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Iterate an iterator by chunks (of n) in Python? [duplicate]
...EFG', 'x') --> ABC DEF Gxx"
args = [iter(iterable)] * n
return izip_longest(fillvalue=fillvalue, *args)
It will fill up the last chunk with a fill value, though.
A less general solution that only works on sequences but does handle the last chunk as desired is
[my_list[i:i + chunk_size...
Is there a way to measure how sorted a list is?
...are distance from the sorted state is imaginable:
#! ruby
d = -> a { a.zip( a.sort ).map { |u, v| ( u - v ) ** 2 }.reduce( :+ ) ** 0.5 }
a = 8, 7, 3, 4, 10, 9, 6, 2, 5, 1
d.( a ) #=> 15.556
d.( a.sort ) #=> 0.0
d.( a.sort.reverse ) # => 18.166 is the worrst case
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What version of javac built my jar?
...
JAR=something.jar ; unzip -p $JAR `unzip -l $JAR | grep '\.class$' | head -1` | file -
– Randall Whitman
May 18 '15 at 22:24
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How to include package data with setuptools/distribute?
...the behaviour of files in package_data being automatically included in the ZIP if you have no existing MANIFEST.in file, and only if you're using 2.7+.
– Johnus
Oct 19 '16 at 23:17
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How to install a private NPM module without my own registry?
...a) a folder containing a program described by a package.json file
b) a gzipped tarball containing (a)
c) a url that resolves to (b)
d) a <name>@<version> that is published on the registry with (c)
e) a <name>@<tag> that points to (d)
f) a <name> that has ...
Ship an application with a database
.../databases/my_database.db
(Optionally, you may compress the database in a zip file such as assets/databases/my_database.zip. This isn't needed, since the APK is compressed as a whole already.)
Create a class, for example:
public class MyDatabase extends SQLiteAssetHelper {
private static fina...
List of tuples to dictionary
..."one": 1, "two":
2}:
dict(one=1, two=2)
dict({'one': 1, 'two': 2})
dict(zip(('one', 'two'), (1, 2)))
dict([['two', 2], ['one', 1]])
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Why there is no ForEach extension method on IEnumerable?
Inspired by another question asking about the missing Zip function:
20 Answers
20
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How to copy Java Collections list
...tp://www.java2s.com/Open-Source/Java-Document/6.0-JDK-Core/Collections-Jar-Zip-Logging-regex/java/util/Collections.java.htm
If you need a deep copy, you have to iterate over the items manually, using a for loop and clone() on each object.
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What's the best way to distribute Java applications? [closed]
...nload it if it's not already installed. You can send the exe file as is or zip it with possible dependencies (or let the program download the extra dependencies from the net on startup). It's also free, as in beer and speech, which may (or may not) be a good thing.
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