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Difference between BeautifulSoup and Scrapy crawler?
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I think both are good... im doing a project right now that use both. First i scrap all the pages using scrapy and save that on a mongodb collection using their pipelines, also downloading the images that exists on the page.
After that i use BeautifulSoup4 to make a pos-proce...
How to tell if a string is not defined in a Bash shell script
...not, you can do the following:
isdefined=0
${mystr+ export isdefined=1}
now, if isdefined=0 then the variable was undefined, if isdefined=1 the variable was defined
This way of checking variables is better than the above answer because it is more elegant, readable, and if your bash shell was con...
Maven plugins can not be found in IntelliJ
...ct=ro.isdc.wro4j:wro4j-maven-plugin:1.8.0
After this change need to let know the Idea about new available artifacts. This can be done in "Settings > Maven > Repositories", select there your "Local" and simply click "Update".
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How to permanently add a private key with ssh-add on Ubuntu? [closed]
... a specific key and if it doesn't find it, then it adds it with ssh-add.
Now the first time I open my terminal I'm asked for the passwords for my private keys and I'm not asked again until I reboot(or logout - I haven't checked) my computer.
Since I have a bunch of keys I store the output of ssh-...
What's the best way of implementing a thread-safe Dictionary?
... the enumerating of the members. The problem with this is that you don't know if the action passed to that function calls some member of your dictionary (that would result in a deadlock). Exposing the synchronization object allows the consumer to make those decisions and doesn't hide the deadlock ...
Node.js setting up environment specific configs to be used with everyauth
... as our configuration file. You can parse these options with optparse-js.
Now you have some core modules that are depending on this config file. When you write them as such:
var Workspace = module.exports = function(config) {
if (config) {
// do something;
}
}
(function () {
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What is the difference between task and thread?
...vide a rudimentary example of threads working to complete a task? I don't know if the threads are doing work that are independant between each others or do they do some teamwork calculation?
– pensum
Feb 18 at 2:04
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Good Linux (Ubuntu) SVN client [closed]
... long long time ago I was one of the developers for RabbitVCS (previously known as NautilusSvn).
If you use Nautilus then you might be interested in RabbitVCS (mentioned earlier by Trevor Bramble). It's an unadulterated clone of TortoiseSVN for Nautilus written in Python. While there's still a lot ...
Deleting elements from std::set while iterating
...M. It does in C++11. In C++17, it takes iterator (const_iterator in C++11) now.
– tartaruga_casco_mole
Jan 23 '18 at 4:15
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jQuery check if an input is type checkbox?
... case sensitive: jsfiddle.net/gtza0uuL. It is not with .prop, but I don't know if that can be gauranteed. Note: you can't just do .toLowerCase() either because 'type' may be undefined.
– xr280xr
Jun 29 '15 at 22:49
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