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'Must Override a Superclass Method' Errors after importing a project into Eclipse
Anytime I have to re-import my projects into Eclipse (if I reinstalled Eclipse, or changed the location of the projects), almost all of my overridden methods are not formatted correctly, causing the error:
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cv2.imshow command doesn't work properly in opencv-python
... only works with waitKey():
import cv2
img = cv2.imread('C:/Python27/03323_HD.jpg')
cv2.imshow('ImageWindow', img)
cv2.waitKey()
(The whole message-loop necessary for updating the window is hidden in there.)
share
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Pandas count(distinct) equivalent
...if I have multiple columns that I want to be unique together, like in .drop_duplicates(subset=['col1','col2'])?
– ErnestScribbler
Oct 2 '17 at 8:10
4
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Installing rmagick on Ubuntu
...tup on Ubuntu 10.04. Looked here but had no joy. I even compiled and installed ImageMagick from source, but the instructions here still didn't help me when I try to install RMagick using RubyGems. I got this error:
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Disabling swap files creation in vim
...ere a way to disable .swp files creation in vim? or at least create them all in one place so I can find and delete them easily.
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Print a file's last modified date in Bash
... to find how to print out the date of a file. I'm so far able to print out all the files in a directory, but I need to print out the dates with it.
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How to check if mod_rewrite is enabled in php?
...ng mod_php, you can use apache_get_modules(). This will return an array of all enabled modules, so to check if mod_rewrite is enabled, you could simply do
in_array('mod_rewrite', apache_get_modules());
Unfortunately, you're most likely trying to do this with CGI, which makes it a little bit more ...
Postgres could not connect to server
...ew update and brew upgrade, my postgres got some problem. I tried to uninstall postgres and install again, but it didn't work as well.
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PHP calculate age
...is not safe to rely on the system's timezone settings, even when I add date_default_timezone_set('Europe/Brussels');
– stef
Sep 23 '10 at 9:01
1
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SQL Server SELECT INTO @variable?
... In case if you aren't using the database type that the OP is using, not all support TOP 1 as Adrian mentioned. SQL Server / MS Access use TOP, MySQL uses LIMIT, and Oracle uses ROWNUM. See w3schools.com/sql/sql_top.asp for more information.
– Tyler
Jul 7 '17...