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Find the index of a dict within a list, by matching the dict's value
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If you need to fetch repeatedly from name, you should index them by name (using a dictionary), this way get operations would be O(1) time. An idea:
def build_dict(seq, key):
return dict((d[key], dict(d, index=index)) for (index, d) in enumerate(seq))
info_by_name = build_dict(lst, ke...
How to replace a character by a newline in Vim
I'm trying to replace each , in the current file by a new line:
11 Answers
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What is meant by immutable?
...completely explicit that the field is immutable. Right now it's immutable by convention
– JaredPar
Nov 11 '08 at 0:15
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Efficiency of purely functional programming
... an algorithm in the pure Lisp that runs in O(n log n) time (based on work by Ben-Amram and Galil [1992] about simulating random access memory using only pointers). Pippenger also establishes that there are algorithms for which that is the best you can do; there are problems which are O(n) in the im...
SqlAlchemy - Filtering by Relationship Attribute
...ient.query.join(Patient.mother, aliased=True)\
.filter_by(phenoscore=10)
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Why does Google prepend while(1); to their JSON responses?
...he URL via a <script> tag. The URL is visited with your cookies, and by overriding the global array constructor or accessor methods they can have a method called whenever an object (array or hash) attribute is set, allowing them to read the JSON content.
The while(1); or &&&BLAH&a...
An App ID with Identifier '' is not available. Please enter a different string
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update
As of Xcode 8, iOS Team Provision Profile Managed by Xcode are now updated by Xcode automatically and correctly. They are not even listed at the Developer Portal, but generated on-the-flight.
However, the solution proposed below will still work. I've switched to using the ...
How to set selected item of Spinner by value, not by position?
I have a update view, where I need to preselect the value stored in database for a Spinner.
25 Answers
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SQLite - increase value by a certain number
is it possible to increase a certain value in a table by a certain number without reading last value and afterwards updating it?
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Get an element by index in jQuery
... and the index of an li tag in that list. I have to get the li element by using that index and change its background color. Is this possible without looping the entire list? I mean, is there any method that could achieve this functionality?
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