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How do you run your own code alongside Tkinter's event loop?
...t opencv and tkinter to work together properly and cleanly close when the [X] button was clicked, this along with win32gui.FindWindow(None, 'window title') did the trick! I'm such a noob ;-)
– JxAxMxIxN
Oct 16 '16 at 14:48
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How to insert a newline in front of a pattern?
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This works in bash and zsh, tested on Linux and OS X:
sed 's/regexp/\'$'\n/g'
In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline lite...
SQL left join vs multiple tables on FROM line?
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The old syntax, with just listing the tables, and using the WHERE clause to specify the join criteria, is being deprecated in most modern databases.
It's not just for show, the old syntax has the possibility of being ambiguous when you u...
Pretty-print an entire Pandas Series / DataFrame
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You can also use the option_context, with one or more options:
with pd.option_context('display.max_rows', None, 'display.max_columns', None): # more options can be specified also
print(df)
This will automatically return the options to their previous ...
Like Operator in Entity Framework?
..., this link should help. Go to this answer if you are already using EF 6.2.x. To this answer if you're using EF Core 2.x
Short version:
SqlFunctions.PatIndex method - returns the starting position of the first occurrence of a pattern in a specified expression, or zeros if the pattern is not found,...
Is there an equivalent to background-size: cover and contain for image elements?
...vw;
height: 100vh;
object-fit: cover;
}
<img src="http://lorempixel.com/1500/1000" />
See MDN - regarding object-fit: cover:
The replaced content is sized to maintain its aspect ratio while
filling the element’s entire content box. If the object's aspect ratio
does not...
maximum value of int
Is there any code to find the maximum value of integer (accordingly to the compiler) in C/C++ like Integer.MaxValue function in java?
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How does StartCoroutine / yield return pattern really work in Unity?
...gorithm with a central loop, it’s fairly obvious: an A* pathfinder, for example, can be structured such that it maintains its node lists semi-permanently, processing only a handful of nodes from the open list each frame, instead of trying to do all the work in one go. There’s some balancing to b...
How to check status of PostgreSQL server Mac OS X
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The simplest way to to check running processes:
ps auxwww | grep postgres
And look for a command that looks something like this (your version may not be 8.3):
/Library/PostgreSQL/8.3/bin/postgres -D /Library/PostgreSQL/8.3/data
To start the server, execute something like t...
Multiline string literal in C#
...u also do not have to escape special characters when you use this method, except for double quotes as shown in Jon Skeet's answer.
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