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Convert generator object to list for debugging [duplicate]
...
Simply call list on the generator.
lst = list(gen)
lst
Be aware that this affects the generator which will not return any further items.
You also cannot directly call list in IPython, as it conflicts with a command for listing l...
What is the point of “final class” in Java?
...hat it's immutable, because Strings are. As a result of this, I know I can call any method on the String object safely, and not change the passed String. If I were to extend String, and change the implementation of substring to change the actual String, then the String object you expected to be immu...
What is the reason why “synchronized” is not allowed in Java 8 interface methods?
...tart() {
System.out.println("I am " + this.getClass() + ". sonStarting,calling parent now ... ");
super.parentStart();
System.out.println("I am " + this.getClass() + ". sonFinished");
}
}
public class SonSync2 extends ParentSync {
public void sonStart() {
System.out.println("I am...
Automating the InvokeRequired code pattern
...ontrol.Invoke(action);
} else {
action();
}
}
And can be called like this
richEditControl1.InvokeIfRequired(() =>
{
// Do anything you want with the control here
richEditControl1.RtfText = value;
RtfHelpers.AddMissingStyles(richEditControl1);
});
There is no need ...
Activate a virtualenv via fabric as deploy user
I want to run my fabric script locally, which will in turn, log into my server, switch user to deploy, activate the projects .virtualenv, which will change dir to the project and issue a git pull.
...
How can I index a MATLAB array returned by a function without first assigning it to a local variable
...When you perform an indexing operation using (), you are actually making a call to the subsref function. So, even though you can't do this:
value = magic(5)(3, 3);
You can do this:
value = subsref(magic(5), struct('type', '()', 'subs', {{3, 3}}));
Ugly, but possible. ;)
In general, you just h...
Creating a dictionary from a csv file?
...
Open the file by calling open and then csv.DictReader.
input_file = csv.DictReader(open("coors.csv"))
You may iterate over the rows of the csv file dict reader object by iterating over input_file.
for row in input_file:
print(row)
...
How to implement the --verbose or -v option into a script?
...:
def verboseprint(*args):
# Print each argument separately so caller doesn't need to
# stuff everything to be printed into a single string
for arg in args:
print arg,
print
else:
verboseprint = lambda *a: None # do-nothing function
(Yes, ...
Script to get the HTTP status code of a list of urls?
... Adding parallelism to it is a no brainer in bash if you use xargs for the call.
Here the code:
xargs -n1 -P 10 curl -o /dev/null --silent --head --write-out '%{url_effective}: %{http_code}\n' < url.lst
-n1: use just one value (from the list) as argument to the curl call
-P10: Keep 10 curl p...
How do I check if a variable exists?
...us = current, it doesn't mean you "don't know your variables" on the first call. And writing an extra line of code to initialize previous=null outside the draw routine doesn't mean you "know your variables" any better.
– Dave
Aug 25 '12 at 23:57
...