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How do I import the Django DoesNotExist exception?
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139
You don't need to import it - as you've already correctly written, DoesNotExist is a property ...
Source code highlighting in LaTeX
...so created a LateX package, once my Pygments patch was released in version 1.2 …
Presenting minted
minted is a package that uses Pygments to provide top-notch syntax highlighting in LaTeX. For example, it allows the following output.
Here’s a minimal file to reproduce the above code (notice...
What does [ N … M ] mean in C aggregate initializers?
From sys.c line 123:
1 Answer
1
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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
... possibilities, so you judge for yourself how likely it is to get a dupe:
1) Counter overflow: there are 3 bytes in the counter. If you happen to insert over 16,777,216 (2^24) documents in a single second, on the same machine, in the same process, then you may overflow the incrementing counter byte...
How can you diff two pipelines in Bash?
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146
A one-line with 2 tmp files (not what you want) would be:
foo | bar > file1.txt &&...
MySQL: @variable vs. variable. What's the difference?
...nitialize this variable with a SET statement or inside a query:
SET @var = 1
SELECT @var2 := 2
When you develop a stored procedure in MySQL, you can pass the input parameters and declare the local variables:
DELIMITER //
CREATE PROCEDURE prc_test (var INT)
BEGIN
DECLARE var2 INT;
SET var...
Which rows are returned when using LIMIT with OFFSET in MySQL?
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190
It will return 18 results starting on record #9 and finishing on record #26.
Start by reading...
Get nodes where child node contains an attribute
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176
Try
//book[title/@lang = 'it']
This reads:
get all book elements
that have at least one...
Preventing Laravel adding multiple records to a pivot table
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edited Jul 4 '17 at 14:33
answered Jul 4 '13 at 18:35
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sqlite3.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and t
...ach one character long.
>>> len(img)
74
>>> len((img,))
1
If you find it easier to read, you can also use a list literal:
cursor.execute('INSERT INTO images VALUES(?)', [img])
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