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Capturing Groups From a Grep RegEx
... use grep multiple times within a pipeline to first reduce your line to a known format, and then to extract just the bit you want. (Although tools like cut and sed are far better at this).
Suppose for the sake of argument that your pattern was a bit simpler: [0-9]+_([a-z]+)_ You could extract this ...
What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
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@JamesMcNellis It is now, so clear the comments, to remove the noise
– daramarak
Sep 10 '13 at 11:08
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Google Chrome Extensions - Can't load local images with CSS
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@ariera's link is here now: developer.chrome.com/extensions/manifest/…
– Ben
Jan 11 '17 at 15:08
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AngularJS : Factory and Service? [duplicate]
...ass this service into your controller, those properties on the object will now be available in that controller through your factory. (Hypothetical Scenario)
Singleton and will only be created once
Reusable components
Factory are a great way for communicating between controllers like sharing data.
C...
`staticmethod` and `abc.abstractmethod`: Will it blend?
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abstractstaticmethod Deprecated since version 3.3: It is now possible to use staticmethod with abstractmethod(), making this decorator redundant. link
– irakli khitarishvili
Dec 24 '15 at 9:59
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Installing Python 3 on RHEL
...t instance to the system default with an altinstall:
$ make altinstall
Now if you want an alternative installation directory, you can pass --prefix to the configurecommand.
Example: for 'installing' Python in /opt/local, just add --prefix=/opt/local.
After the make install step: In order to u...
Importing variables from another file?
...iables from file1 without flooding file2's namespace, use:
import file1
#now use file1.x1, file2.x2, ... to access those variables
To import all variables from file1 to file2's namespace( not recommended):
from file1 import *
#now use x1, x2..
From the docs:
While it is valid to use from ...
What's the best way to parse command line arguments? [closed]
...hon 2.3 thru 2.6. For python 2.7+ it is not the best answer as argparse is now part of the standard library and optparse deprecrated.
– matt wilkie
Feb 28 '11 at 19:47
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What is SQL injection? [duplicate]
...erabilities because attackers can send values to an application that they know will be interpolated into a SQL string. By being very clever, they can manipulate the result of queries, reading data or even changing data that they shouldn't be allowed to do.
Example in PHP:
$password = $_POST['pass...
Syntax error on print with Python 3 [duplicate]
..., print became a function. This means that you need to include parenthesis now like mentioned below:
print("Hello World")
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