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What's the difference between a file descriptor and file pointer?
...ture returned by fopen
typedef struct
{
unsigned char *_ptr;
int _cnt;
unsigned char *_base;
unsigned char *_bufendp;
short _flag;
short _file;
int __stdioid;
char *__newbase;
#ifdef _THREAD_SAFE
v...
Symfony 2 EntityManager injection in service
...service and I need to inject doctrine EntityManager, but I don't see that __construct() is called on my service, and injection doesn't work.
...
What is the use of “assert” in Python?
...eter.
As for disabling them, when running python in optimized mode, where __debug__ is False, assert statements will be ignored. Just pass the -O flag:
python -O script.py
See here for the relevant documentation.
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...
What is the best way to compute trending topics or tags?
...wing code demonstrates this.
from math import sqrt
class zscore:
def __init__(self, pop = []):
self.number = float(len(pop))
self.total = sum(pop)
self.sqrTotal = sum(x ** 2 for x in pop)
def update(self, value):
self.number += 1.0
self.total += valu...
How to measure time taken between lines of code in python?
...
If you want to measure CPU time, can use time.process_time() for Python 3.3 and above:
import time
start = time.process_time()
# your code here
print(time.process_time() - start)
First call turns the timer on, and second call tells you how many seconds have elapsed.
The...
Is there an easy way to request a URL in python and NOT follow redirects?
...st way to do it would be to subclass HTTPRedirectHandler and then use build_opener to override the default HTTPRedirectHandler, but this seems like a lot of (relatively complicated) work to do what seems like it should be pretty simple.
...
How to get current PHP page name [duplicate]
...
You can use basename() and $_SERVER['PHP_SELF'] to get current page file name
echo basename($_SERVER['PHP_SELF']); /* Returns The Current PHP File Name */
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...
Best way to strip punctuation from a string
..."","")
regex = re.compile('[%s]' % re.escape(string.punctuation))
def test_set(s):
return ''.join(ch for ch in s if ch not in exclude)
def test_re(s): # From Vinko's solution, with fix.
return regex.sub('', s)
def test_trans(s):
return s.translate(table, string.punctuation)
def test...
Detect network connection type on Android
...er cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
return cm.getActiveNetworkInfo();
}
/**
* Check if there is any connectivity
* @param context
* @return
*/
public static boolean isConnected(Context context){
Networ...
In jQuery, how do I get the value of a radio button when they all have the same name?
...ur code, jQuery just looks for the first instance of an input with name q12_3, which in this case has a value of 1. You want an input with name q12_3 that is :checked.
$("#submit").click(() => {
const val = $('input[name=q12_3]:checked').val();
alert(val);
});
<script src="https:/...