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Is it possible to use 'else' in a list comprehension? [duplicate]
... true - otherwise, it evaluates to c. It can be used in comprehension statements:
>>> [a if a else 2 for a in [0,1,0,3]]
[2, 1, 2, 3]
So for your example,
table = ''.join(chr(index) if index in ords_to_keep else replace_with
for index in xrange(15))
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C# getting the path of %AppData%
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To get the AppData directory, it's best to use the GetFolderPath method:
Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
(must add using System if not present).
%AppData% is an environment variable, and they are not automatically expanded anywhere in .NET, although...
What is the $$hashKey added to my JSON.stringify result
... SO and Google but found no explanation. I have used JSOn stringify many time but never come across this result
8 Answers
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string.Format() giving “Input string is not in correct format”
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Thank you! The error message "Input string was not in correct format" was not helpful to me at all. I thought one of my parameters was null or something.
– styfle
Aug 10 '12 at 16:59
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Count how many records are in a CSV Python?
I'm using python (Django Framework) to read a CSV file. I pull just 2 lines out of this CSV as you can see. What I have been trying to do is store in a variable the total number of rows the CSV also.
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Horizontal ListView in Android?
...rizontally? I have done this using a gallery view, but the selected item comes to the center of the screen automatically. I don't want the selected item at the same spot I clicked. How can I rectify this problem? My idea was to set the ListView with a horizontal scroll. Share your idea?
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How do I keep the screen on in my App? [duplicate]
... the follwing permission in manifest file :
<uses-permission android:name="android.permission.WAKE_LOCK" />
Hope this will solve your problem...:)
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Using MemoryStore in production
Today I ran my Node.js application in "production" mode for the first time and got this warning:
8 Answers
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Easiest way to read from and write to files
...excerpt:
// Create a file to write to.
string createText = "Hello and Welcome" + Environment.NewLine;
File.WriteAllText(path, createText);
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// Open the file to read from.
string readText = File.ReadAllText(path);
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Which Radio button in the group is checked?
...here a better way to find the checked RadioButton for a group? It seems to me that the code below should not be necessary. When you check a different RadioButton then it knows which one to uncheck… so it should know which is checked. How do I pull that information without doing a lot of if stateme...