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What's the best way of scraping data from a website? [closed]
...s bs
request = requests.get("http://foo.bar")
soup = bs(request.text)
some_elements = soup.find_all("div", class_="myCssClass")
Some will prefer xpath parsing or jquery-like pyquery, lxml or something else.
When the data you want is produced by some JavaScript, the above won't work. You either n...
How expensive is RTTI?
...ime if you can afford to do
if (typeid(a) == typeid(b)) {
B* ba = static_cast<B*>(&a);
etc;
}
instead of
B* ba = dynamic_cast<B*>(&a);
if (ba) {
etc;
}
The former involves only one comparison of std::type_info; the latter necessarily involves traversing an inheritanc...
Check if a class is derived from a generic class
...oImplementor, IGenericFooInterface<T>
{
}
[Test]
public void Should_inherit_or_implement_non_generic_interface()
{
Assert.That(typeof(FooImplementor)
.InheritsOrImplements(typeof(IFooInterface)), Is.True);
}
[Test]
public void Should_inherit_or_implement_generic_interface()
{
...
Transaction isolation levels relation with locks on table
...edited Feb 27 '19 at 11:22
nazar_art
12.6k3535 gold badges111111 silver badges179179 bronze badges
answered Apr 23 '13 at 6:26
...
How to explain callbacks in plain english? How are they different from calling one function from ano
...n the call-back-function for further processing. example: func1(a, callback_func){ v = a + 1} and there is predefined call back function: callback_func(v){return v+1;} this will increase a by 2, so if you pass argument of integer 4 in "a" parameter, the callback_funct will return 6 as result. Read t...
What is the difference between SAX and DOM?
...rser,but use 9g memory when use DOM parser.
– zhiyuan_
Nov 2 '18 at 3:55
|
show 1 more comment
...
Single Page Application: advantages and disadvantages [closed]
...hy maintain state is more comphortable with SPA?
– VB_
Feb 18 '14 at 19:13
4
You cannot easily in...
How can I record a Video in my Android App.?
...r.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
...
What are the recommendations for html tag?
...oo=bar">path fragment</a>
where ${uri} basically translates to $_SERVER['REQUEST_URI'] in PHP, ${pageContext.request.requestURI} in JSP, and #{request.requestURI} in JSF. Noted should be that MVC frameworks like JSF have tags reducing all this boilerplate and removing the need for <bas...
Difference between CouchDB and Couchbase
...base Server:
no RESTful API (only for views, not for CRUD operations)
no _changes feed
no peer-to-peer replication
no CouchApps
no Futon (there is a different administration interface available)
no document IDs
no notion of databases (there are only buckets)
no replication between a CouchDB databa...