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How to pass a user defined argument in scrapy spider
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Spider arguments are passed in the crawl command using the -a option. For example:
scrapy crawl myspider -a category=electronics -a domain=system
Spiders can access arguments as attributes:
class MySpider(scrapy.Spider):
name = 'myspider'
def __init__(self,...
Chrome DevTools Devices does not detect device when plugged in
...
To get the functionality up and running:
Follow steps at https://developers.google.com/chrome-developer-tools/docs/remote-debugging
Install Windows USB driver http://developer.samsung.com/android/tools-sdks/Samsung-Android-USB-Driver-for-Windows
Insta...
How to get domain URL and application name?
...;title>SO question 2204870</title>
<base href="${fn:substring(url, 0, fn:length(url) - fn:length(uri))}${req.contextPath}/">
<script src="js/global.js"></script>
<link rel="stylesheet" href="css/global.css">
</head>
<body>
...
How do I pass an extra parameter to the callback function in Javascript .filter() method?
I want to compare each string in an Array with a given string. My current implementation is:
8 Answers
...
scp with port number specified
...ns which modify the way getopt will do the parsing (the options and the optstring in the SYNOPSIS), and the parameters which are to be parsed (parameters in the SYNOPSIS). The second part will start at
the first non-option parameter that is not an option argument, or after the first occurr...
How do exceptions work (behind the scenes) in c++
...ception, @object
.size _ZTS11MyException, 14
_ZTS11MyException:
.string "11MyException"
The typeinfo data.
.section .eh_frame,"a",@progbits
.Lframe1:
.long .LECIE1-.LSCIE1
.LSCIE1:
.long 0x0
.byte 0x1
.string "zPL"
.uleb128 0x1
.sleb128 -4
.byte ...
Need to handle uncaught exception and send log file
... app
}
}
(3) Extract log (I put this an my SendLog Activity):
private String extractLogToFile()
{
PackageManager manager = this.getPackageManager();
PackageInfo info = null;
try {
info = manager.getPackageInfo (this.getPackageName(), 0);
} catch (NameNotFoundException e2) {
}
St...
Change key pair for ec2 instance
...e it in the same subnet, otherwise you will have to terminate the instance and create it again. - see here
Attach volume A to the new micro instance, as /dev/xvdf (or /dev/sdf)
SSH to the new micro instance and mount volume A to /mnt/tmp
$ sudo mount /dev/xvdf1 /mnt/tmp
Copy ~/.ssh/authorized_keys ...
How to send data to local clipboard from a remote SSH session
...cting this thread because I've been looking for the same kind of solution, and I've found one that works for me. It's a minor modification to a suggestion from OSX Daily.
In my case, I use Terminal on my local OSX machine to connect to a linux server via SSH. Like the OP, I wanted to be able to tra...
Why do I get “'property cannot be assigned” when sending an SMTP email?
...r from email address is from gmail.
static void SendEmail()
{
string mailBodyhtml =
"<p>some text here</p>";
var msg = new MailMessage("from@gmail.com", "to1@gmail.com", "Hello", mailBodyhtml);
msg.To.Add("to2@gmail.com");
msg.IsBodyHtml =...