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How to pass a user defined argument in scrapy spider
...__init__(self, category='', **kwargs):
self.start_urls = [f'http://www.example.com/{category}'] # py36
super().__init__(**kwargs) # python3
def parse(self, response)
self.log(self.domain) # system
Taken from the Scrapy doc: http://doc.scrapy.org/en/latest/topics/spi...
How to convert image to byte array
... /// <summary>
/// Method that uses the ImageConverter object in .Net Framework to convert a byte array,
/// presumably containing a JPEG or PNG file image, into a Bitmap object, which can also be
/// used as an Image object.
/// </summary>
/// <param name="byteArray">...
Can unit testing be successfully added into an existing production project? If so, how and is it wor
...nent. If you have the time to do this, you'll build yourself a nice safety net, but you could have introduced subtle bugs along the way.
I've been involved with many projects which really needed unit tests from day one, and there is no easy way to get them in there, short of a complete rewrite, whi...
Laravel blank white screen
...ng the app/storage directory writable by Apache (either group writable to "www-data", "apache" or world-writable - that depends on your server setup.
Web Server User
On Ubuntu/Debian servers, your PHP may be running as user "www-data". On CentOS/RedHat/Fedora servers, you PHP may be running as use...
How to remove unreferenced blobs from my git repo
...e objects in the first place via a clone is stupid and a complete waste of network bandwidth.
Anyway... To solve your problem, you simply need to run 'git gc' with the --prune=now argument to disable that grace period and get rid of those unreferenced objects right away (safe only if no other g...
How do I uninstall a Windows service if the files do not exist anymore?
How do I uninstall a .NET Windows Service, if the service files does not exists anymore?
13 Answers
...
How many bytes does one Unicode character take?
... (probably because the font doesn't support them), go to http://codepoints.net/U+1F6AA (replace 1F6AA with the codepoint in hex) to see an image.
U+0061 LATIN SMALL LETTER A: a
Nº: 97
UTF-8: 61
UTF-16: 00 61
U+00A9 COPYRIGHT SIGN: ©
Nº: 169
UTF-8: C2 A9
UTF-16: 00 A9
U+00AE REGISTERED SI...
Is there a numpy builtin to reject outliers from a list
...centile corresponds to 1.2815σ and the 95% is 1.645σ (http://vassarstats.net/tabs.html?#z)
As a simple example:
import numpy as np
# Create some random numbers
x = np.random.normal(5, 2, 1000)
# Calculate the statistics
print("Mean= ", np.mean(x))
print("Median= ", np.median(x))
print("Max/Min...
How can I see the request headers made by curl when sending a request to the server?
...hake process when accessing website through HTTPS, such as curl -v https://www.example.com; second, it also prints the CONNECT request if you are visiting the site through HTTP proxy, such as curl --proxy my-proxy:8080 http://www.example.com. I believe it would help more users if some examples of th...
Can one AngularJS controller call another?
...
See this fiddle: http://jsfiddle.net/simpulton/XqDxG/
Also watch the following video: Communicating Between Controllers
Html:
<div ng-controller="ControllerZero">
<input ng-model="message" >
<button ng-click="handleClick(message);">L...