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Getting a map() to return a list in Python 3.x
..." here will cause infinite recursion
map = lmap
x = [1, 2, 3]
map(str, x) #test
map = __global_map #restore the original map and don't do that again
map(str, x) #iterator
share
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improve this answe...
Why do we need the “finally” clause in Python?
...xception. (Or if you don't catch that specific exception.)
myfile = open("test.txt", "w")
try:
myfile.write("the Answer is: ")
myfile.write(42) # raises TypeError, which will be propagated to caller
finally:
myfile.close() # will be executed before TypeError is propagated
In th...
Is there a way to use SVG as content in a pseudo element :before or :after
...
Yes you can! Just tested this and it works great, this is awesome! It still doesn't work with html, but it does with svg.
In my index.html I have:
<div id="test" style="content: url(test.svg); width: 200px; height: 200px;"></div>...
What's the difference between dist-packages and site-packages?
...find $WORKON_HOME -type d -name dist-packages); do
pushd $d
cd ..
if test -d dist-packages/__pycache__; then
mv -v dist-packages/__pycache__/* site-packages/__pycache__/
rmdir -v dist-packages/__pycache__
fi
mv -v dist-packages/* site-packages/
rmdir -v dist-packages
ln -sv sit...
In C++, is it still bad practice to return a vector from a function?
...
@SigTerm: I work on "actual-case scenario". I test what the compiler does and work with that. There is no "may work slower". It simply does not work slower because the compiler DOES implement RVO, whether the standard requires it or not. There are no ifs, buts, or maybes...
How to import multiple .csv files at once?
...),
times = 10L)
}
read_results_lrg_mid_mid <- read_results('./testFolder/500MB_12.5MB_40files')
print(read_results_lrg_mid_mid, digits = 3)
read_results_sml_mic_mny <- read_results('./testFolder/5MB_5KB_1000files/')
read_results_sml_tny_mod <- read_results('./testFolder/5MB_50KB_...
网站伪静态Rewrite重写中文路径时乱码 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...8%AF%9D
1、没NU下：
页面meta=utf8：（要求长度为：6）
test1.asp?q=%D0%A6%BB%B0 乱码（Ц）: 长度为4 － 长度不够
test1.asp?q=%E7%AC%91%E8%AF%9D 正常 : 长度为6
页面meta=gbk：（要求长度为：4）
test2.asp?q=%D0%A6%BB%B0 正常 : ...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...
return sizeof(&A::operator int&& +a) == sizeof(Y);
}
That test-case doesn't work for C++0x in GCC (looks like a bug) and doesn't work in C++03 mode for clang. A clang PR has been filed.
The modified treatment of injected class names of templates in C++11:
template<typename T>...
Coalesce function for PHP?
... in most cases, cause PHP to error with an E_NOTICE. The only safe way to test the existence of a variable before using it is to use it directly in empty() or isset(). The ternary operator suggested by Kevin is the best option if you know that all the options in your coalesce are known to be initi...
How to access route, post, get etc. parameters in Zend Framework 2
...ke it easy to access different types of parameters. As always, reading the tests can prove valuable to understand how something is supposed to be used.
Get a single value
To get the value of a named parameter in a controller, you will need to select the appropriate method for the type of parameter y...