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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 ...
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...
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,...
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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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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How to check if a value exists in a dictionary (python)
...s require a global lookup and call, they'll absolutely be slower. Both do extra work that's not needed.
– Martijn Pieters♦
Aug 15 '19 at 12:02
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How to solve javax.net.ssl.SSLHandshakeException Error?
...d i bind to UI. And also I integrated PayPal with my application for make Express checkout when I make a call for payment I'm facing this error. I use servlet for back-end process. Can any one say how to fix this issue?
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Modulo operation with negative numbers
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This makes sense, logically. Right?
Let's see what this leads to:
Example A. 5/(-3) is -1
=> (-1) * (-3) + 5%(-3) = 5
This can only happen if 5%(-3) is 2.
Example B. (-5)/3 is -1
=> (-1) * 3 + (-5)%3 = -5
This can only happen if (-5)%3 is -2
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Python Flask, how to set content type
I am using Flask and I return an XML file from a get request. How do I set the content type to xml ?
7 Answers
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Group by with multiple columns using lambda
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var query = source.GroupBy(x => new { x.Column1, x.Column2 });
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