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how to use ng-option to set default value of select element
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Tuning nginx worker_process to obtain 100k hits per min
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Config file:
worker_processes 4; # 2 * Number of CPUs
events {
worker_connections 19000; # It's the key to high performance - have a lot of connections available
}
worker_rlimit_nofile 20000; # Each connection needs a filehandle (or 2 if you are pr...
What is function overloading and overriding in php?
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192
Overloading is defining functions that have similar signatures, yet have different parameters. O...
How do I convert a pandas Series or index to a Numpy array? [duplicate]
... you should use the values attribute:
In [1]: df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]}, index=['a', 'b', 'c']); df
A B
a 1 4
b 2 5
c 3 6
In [2]: df.index.values
Out[2]: array(['a', 'b', 'c'], dtype=object)
This accesses how the data is already stored, so there's no need for a...
How can I find the number of arguments of a Python function?
...eters.
params = sig.parameters
print(params['kwarg1']) # prints: kwarg1=20
Additionally, you can call len on sig.parameters to also see the number of arguments this function requires:
print(len(params)) # 3
Each entry in the params mapping is actually a Parameter object that has further att...
Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
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222
No. pip will not install system-level dependencies. This means pip will not install RPM(s) (Re...
Override back button to act like home button
...apture the Back button press and call moveTaskToBack(true) as follows:
// 2.0 and above
@Override
public void onBackPressed() {
moveTaskToBack(true);
}
// Before 2.0
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
moveTaskTo...
How can I upgrade specific packages using pip and a requirements file?
...exactly your problem, but in my case, I wasn't able to upgrade Django to 1.2.4 - I was always finishing with 1.2.3 version, so I uninstalled Django with:
<virtualenv>/bin/pip uninstall Django
Then I removed <virtualenv>/build/Django directory and finally I installed the proper version w...