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Explaining Python's '__enter__' and '__exit__'
I saw this in someone's code. What does it mean?
6 Answers
6
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How can I change my default database in SQL Server without using MS SQL Server Management Studio?
...u do not have permission.". even worse I'm in multiple groups because each one gives me specific access to one of the many DBs on the server. suggestions?
– matao
Feb 1 '19 at 2:58
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Read entire file in Scala?
...hat it is horrible slow due to its implementation nature. For larger files one should use:
source.getLines mkString "\n"
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How to programmatically empty browser cache?
...n to set up the App Cache manifest. It does not describe a method by which one can clear the 'traditional' browser cache via client- or server-side code, which is nigh impossible to do.
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How to change the order of DataFrame columns?
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One easy way would be to reassign the dataframe with a list of the columns, rearranged as needed.
This is what you have now:
In [6]: df
Out[6]:
0 1 2 3 4 mean
0 0.445598 0....
How to recursively find and list the latest modified files in a directory with subdirectories and ti
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Try this one:
#!/bin/bash
find $1 -type f -exec stat --format '%Y :%y %n' "{}" \; | sort -nr | cut -d: -f2- | head
Execute it with the path to the directory where it should start scanning recursively (it supports filenames with spa...
Node.js create folder or use existing
...wered Dec 4 '12 at 5:58
Teemu IkonenTeemu Ikonen
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Naming Classes - How to avoid calling everything a “Manager”? [closed]
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In one particular company long ago, I knew an engineer so fed up with the absurd and growing plethora of suffix rules plaguing the company that he defiantly ended every class with Thingy.
– user4229245
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Difference between String replace() and replaceAll()
...eplace all occurrences of the string fish with sheep.
String myString = "one fish, two fish, three fish";
String target = "fish";
String replacement = "sheep";
String newString = myString.replace(target, replacement);
// one sheep, two sheep, three sheep
replaceAll()
Use replaceAll() if you w...
Getting started with Haskell
... wrap my head around the functional programming paradigm in Haskell. I've done this by reading tutorials and watching screencasts, but nothing really seems to stick.
Now, in learning various imperative/OO languages (like C, Java, PHP), exercises have been a good way for me to go. But since I don't r...