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Why are C# interface methods not declared abstract or virtual?
...f. In the CIL the method will be private (!) but it will still be callable from outside the class from a reference to the corresponding interface type. Explicit implementations are also non-overridable. This is possible because there's a CIL directive (.override) that will link the private method to...
Adding an arbitrary line to a matplotlib plot in ipython notebook
...th=2)
(of course you can choose the color, line width, line style, etc.)
From your example:
import numpy as np
import matplotlib.pyplot as plt
np.random.seed(5)
x = np.arange(1, 101)
y = 20 + 3 * x + np.random.normal(0, 60, 100)
plt.plot(x, y, "o")
# draw vertical line from (70,100) to (70, 25...
Installing PDO driver on MySQL Linux server
...
On Ubuntu you should be able to install the necessary PDO parts from apt using sudo apt-get install php5-mysql
There is no limitation between using PDO and mysql_ simultaneously. You will however need to create two connections to your DB, one with mysql_ and one using PDO.
...
Java: Static Class?
... but it provides insurance in case the constructor is accidentally invoked from within the class. It guarantees that the class will never be instantiated under any circumstances. This idiom is mildly counterintuitive, as the constructor is provided expressly so that it cannot be invoked. It is there...
How to deny access to a file in .htaccess
.../directives in the htaccess of subdirectories get applied superceding ones from the parent).
So you can have:
<Files "log.txt">
Order Allow,Deny
Deny from all
</Files>
For Apache 2.4+, you'd use:
<Files "log.txt">
Require all denied
</Files>
In an htaccess fi...
GitHub Error Message - Permission denied (publickey)
...
The helping part is using ssh -vT git@github.com from the Github help page to help debug what key your repo is using. I suggest you add it in your answer.
– MaximeBernard
Dec 22 '15 at 9:54
...
UI Terminology: Logon vs Login [closed]
...se enter your login credentials."
"I see three logons but only two logoffs from this user."
The corresponding verbs are each two words:
"Please log in to see your reputation."
"You must log off and talk to a human."
Update: according to dictionary.com, the various definitions of login are al...
List directory tree structure in python?
...nswers above, but for python3, arguably readable and arguably extensible:
from pathlib import Path
class DisplayablePath(object):
display_filename_prefix_middle = '├──'
display_filename_prefix_last = '└──'
display_parent_prefix_middle = ' '
display_parent_prefix_last...
Error while pull from git - insufficient permission for adding an object to repository database .git
...ssuming @ChrisHayes is right about an accidental sudo, this should fix it. From inside your repository:
sudo chown -R $USER:$USER "$(git rev-parse --show-toplevel)/.git"
Update: for those of you getting the illegal group name error, try this instead:
sudo chown -R $(id -u):$(id -g) "$(git rev-pa...
Do Google refresh tokens expire?
...alidates the oldest outstanding token without any user-visible warning. (from developers.google.com/accounts/docs/OAuth2)
– bazik
Mar 31 '14 at 11:46
...