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What does if __name__ == “__main__”: do?
...e is a library, but you want to have a script mode where it runs some unit tests or a demo.
Your module is only used as a main program, but it has some unit tests, and the testing framework works by importing .py files like your script and running special test functions. You don't want it to try ru...
Case insensitive comparison of strings in shell script
...use parameter expansion to modify a string to all lower-/upper-case:
var1=TesT
var2=tEst
echo ${var1,,} ${var2,,}
echo ${var1^^} ${var2^^}
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Why is good UI design so hard for some Developers? [closed]
...way to explore design options and find the right design, whereas usability testing is about getting the design right. Paper prototyping is fast, cheap, and effective during the early design stages. Much faster than coding a digital prototype. The key text here is Sketching User Experience: Getting t...
No Exception while type casting with a null in java
...s the null value to String. So far I only had to cast null explicitly in a test where a method was overloaded and I wanted to test its behavior with null input. Still, good to know, I was about to write a similar answer before I found yours.
– Vlasec
Apr 13 '16...
Why do assignment statements return a value?
...tanding is 100% incorrect." -- While the OP's use of English isn't the greatest, his/her "understanding" is about what should be the case, making it an opinion, so it isn't the sort of thing than can be "100% incorrect". Some language designers agree with the OP's "should", and make assignments have...
multiprocessing: How do I share a dict among multiple processes?
...:
return s.encode('utf-8') if isinstance(s, unicode) else s
def mmap_test():
n = 1000000
d = shared_immutable_dict({str(i * 2): '1' for i in xrange(n)})
start_time = default_timer()
for i in xrange(n):
if bool(d.get(str(i))) != (i % 2 == 0):
raise Exception(...
How to check if a given directory exists in Ruby
...
You could use Kernel#test:
test ?d, 'some directory'
it gets it's origins from https://ss64.com/bash/test.html
you will notice bash test has this flag -d to test if a directory exists
-d file True if file is a Directory. [[ -d demofile ]]...
Exporting functions from a DLL with dllexport
..."C" removes the decoration so that instead of :
__declspec(dllexport) int Test(void) --> dumpbin : ?Test@@YaHXZ
you obtain a symbol name undecorated:
extern "C" __declspec(dllexport) int Test(void) --> dumpbin : Test
However the _stdcall ( = macro WINAP...
JavaScript Regular Expression Email Validation [duplicate]
...attern =/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
return pattern.test(str); // returns a boolean
}
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What is the difference between Scrum and Agile Development? [closed]
...ent cycle, including planning, requirements analysis, design, coding, unit testing, and acceptance testing when a working product is demonstrated to stakeholders.
So if in a SCRUM Sprint you perform all the software development phases (from requirement analysis to acceptance testing), and in my opi...