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Create list of single item repeated N times
...'string'] * len(columns)
Mutable items
I've used Python for a long time now, and I have never seen a use-case where I would do the above with a mutable instance. Instead, to get, say, a mutable empty list, set, or dict, you should do something like this:
list_of_lists = [[] for _ in columns]
T...
How to make child process die after parent exits?
Suppose I have a process which spawns exactly one child process. Now when the parent process exits for whatever reason (normally or abnormally, by kill, ^C, assert failure or anything else) I want the child process to die. How to do that correctly?
...
How to quickly edit values in table in SQL Server Management Studio?
...ct Explorer. Set the option "Value for Edit Top Rows command" to 0. It'll now allow you to view and edit the entire table from the context menu.
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How to allow remote connection to mysql
... & Password
SELECT host,user,authentication_string FROM mysql.user;
Now your duty is to change this
bind-address = 127.0.0.1
You can find this on
sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf
if you not find this on there then try this
sudo nano /etc/mysql/my.cnf
comment in this
...
Obfuscated C Code Contest 2006. Please explain sykes2.c
...&8|i/64]/(i&2?1:8)%8;
putchar(32 | (b & 1));
}
}
Now, note that a[b] is the same as b[a], and apply the -~ == 1+ change again:
main(int i) {
if(i != 448)
main(i+1);
i--;
if(i % 64 == 0) {
putchar('\n');
} else {
char a = (">'txiZ^...
SourceKitService Terminated
...loyment target from 7.0 to 7.1 and that seems to have solved the issue for now.
– Nick
Aug 7 '14 at 1:43
Setting the d...
How to check if command line tools is installed
I have a macbook pro with OS X 10.8.2.
XCode is installed. I know this as it appears in the Applications directory.
There are also the xcodebuild and xcode-select files in /usr/bin
I need to know if the command line tools is installed.
Is there a command for it?
What can I do to see if XCode CLT is ...
Is there a 'foreach' function in Python 3?
...-litb thing is that he is right... 'for' in python is literally 'foreach' known in other languages...in tcl for eg a 'for' loop would be something like for {stuff ran on beginning of loop} {condition here} {stuff that runs on each iteration} {commands here...} eg: for {set x 1} {$x <= 10} {incr x...
For loop for HTMLCollection elements
...rties of the object):
0
1
2
item
namedItem
@@iterator
length
Hopefully, now you can see why you want to use for (var i = 0; i < list.length; i++) instead so you just get 0, 1 and 2 in your iteration.
Following below is an evolution of how browsers have evolved through the time period 2015-2...
Explicitly calling return in a function or not
...l was originally asking (why explicit return is bad). And I would like to know right (the one right for anyone) answer as well :). Do you consider to provide your explanation for users of this site?
– Petr Matousu
Mar 30 '17 at 8:53
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