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How do I stop Skype from using HTTP or HTTPS ports 80 and 443? [closed]
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@Venkatesh Skype is known for his great Firewall penetrating abillity and much more. If Skype is not able to find an open Port it will try to use port 80. Cause… In 99% of Company Infrastructures and Homeoffices Port 80 is open for Browsers on ...
What is a raw type and why shouldn't we use it?
...stException!
// java.lang.Boolean cannot be cast to java.lang.String
Now we run into trouble at run-time, because names contains something that isn't an instanceof String.
Presumably, if you want names to contain only String, you could perhaps still use a raw type and manually check every add ...
Git for beginners: The definitive practical guide
...ignore your current location and use the repository at $GIT_DIR. I should know, I lost an hour to that yesterday.
– sanmiguel
Mar 1 '12 at 12:17
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How do I list all files of a directory?
...ob.glob("../train/*.png") will give me an array of my paths, as long as I know the name of the folder. So cool!
– Jennifer Crosby
Mar 14 at 4:06
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Why is x86 ugly? Why is it considered inferior when compared to others? [closed]
...fe to begin execution of the 2nd add before the outcome of the 1st add is known.
On a RISC architecture, the add instruction would specify the input operands and the output register(s), and everything about the operation would take place using only those registers. This makes it much easier to dec...
How do I find the duplicates in a list and create another list with them?
...q):
seen = set()
seen_add = seen.add
# adds all elements it doesn't know yet to seen and all other to seen_twice
seen_twice = set( x for x in seq if x in seen or seen_add(x) )
# turn the set into a list (as requested)
return list( seen_twice )
a = [1,2,3,2,1,5,6,5,5,5]
list_duplicates(a...
What is the difference between trie and radix trie data structures?
...e letter, while in a PATRICIA tree (or radix tree) you store whole words.
Now, assume you have the words hello, hat and have. To store them in a trie, it would look like:
e - l - l - o
/
h - a - t
\
v - e
And you need nine nodes. I have placed the letters in the nodes, but in ...
How to validate an email address using a regular expression?
...me web page as was the address.
Confirmation tokens are the only way to know you got the address of the person entering it. This is why most mailing lists now use that mechanism to confirm sign-ups. After all, anybody can put down president@whitehouse.gov, and that will even parse as legal, but it...
What is the difference between Strategy pattern and Dependency Injection?
...e trying to achieve. The Strategy pattern is used in situations where you know that you want to swap out implementations. As an example, you might want to format data in different ways - you could use the strategy pattern to swap out an XML formatter or CSV formatter, etc.
Dependency Injection is d...
How can I list the contents of a directory in Python?
...go, pathlib has been added to Python. My preferred way to list a directory now usually involves the iterdir method on Path objects:
from pathlib import Path
print(*Path("/home/username/www/").iterdir(), sep="\n")
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