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What's the idiomatic syntax for prepending to a short python list?
...ue definitively not entirely Liskov substitutable for list.
>>> set(dir(list)) - set(dir(deque))
{'sort'}
The deque also has an appendleft method (as well as popleft). The deque is a double-ended queue and a doubly-linked list - no matter the length, it always takes the same amount of t...
Disable password authentication for SSH [closed]
I'm looking for a way to disable SSH clients from accessing the password prompt as noted here .
5 Answers
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How to kill all processes matching a name?
...ttern is normally only matched against the process name.
When -f is set, the full command line is used.
Which means, for example, if we see these lines in ps aux:
apache 24268 0.0 2.6 388152 27116 ? S Jun13 0:10 /usr/sbin/httpd
apache 24272 0.0 2.6 387944 27104 ? ...
More elegant “ps aux | grep -v grep”
...ll report all processes, because a and x list processes in addition to the set of processes matched by other means.
– Animism
Dec 12 '13 at 22:19
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Hide separator line on one UITableViewCell
...S 8)
if (indexPath.row == self.newCarArray.count-1) {
cell.separatorInset = UIEdgeInsetsMake(0.f, cell.bounds.size.width, 0.f, 0.f);
}
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How to assert output with nosetest/unittest in python?
...o I don't have to re-write any try-finally code, and I don't have to write setup and teardown functions just for this.
import sys
from contextlib import contextmanager
from StringIO import StringIO
@contextmanager
def captured_output():
new_out, new_err = StringIO(), StringIO()
old_out, ol...
How does HTTP file upload work?
...
In the example above, you can see the input MAX_FILE_SIZE with the value set in the form, as well as a section containing the file data. The file name is part of the Content-Disposition header.
The full details are here.
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How to use split?
...
According to MDN, the split() method divides a String into an
ordered set of substrings, puts these substrings into an array, and
returns the array.
???? Example
var str = 'Hello my friend'
var split1 = str.split(' ') // ["Hello", "my", "friend"]
var split2 = str.split('') // ["H", "e", "...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...list, but inner lists are references.
Assignment does not copy. It simply sets the reference to the old data. So you need copy to create a new list with the same contents.
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What is a regular expression for a MAC Address?
...
However, the character set from [0-9a-F] should probably be rewritten as: [0-9a-fA-F]
– TrinitronX
Jun 30 '16 at 4:14
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