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Python progression path - From apprentice to guru
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One good way to further your Python knowledge is to dig into the source code of the libraries, platforms, and frameworks you use already.
For example if you're building a site on Django, many questions that might stump you c...
Bubble Sort Homework
..."index".
for i in range(0, length):
The range command can also take just one argument (named stop). In that case, you get a list of all the integers from 0 to that argument.
for i in range(length):
The Python Style Guide recommends that variables be named in lowercase with underscores. This is a...
How to trim whitespace from a Bash variable?
...e single expression could be made conditional, with |, so as to keep it as one single expression, rather than several.
– Victor Zamanian
Apr 9 '14 at 13:59
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Why are C# 4 optional parameters defined on interface not enforced on implementing class?
...describe, and a hundred classes that implement it. Then you decide to make one of the parameters of one of the interface's methods optional. Are you suggesting that the right thing to do is for the compiler to force the developer to find every implementation of that interface method, and make the pa...
How do I set the time zone of MySQL?
On one server, when I run:
19 Answers
19
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Case conventions on element names?
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@WarFox I don't think anyone has made an official recommendation. IME, the formats which come from w3c for interoperability tend to be in the hyphen style; formats which come from Microsoft and some others tend to be tightly coupled to an implementat...
Executors.newCachedThreadPool() versus Executors.newFixedThreadPool()
... terminates
due to a failure during execution
prior to shutdown, a new one will take
its place if needed to execute
subsequent tasks. The threads in the
pool will exist until it is explicitly
shutdown.
newCachedThreadPool
Creates a thread pool that creates new
threads as needed,...
Assignment inside lambda expression in Python
...list of objects and I want to remove all objects that are empty except for one, using filter and a lambda expression.
1...
Multiple GitHub Accounts & SSH Config
... needed to make to get this to work. In trying to get two profiles set up, one for personal and one for work, my ~/.ssh/config was roughly as follows:
Host me.github.com
HostName github.com
PreferredAuthentications publickey
IdentityFile ~/.ssh/me_rsa
Host work.github.com
HostName ...
Is there a bash command which counts files?
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This simple one-liner should work in any shell, not just bash:
ls -1q log* | wc -l
ls -1q will give you one line per file, even if they contain whitespace or special characters such as newlines.
The output is piped to wc -l, which co...