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Python Process Pool non-daemonic?
...procs)
result = pool.map(sleepawhile,
[randint(1, 5) for x in range(num_procs)])
# The following is not really needed, since the (daemon) workers of the
# child's pool are killed when the child is terminated, but it's good
# practice to cleanup after ourselves anyway.
p...
Git diff between current branch and master but not including unmerged master commits
... in gitrevisions[7]. However, "diff" is about comparing two endpoints, not ranges, and the range notations ("<commit>..<commit>" and "<commit>...<commit>") do not mean a range as defined in the "SPECIFYING RANGES" section in gitrevisions[7].
...
SQL “between” not inclusive
...ETWEEN which does include BOTH the lower value and the upper values in the range, but does not magically make a date the "beginning of" or "the end of".
BETWEEN should be avoided when filtering by date ranges.
Always use the >= AND < instead
SELECT * FROM Cases
WHERE (created_at >= '2...
Regex (grep) for multi-line search needed [duplicate]
...ome simple solution. Thanks ! @Kev The comma is used as a separator in AWK range pattern. See full explanation in section 7.1.3 Specifying Record Ranges with Patterns of AWK user guide
– Olivier
Nov 21 '16 at 11:12
...
Python: Why is functools.partial necessary?
... return partial(math.sin, x)
Iter = 10**7
start = time.clock()
for i in range(0, Iter):
l = make_lambda()
stop = time.clock()
print('lambda creation time {}'.format(stop - start))
start = time.clock()
for i in range(0, Iter):
l()
stop = time.clock()
print('lambda execution time {}'.forma...
How do I interpret precision and scale of a number in a database?
...gt; could be truncated into 123.46 (p=5,s=2)
123450 (p=6,s=0) => out of range
Note that the range is generally defined by the precision: |value| < 10^p ...
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Shared-memory objects in multiprocessing
...e = t
a = SharedNumpyMemManager.getArray(shm_hdl)
for j in range(INNER_LOOP):
a[i] = i
class Parallel_Dummy_PF:
def __init__(self, N):
self.N = N
self.arrayHdl = SharedNumpyMemManager.createArray(self.N, ctype=ctypes.c_double) ...
Mercurial - all files that changed in a changeset?
... a single changeset, but if you'd like to get all the files modified for a range of changesets, you can do
hg status --rev 1 --rev 10 -m
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[] and {} vs list() and dict(), which is better?
...ons can be done using the English names as well. Example: list(i for i in range(10) if i % 2)
– Zags
Jun 13 '14 at 19:37
4
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Sum a list of numbers in Python
...
Question 2:
That use of sum should work fine. The following works:
a = range(10)
# [0,1,2,3,4,5,6,7,8,9]
b = sum(a)
print b
# Prints 45
Also, you don't need to assign everything to a variable at every step along the way. print sum(a) works just fine.
You will have to be more specific about ex...