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Error when trying to obtain a certificate: The specified item could not be found in the keychain
...nal)
Allow access to export key
Open Terminal and go to exported directory
Extract key from p12 container
Be careful as the .pem private key is no longer password protected)
$ openssl pkcs12 -in Certificates.p12 -out Certificates.pem -nodes
Enter Import Password: ********************
MAC verifie...
mongodb: insert if not exists
...u want to do an "upsert". MongoDB has built-in support for this. Pass an extra parameter to your update() call: {upsert:true}. For example:
key = {'key':'value'}
data = {'key2':'value2', 'key3':'value3'};
coll.update(key, data, upsert=True); #In python upsert must be passed as a keyword argumen...
Difference between the Apache HTTP Server and Apache Tomcat? [closed]
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True. And many people still use an extra Apache setup besides their Tomcat.. which is unnecessary in most cases.
– Marco Schoolenberg
Jan 4 '17 at 16:20
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In Django - Model Inheritance - Does it allow you to override a parent model's attribute?
...ace and for every LongNamedRestaurant. LongNamedRestaurant just creates an extra table with the food_type and a reference to the place table.
If you do Place.objects.all(), you also get every place that is a LongNamedRestaurant, and it will be an instance of Place (without the food_type). So Place....
Best way to include CSS? Why use @import?
...faster and better), and nearly all browsers support link
import loads any extra css files one-by-one (slower), and could give you Flash Of Unstyled Content
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Peak-finding algorithm for Python/SciPy
...ers width, threshold, distance and above all prominence to get a good peak extraction.
According to my tests and the documentation, the concept of prominence is "the useful concept" to keep the good peaks, and discard the noisy peaks.
What is (topographic) prominence? It is "the minimum height nec...
Real-world applications of zygohistomorphic prepromorphisms
...0/functional-pearl-maximally-dense-segments/
I'd nominate the authors for extra credit as they've avoided the use of the fixed-point Mu functor.
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Check if all elements in a list are identical
... are distinct, it will still complete the entire search. it also uses O(k) extra space where k is the number of distinct elements in the list.
– aaronasterling
Oct 2 '10 at 7:58
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How to create a fixed-size array of objects
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This question has already been answered, but for some extra information at the time of Swift 4:
In case of performance, you should reserve memory for the array, in case of dynamically creating it, such as adding elements with Array.append().
var array = [SKSpriteNode]()
array....
How can I see normal print output created during pytest run?
...ain conditions, along with the summary of the tests it prints by default.
Extra summary info can be shown using the '-r' option:
pytest -rP
shows the captured output of passed tests.
pytest -rx
shows the captured output of failed tests (default behaviour).
The formatting of the output is pre...