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How do I get a list of column names from a psycopg2 cursor?
...ch led me to this page in the first place):
import psycopg2
from psycopg2.extras import RealDictCursor
ps_conn = psycopg2.connect(...)
ps_cursor = psql_conn.cursor(cursor_factory=RealDictCursor)
ps_cursor.execute('select 1 as col_a, 2 as col_b')
my_record = ps_cursor.fetchone()
print (my_record['...
Why covariance and contravariance do not support value type
...he values. References all look the same - so you can use an IEnumerable<string> as an IEnumerable<object> without any change in representation; the native code itself doesn't need to know what you're doing with the values at all, so long as the infrastructure has guaranteed that it will ...
Check if object is file-like in Python
... common meanings are "has read(size)", "has read()", or "is an iterable of strings", but some old libraries may expect readline instead of one of those, some libraries like to close() files you give them, some will expect that if fileno is present then other functionality is available, etc. And simi...
difference between width auto and width 100 percent
...rders.
width: 100%; will make the element as wide as the parent container. Extra spacing will be added to the element's size without regards to the parent. This typically causes problems.
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Set every cell in matrix to 0 if that row or column contains a 0
... using the final row/column to store that information, so I was stuck with extra memory for a pair of Nx1 arrays.
– Dave Sherohman
Dec 8 '08 at 15:44
1
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How to send a “multipart/form-data” with requests in python?
... and additional headers for each part by using a tuple instead of a single string or bytes object. The tuple is expected to contain between 2 and 4 elements; the filename, the content, optionally a content type, and an optional dictionary of further headers.
I'd use the tuple form with None as the ...
Prevent RequireJS from Caching Required Scripts
...tion (http://requirejs.org/docs/api.html#config):
urlArgs: Extra query string arguments appended to URLs that RequireJS
uses to fetch resources. Most useful to cache bust when the browser or
server is not configured correctly.
Example, appending "v2" to all scripts:
require.config({
...
reformat in vim for a nice column layout
...lumn(1) command.
:%!column -t
The above will parse on delimiters inside string literals which is wrong, so you will likely need pre-processing steps and specifying the delimiter for this file for example:
%!sed 's/","/\&/' | column -t -s '&'
...
Is Enabling Double Escaping Dangerous?
...e with the uri decoded data (such as generating local filesystem URI's via string concatenation).
To disable the check do the following (from here): (see my comment below for what double escaping entails).
<system.webServer>
<security>
<requestFiltering allowDoubleEscapi...
What is Hindley-Milner?
... of the length function: it can be "list of integers to integer", "list of strings to integer", "list of pairs to integer", and so on. In this case, a signal advantage of the Hindley-Milner system is that each well-typed term has a unique "best" type, which is called the principal type. The princi...