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What killed my process and why?
... /var/log/kern.log contained a lot of info about the termination. -Thanks for the pointer.
– sbq
Apr 7 '09 at 17:49
7
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Design Patterns: Abstract Factory vs Factory Method
...ne method of types it produces. (This is complicated refer to next diagram for better real-life example).
Example From The .NET Framework
DbFactoriesProvider is a Simple Factory as it has no sub-types. The DbFactoryProvider is an abstract factory as it can create various related database objects...
Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...is creates four count columns, but how to get only one? (The question asks for "an additional column" and that's what I would like too.)
– Jaan
Jul 22 '15 at 6:58
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ggplot with 2 y axes on each side and different scales
...
I concur with Andreas - sometimes (such as now, for me) a client wants two sets of data on the same plot, and does not want to hear me talk about Plotting Theory. I either have to convince them to not want that anymore (not always a battle I want to wage), or tell them "t...
Unit tests vs Functional tests
...lding of a house. While this analogy isn't quite correct, we can extend it for the purposes of understanding the difference between unit and functional tests.
Unit testing is analogous to a building inspector visiting a house's construction site. He is focused on the various internal systems of the ...
What is the most pythonic way to check if an object is a number?
...ber
... from decimal import Decimal
... from fractions import Fraction
... for n in [2, 2.0, Decimal('2.0'), complex(2, 0), Fraction(2, 1), '2']:
... print(f'{n!r:>14} {isinstance(n, Number)}')
2 True
2.0 True
Decimal('2.0') True
(2+0j) True
Fraction(2, 1)...
UICollectionView Set number of columns
...greater control over the layout of your UICollectionView, without the need for subclassing it:
collectionView:layout:insetForSectionAtIndex:
collectionView:layout:minimumInteritemSpacingForSectionAtIndex:
collectionView:layout:minimumLineSpacingForSectionAtIndex:
collectionView:layout:referenceSiz...
REST HTTP status codes for failed validation or invalid duplicate
...EST-based API and have come to the point where i'm specifying status codes for each requests.
9 Answers
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What's the purpose of git-mv?
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git mv oldname newname
is just shorthand for:
mv oldname newname
git add newname
git rm oldname
i.e. it updates the index for both old and new paths automatically.
share
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App Inventor 2 中文网原创内容 · App Inventor 2 中文网
... arguments to +：The operation + cannot accept the arguments:, [””], [81]
【已解决】Error 1103: Unable to complete the given request with the text
【已解决】Your device does not have a scanning application installed.
【已解决】The operation is list empty? cannot accept the ...