- What is the purpose of the `self` parameter? Why is it needed?
For a language-agnostic consideration of the design decision, see What is the advantage of having this self pointer mandatory explicit? To close debugging questions where OP omitted a self parameter for a method and got a TypeError, use TypeError: method () takes 1 positional argument but 2 were given instead If OP omitted self in the body of the method and got a NameError, consider How can
- Difference between _self, _top, and _parent in the anchor tag target . . .
I know _blank opens a new tab when used with the anchor tag and also, there are self-defined targets I use when using framesets but I will like to know the difference between _parent, _self and _top
- What is SELF JOIN and when would you use it? [duplicate]
You use a self join when a table references data in itself E g , an Employee table may have a SupervisorID column that points to the employee that is the boss of the current employee To query the data and get information for both people in one row, you could self join like this: select e1 EmployeeID, e1 FirstName, e1 LastName, e1 SupervisorID, e2 FirstName as SupervisorFirstName, e2 LastName
- Why do I get TypeError: Missing 1 required positional argument: self?
See Why do I get 'takes exactly 1 argument (2 given)' when trying to call a method? for the opposite problem
- Difference between cls and self in Python classes?
Why is cls sometimes used instead of self as an argument in Python classes? For example: class Person: def __init__(self, firstname, lastname): self firstname = firstname self
- security - How do I create a self-signed certificate for code signing . . .
This creates a self-signed (-r) certificate, with an exportable private key (-pe) It's named "My CA", and should be put in the CA store for the current user We're using the SHA-256 algorithm The key is meant for signing (-sky) The private key should be stored in the MyCA pvk file, and the certificate in the MyCA cer file
- How can I create a self-signed certificate for localhost?
I followed the process to install a self-signed cert into IIS under Win7 But that creates the cert for "mymachinename", and I need one for "localhost"
- How to fix SSL certificate problem: self signed certificate in . . .
I have a Linux-based Docker container, where if I do: curl https: google com then I get an error: curl: (60) SSL certificate problem: self signed certificate in certificate chain More deta
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