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Django filter versus get for single object?
... this with get().
Finally, the first option is both shorter and omits the extra temporary variable - only a minor difference but every little helps.
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Understanding __get__ and __set__ and Python descriptors
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Why do I need the descriptor class?
It gives you extra control over how attributes work. If you're used to getters and setters in Java, for example, then it's Python's way of doing that. One advantage is that it looks to users just like an attribute (there's no change in sy...
How to display pandas DataFrame of floats using a format string for columns?
... think you'll have to pre-modify the dataframe (converting those floats to strings):
import pandas as pd
df = pd.DataFrame([123.4567, 234.5678, 345.6789, 456.7890],
index=['foo','bar','baz','quux'],
columns=['cost'])
df['foo'] = df['cost']
df['cost'] = df['cost']...
Throwing exceptions from constructors
...attached has an outdated hyperlink. To fix it wants to change exactly one character, replacing "#faq-17.2" with "#faq-17.8" in the URL. However, Stackoverflow's software requires that an edit submitted by a low-reputation user like me change at least six characters. Pretty obviously, the broken l...
C# 4.0: Can I use a TimeSpan as an optional parameter with a default value?
...following types: bool, byte, char, double, float, int, long, sbyte, short, string, uint, ulong, ushort.
The type object.
The type System.Type.
An enum type.
(provided it has public accessibility and the types in which it is nested (if any) also have public accessibility)
Single-dimensional...
Can someone explain the right way to use SBT?
...error: cannot resolve symbol
val response = Http("http://example.com").asString
...
}
However this will error saying missing import scalaj.http._. How is this possible when we, right above, added scalaj-http to libraryDependencies? Furthermore, why does it work when, instead, we add the depend...
How to format numbers as currency string?
...t. I'd like a function which takes a float as an argument and returns a string formatted like this:
66 Answers
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Converting List to List
... List<Integer> and I'd like to convert all the integer objects into Strings, thus finishing up with a new List<String> .
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Ways to circumvent the same-origin policy
...The MessageEvent has the type message, a data property which is set to the string value of the first argument provided to window.postMessage, an origin property corresponding to the origin of the main document in the window calling window.postMessage at the time window.postMessage was called, and a ...
What is the difference between DAO and Repository patterns?
...t exposes methods like
Collection<Permission> findPermissionsForUser(String userId)
User findUser(String userId)
Collection<User> findUsersForPermission(Permission permission)
All those are related to User (and security) and can be specified under then same DAO. This is not the case for...