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Why doesn't django's model.save() call full_clean()?
... As of Django 2.2.3, this causes an issue with the basic authentication system. You will get a ValidationError: Session with this Session key already exists. To avoid this, you need to add an if-statement for sender in list_of_model_classes to prevent the signal from overriding Django's default a...
Which exception should I raise on bad/illegal argument combinations in Python?
... @RayLuo you may have sanity-checked what the video's saying and converted it into a palateable, sensible alternative message, but that is what the video says, and it's what someone who doesn't have a lot of experience and common sense will come away with.
– Rob Grant...
How do I preserve line breaks when using jsoup to convert html to plain text?
I have the following code:
15 Answers
15
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How to do URL decoding in Java?
In Java, I want to convert this:
9 Answers
9
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When is memoization automatic in GHC Haskell?
... little tricky when you use syntactic sugar like in your example, so let's convert these to equivalent desugared syntax:
m1' = (!!) (filter odd [1..]) -- NB: See below!
m2' = \n -> (!!) (filter odd [1..]) n
(Note: The Haskell 98 report actually describes a left operator section li...
LINQ to Entities only supports casting EDM primitive or enumeration types with IEntity interface
...n the interface type. EF doesn't know about the interface type so it can't convert it to SQL. With the class constraint the type inferred is the DbSet<T> type which EF knows what to do with.
– jwize
Nov 12 '15 at 20:58
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Convert a list to a dictionary in Python
Let's say I have a list a in Python whose entries conveniently map to a dictionary. Each even element represents the key to the dictionary, and the following odd element is the value
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Enable binary mode while restoring a Database from an SQL dump
...practical note, I got around this after creating the file in Powershell by converting the generated file to UTF-8 using Notepad++.
– Peter Majeed
Jan 21 '17 at 14:05
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Pros and Cons of SQLite and Shared Preferences [closed]
...plain old Java Objects as RealmObjects and store your data there. You can convert selcted queries into JSON files. No need to parse the entire data base.
Check this link:
https://realm.io/news/introducing-realm/
share
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What is the common header format of Python files?
...uped in the standard way, eg:
import os # standard library
import sys
import requests # 3rd party packages
import mypackage.mymodule # local source
import mypackage.myothermodule
ie. three groups of imports, with a single blank line between them. Within each group, imports are...