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append to url and refresh page
...= '&param=42';
We don't have to alter the entire url, just the query string, known as the search attribute of location.
When you are assigning a value to the search attribute, the question mark is automatically inserted by the browser and the page is reloaded.
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Run a PostgreSQL .sql file using command line arguments
...methods.html#AUTH-TRUST
Since PostgreSQL 9.1 you can also use a connection string: https://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
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How to execute a file within the python interpreter?
... reads the file and returns (by default) the entire contents in one single string, see e.g. w3schools page on file open.
– Max
May 22 '19 at 16:17
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Replacing Pandas or Numpy Nan with a None to use with MysqlDB
...to use before inserting with Django to avoid the np.nan being converted to string "nan"
– shadi
May 11 '18 at 8:04
Use...
finding and replacing elements in a list
...lex operations on the list items. For example, if each list item is a long string that need some kind of search and replacement.
– not2qubit
Nov 19 '18 at 6:50
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find -exec with multiple commands
...? this is failing: find ./* -exec grep -v 'COLD,' {} \; -exec egrep -i "my_string" {} \;
– rajeev
Jan 22 '13 at 16:08
53
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Celery Received unregistered task of type (run example)
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Voted your answer for this string please in other module invoke task!!!!!!!!. It helped.
– VolArt
Jan 14 '19 at 10:47
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Save image from URL by paperclip
...lightly better than open(url). Because with open(url) you're going to get "stringio.txt" as the filename. With the above you're going to get a proper name of the file based on the URL. i.e.
self.picture = URI.parse("http://something.com/blah/avatar.png")
self.picture_file_name # => "avatar.p...
Postgresql: Scripting psql execution with password
... the following format:
hostname:port:database:username:password Do not add string quotes around your field values. You can also use * as a wildcard for your port/database fields.
You must chmod 0600 ~/.pgpass in order for it to not be silently ignored by psql.
Create an alias in your bash profile th...
How to delete a file via PHP?
.../github.com/luyadev/luya/blob/master/core/helpers/FileHelper.php
* @param string $filename The file path to the file to delete.
* @return boolean Whether the file has been removed or not.
*/
function unlinkFile ( $filename ) {
// try to force symlinks
if ( is_link ($filename) ) {
...