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ImportError: No module named Crypto.Cipher
...run app.py (Python 3.3, PyCrypto 2.6) my virtualenv keeps returning the error listed above. My import statement is just from Crypto.Cipher import AES . I looked for duplicates and you might say that there are some, but I tried the solutions (although most are not even solutions) and nothing worked....
super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
I get some error that I can't figure out. Any clue what is wrong with my sample code?
4 Answers
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Add a new element to an array without specifying the index in Bash
...ext where an assignment statement is assigning a value to a shell variable or array index (see Arrays), the ‘+=’ operator can be used to append to or add to the variable's previous value.
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Passing two command parameters using a WPF binding
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Firstly, if you're doing MVVM you would typically have this information available to your VM via separate properties bound from the view. That saves you having to pass any parameters at all to your commands.
However, you could also multi-bind and use a converter to create the parameters...
Are there any reasons to use private properties in C#?
...if I need to cache a value and want to lazy load it.
private string _password;
private string Password
{
get
{
if (_password == null)
{
_password = CallExpensiveOperation();
}
return _password;
}
}
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Current location permission dialog disappears too quickly
My app takes the user's location, gets the co-ordinates , and provides a distance to or from their destination or origin. All these possible destinations are shown in a table view, so I'm getting the users co-ordinates at the same time as populating the table. The only thing is, the alert view that ...
How to remove jar file from local maven repository which was added with install:install-file?
... to do this, it's easier to just delete the files manually from the repository.
Like this on windows Documents and Settings\your username\.m2 or $HOME/.m2 on Linux
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Showing empty view when ListView is empty
For some reason the empty view, a TextView in this case, always appears even when the ListView is not empty. I thought the ListView would automatically detect when to show the empty view.
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Git - push current branch shortcut
Is there a shortcut to tell Git to push the current tracking branch to origin?
Note: I know that I can change the default push behavior , but I am looking for an ad-hoc solution that does not change the default behavior.
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Why can't I define a static method in a Java interface?
...fficial proposal to add them in Java 7, but it was later dropped due to unforeseen complications.
Finally, Java 8 introduced static interface methods, as well as override-able instance methods with a default implementation. They still can't have instance fields though. These features are part of th...