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How to validate IP address in Python? [duplicate]
...at's the best way to validate that an IP entered by the user is valid? It comes in as a string.
11 Answers
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What is the largest Safe UDP Packet Size on the Internet
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This article describes maximum transmission unit (MTU) http://en.wikipedia.org/wiki/Maximum_transmission_unit. It states that IP hosts must be able to process 576 bytes for an IP packet. However, it notes the minumum is 68. RFC 791: "Every internet module must be able to forward...
What exactly does an #if 0 … #endif block do?
...entire thing. And the #if 0s will nest with each other, like so:
#if 0
pre_foo();
#if 0
foo();
bar(x, y); /* x must not be NULL */
baz();
#endif
quux();
#endif
Although of course this can get a bit confusing and become a maintenance headache if not commented properly.
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How do I get jQuery to select elements with a . (period) in their ID?
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SqlException from Entity Framework - New transaction is not allowed because there are other threads
...ach (RivWorks.Model.NegotiationAutos.Client client in clientList)
{
var companyFeedDetailList = from a in _dbRiv.AutoNegotiationDetails where a.ClientID == client.ClientID select a;
// ...
}
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What should I name a table that maps two tables together? [closed]
...oducts and another category for recipe. for both tables we will have recipe_categories and product_categories, and since we can't just "categories" table name for both tables, in order to prevent the conflict, the junction tables for product and recipe will be "recipe_recipe_categories" and "product...
How to properly create composite primary keys - MYSQL
...is a gross oversimplification of an intense setup I am working with. table_1 and table_2 both have auto-increment surrogate primary keys as the ID. info is a table that contains information about both table_1 and table_2 .
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How to convert an array to object in PHP?
...son Medina pointed out, a really clean solution is to use the built-in json_ functions:
$object = json_decode(json_encode($array), FALSE);
This also (recursively) converts all of your sub arrays into objects, which you may or may not want. Unfortunately it has a 2-3x performance hit over the loop...
Python nonlocal statement
...so that it looks more like the idioms of languages with closures.
def make_counter():
count = 0
def counter():
nonlocal count
count += 1
return count
return counter
Obviously, you could write this as a generator, like:
def counter_generator():
count = 0
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how to make a whole row in a table clickable as a link?
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edited Jun 20 at 9:12
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answered Jun 17 '13 at 12:53
Ahmed MasudAhmed Ma...