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List comprehension: Returning two (or more) items for each item
...t;> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f = lambda x: x + 2
g = lambda x: x ** 2
def fg(x):
yield f(x)
yield g(x)
print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in range(3)))',
s...
How can I find the version of the Fedora I use?
...
11 Answers
11
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Removing duplicate rows from table in Oracle
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312
Use the rowid pseudocolumn.
DELETE FROM your_table
WHERE rowid not in
(SELECT MIN(rowid)
FROM ...
maven-dependency-plugin (goals “copy-dependencies”, “unpack”) is not supported by m2e
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164
It seems to be a known issue. You can instruct m2e to ignore this.
Option 1: pom.xml
Add th...
Kotlin: how to pass a function as parameter to another?
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10 Answers
10
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PyLint, PyChecker or PyFlakes? [closed]
...ngren modified by e-satis
import sys, time
stdout = sys.stdout
BAILOUT = 16
MAX_ITERATIONS = 1000
class Iterator(object) :
def __init__(self):
print 'Rendering...'
for y in xrange(-39, 39):
stdout.write('\n')
for x in xrange(-39, 39):
...
Fast Linux File Count for a large number of files
... in a particular directory when there are a very large number of files ( > 100,000).
18 Answers
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How can I get the MD5 fingerprint from Java's keytool, not only SHA-1?
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10 Answers
10
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How do I clone a range of array elements to a new array?
I have an array X of 10 elements. I would like to create a new array containing all the elements from X that begin at index 3 and ends in index 7. Sure I can easily write a loop that will do it for me but I would like to keep my code as clean as possible. Is there a method in C# that can do it for m...