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What do *args and **kwargs mean? [duplicate]
...to clarify how to unpack the arguments, and take care of missing arguments etc.
def func(**keyword_args):
#-->keyword_args is a dictionary
print 'func:'
print keyword_args
if keyword_args.has_key('b'): print keyword_args['b']
if keyword_args.has_key('c'): print keyword_args['c']
def f...
How to become an OpenCart guru? [closed]
...s all products currently in the cart including options, discounted prices, etc.
$this->cart->add( $product_id, $qty = 1, $options = array()) - Allows you to add a product to the cart
$this->cart->remove( $key ) - Allows you to remove a product from the cart
$this->cart->clear() - A...
Site does not exist error for a2ensite
I have cmsplus.dev under /etc/apache2/sites-available with the following code,
10 Answers
...
How to plot two columns of a pandas data frame using points?
...'])
plt.show() # Depending on whether you use IPython or interactive mode, etc.
and remember that you can access a NumPy array of the column's values with df.col_name_1.values for example.
I ran into trouble using this with Pandas default plotting in the case of a column of Timestamp values with ...
If isset $_POST
...d the ! operator in cases like this (easier to read, less chance of error, etc.) and reverse the logic... if (empty()) {/* No */} else {/* Yes */}
– MrWhite
Aug 1 '14 at 10:58
...
Are there any standard exit status codes in Linux?
...tus 2 when called incorrectly (unknown options, wrong number of arguments, etc.) For example, diff -N, grep -Y or diff a b c will all result in $? being set to 2. This is and has been the practice since the early days of Unix in the 1970s.
The accepted answer explains what happens when a command i...
Algorithm for creating a school timetable
... classes split in sub-groups some of the time?, Is this a weekly schedule? etc.) there isn't a well known problem class which corresponds to all the scheduling problems. Maybe, the Knapsack problem has many elements of similarity with these problems at large.
A confirmation that this is both a har...
How to find the duration of difference between two dates in java?
...
try the following
{
Date dt2 = new DateAndTime().getCurrentDateTime();
long diff = dt2.getTime() - dt1.getTime();
long diffSeconds = diff / 1000 % 60;
long diffMinutes = diff / (60 * 1000) % 60;
long diffHours = diff / (60 * 60 * 1000);
...
c++读注册表 - C/C++ - 清泛网 - 专注C/C++及内核技术
...CESS == rc)
{
path = szBuffer; //处理读出来的值
RegCloseKey(hKey);
}
}
c++ 注册表
C++ mark as deprecated
...warnings. Then you can go on with a specific warning macro for deprecation etc.
For the platforms supporting dedicated deprecation methods you can use that instead of warnings.
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