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Argparse: Way to include default values in '--help'?
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Use the argparse.ArgumentDefaultsHelpFormatter formatter:
parser = argparse.ArgumentParser(
# ... other options ...
formatter_class=argparse.ArgumentDefaultsHelpFormatter)
To quote the documentation:
The other formatter class available, ArgumentDe...
Async/Await vs Threads
...sk. The XxxxAsync() methods are just precooked ones in the .NET framework for common operations that take time. Like downloading data from a web server.
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What is the best way to do a substring in a batch file?
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Well, for just getting the filename of your batch the easiest way would be to just use %~n0.
@echo %~n0
will output the name (without the extension) of the currently running batch file (unless executed in a subroutine called by ...
CMake: Project structure with unit tests
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For questions 1 & 2, I would recommend making a library from your non-test files excluding main.cpp (in this case just src/sqr.cpp and src/sqr.h), and then you can avoid listing (and more importantly re-compiling) all the...
Which “href” value should I use for JavaScript links, “#” or “javascript:void(0)”?
...nction doSomething() {
//Some code
return false;
}
But then they forget to use return doSomething() in the onclick and just use doSomething().
A second reason for avoiding # is that the final return false; will not execute if the called function throws an error. Hence the developers have ...
How do I enable C++11 in gcc?
I use gcc 4.8.1 from http://hpc.sourceforge.net on Mac OSX Mountain Lion. I am trying to compile a C++ program which uses the to_string function in <string> . I need to use the flag -std=c++11 every time:
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.rar, .zip files MIME Type
...spanned archive) are common.
// http://en.wikipedia.org/wiki/ZIP_(file_format)
if ($ext == '.zip' and substr($bytes, 0, 2) == 'PK') {
return TRUE;
}
return FALSE;
}
Notice that it still won't be 100% certain, but it is probably good enough.
$ rar.exe l somefile.zip
somefi...
How to join absolute and relative urls?
...we use urljoin with 3 or mode parameters or which library do you recommend for this?
– Mesut Tasci
Apr 23 '13 at 0:13
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Why does this code segfault on 64-bit architecture but work fine on 32-bit?
... that because of the undefined behaviour it could still fail even on a platform where sizeof(int)==sizeof(int*) holds true, for example if the calling convention used different registers for returning pointers than integers)
The comp.lang.c FAQ has an entry discussing why casting the return from ma...
What do the f and t commands do in Vim?
... commands do in vim and exactly how they work? I can't seem to find this information but people keep telling me that they are very useful. Would really appreciate an answer with an example if possible, thanks!
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