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How to use a variable inside a regular expression?
...in the regex (four backslashes). Additionally, without '\r', \b' would not converted to a word boundary anymore but to a backspace!
re.escape:
Basically puts a backspace in front of any special character. Hence, if you expect a special character in TEXTO, you need to write:
if re.search(rf"\b(?=\...
SET versus SELECT when assigning variables?
...ate my Variable-Logic in a Select to all run at once too: Example: SELECT @Int = @Int + 1, @Int = @Int + 1, if @Int started as 0, it then ends as 2. This can be very useful when doing successive string-manipulations.
– MikeTeeVee
Aug 26 '15 at 15:33
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How to save traceback / sys.exc_info() values in a variable?
I want to save the name of the error and the traceback details into a variable. Here's is my attempt.
5 Answers
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Simple way to transpose columns and rows in SQL?
...o PIVOT:
Create Table:
CREATE TABLE yourTable([color] varchar(5), [Paul] int, [John] int, [Tim] int, [Eric] int);
INSERT INTO yourTable
([color], [Paul], [John], [Tim], [Eric])
VALUES
('Red', 1, 5, 1, 3),
('Green', 8, 4, 3, 5),
('Blue', 2, 2, 9, 1);
Union All, Aggregate and CASE...
Detect current device with UI_USER_INTERFACE_IDIOM() in Swift
What is the equivalent of UI_USER_INTERFACE_IDIOM() in Swift to detect between iPhone and iPad?
17 Answers
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T-SQL: Opposite to string concatenation - how to split string into multiple records [duplicate]
... (
SELECT r.value('.','VARCHAR(MAX)') as Item
FROM (SELECT CONVERT(XML, N'<root><r>' + REPLACE(REPLACE(REPLACE(@s,'& ','&amp; '),'<','&lt;'), @sep, '</r><r>') + '</r></root>') as valxml) x
CROSS APPLY x.valxml.nodes('//root/r...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
... -O2 flag)
Your factorCount' code isn't explicitly typed and defaulting to Integer (thanks to Daniel for correcting my misdiagnosis here!). Giving an explicit type signature (which is standard practice anyway) using Int and the time changes to 11.1 seconds
in factorCount' you have needlessly called...
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
...HOWTO. This error is the very first example.
Basically, stop using str to convert from unicode to encoded text / bytes.
Instead, properly use .encode() to encode the string:
p.agent_info = u' '.join((agent_contact, agent_telno)).encode('utf-8').strip()
or work entirely in unicode.
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Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
...e) changes the default encoding/decoding used whenever Python 2.x needs to convert a Unicode() to a str() (and vice-versa) and the encoding is not given. I.e:
str(u"\u20AC")
unicode("€")
"{}".format(u"\u20AC")
In Python 2.x, the default encoding is set to ASCII and the above examples will fail...
How do I determine the size of an object in Python?
I want to know how to get size of objects like a string, integer, etc. in Python.
13 Answers
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