1,2,3}
test1 test2 test3
echo test\ {1,2,3}
test 1 test 2 test 3
echo test\ {\ 1,\ 2,\ 3\ }
test 1 test...
How do I execute a string containing Python code in Python?
...s and locals will make it possible to use them safely. That is false. Any time you use exec and eval, you have to know precisely what code is being executed. If you don't, then you are open to dangerous operations.
– Ned Batchelder
Nov 16 '16 at 23:10
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How do I monitor the computer's CPU, memory, and disk usage in Java?
...sicalMemorySize = 228462592 getFreeSwapSpaceSize = 1129848832 getProcessCpuTime = 390625000 getTotalPhysicalMemorySize = 2147483647 getTotalSwapSpaceSize = 4294967295
– blak3r
May 20 '09 at 5:41
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What is the most frequent concurrency issue you've encountered in Java? [closed]
...amiliar with the intricacies of the Java Memory Model mess this up all the time.
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