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Append integer to beginning of list in Python [duplicate]
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>>>var=7
>>>array = [1,2,3,4,5,6]
>>>array.insert(0,var)
>>>array
[7, 1, 2, 3, 4, 5, 6]
How it works:
array.insert(index, value)
Insert an item at a given position. The first argument is the index of the element before which t...
Reuse Cucumber steps
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102
UPDATE: The method described below has been deprecated. The recommended way to call a step from ...
Find and replace string values in list
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282
words = [w.replace('[br]', '<br />') for w in words]
These are called List Comprehensi...
sed edit file in place
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edited Jun 10 '18 at 12:23
Iulian Onofrei
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an...
How do I convert an HttpRequestBase into an HttpRequest object?
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edited Sep 21 '09 at 1:54
answered Sep 21 '09 at 1:44
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Sequence contains no elements?
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answered Aug 24 '09 at 19:23
Ryan LundyRyan Lundy
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Why can't decimal numbers be represented exactly in binary?
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20 Answers
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How to concatenate strings of a string field in a PostgreSQL 'group by' query?
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PostgreSQL 9.0 or later:
Recent versions of Postgres (since late 2010) have the string_agg(expression, delimiter) function which will do exactly what the question asked for, even letting you specify the delimiter string:
SELECT company_id, string_agg(employee, ', ')
FROM mytable
GROUP BY ...
Server.UrlEncode vs. HttpUtility.UrlEncode
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answered Mar 2 '09 at 15:03
Mehrdad AfshariMehrdad Afshari
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