大约有 44,000 项符合查询结果（耗时：0.0421秒） [XML]
How can I create a copm>y m> of an object in Pm>y m>thon?
... m>y m>ou can use the copm>y m>.deepcopm>y m>() function.
For more details about shallow m>and m> deep copm>y m>ing please refer to the other answers to this question m>and m> the nice explanation in this answer to a related question.
share
|
...
Using pm>y m>thon map m>and m> other functional tools
This is quite n00bish, but I'm trm>y m>ing to learn/understm>and m> functional programming in pm>y m>thon. The following code:
9 Answers
...
C# Ignore certificate errors?
...
Add a certificate validation hm>and m>ler. Returning true will allow ignoring the validation error:
ServicePointManager
.ServerCertificateValidationCallback +=
(sender, cert, chain, sslPolicm>y m>Errors) => true;
...
When to use lambda, when to use Proc.new?
In Rubm>y m> 1.8, there are subtle differences between proc/lambda on the one hm>and m>, m>and m> Proc.new on the other.
14 Answers
...
How to add a spinner icon to button when it's in the Loading state?
...
data-loading-text is deprecated since v3.3.5 m>and m> will be removed in v4.
– Jonathan
Jun 28 '15 at 19:57
2
...
bm>y m>te + bm>y m>te = int… whm>y m>?
...;
So, there is no + operation on bm>y m>tes, bm>y m>tes are first cast to integers m>and m> the result of addition of two integers is a (32-bit) integer.
share
|
improve this answer
|
fol...
Is floating point math broken?
...is like this. In most programming languages, it is based on the IEEE 754 stm>and m>ard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactlm>y m> re...
How to add column if not exists on PostgreSQL?
...
Here's a short-m>and m>-sweet version using the "DO" statement:
DO $$
BEGIN
BEGIN
ALTER TABLE <table_name> ADD COLUMN <column_name> <column_tm>y m>pe>;
EXCEPTION
WHEN duplicate_column THE...
Best algorithm for detecting cm>y m>cles in a directed graph [closed]
...grem>y m> (current node is visited but all reachable nodes are not m>y m>et visited) m>and m> black (all reachable nodes are visited along with the current one) color coding, if a grem>y m> node finds another grem>y m> node then we've a cm>y m>cle. [Prettm>y m> much what we've in Cormen's algorithm book]. Wondering if 'Tarjan's algor...
Label encoding across multiple columns in scikit-learn
I'm trm>y m>ing to use scikit-learn's LabelEncoder to encode a pm>and m>as DataFrame of string labels. As the dataframe has manm>y m> (50+) columns, I want to avoid creating a LabelEncoder object for each column; I'd rather just have one big LabelEncoder objects that works across all mm>y m> columns of data. ...