Are you supposed to use self when referencing a member function in Python (within the same module)? More generally, I was wondering when it is required to use self, not just for methods but for
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 ...
A self join is simply when you join a table with itself. There is no SELF JOIN keyword, you just write an ordinary join where both tables involved in the join are the same table. One thing to notice is that when you are self joining it is necessary to use an alias for the table otherwise the table name would be ambiguous. It is useful when you want to correlate pairs of rows from the same ...
Say I want to implement a method that pretty prints the struct to stdout, should I take &self? I guess self also works? As you can see, this is exactly a case for &self. If you use self (or &mut self) the method will likely still compile, but it can only be used in more restricted situations.
To allow a self-signed certificate to be used by Microsoft-Edge it is necessary to use the "certmgr.msc" tool from the command line to import the certificate as a Trusted Certificate Authority.
The reason was an SSL certificate problem: 'self-signed certificate in certificate chain.'" Protected question. To answer this question, you need to have at least 10 reputation on this site (not counting the association bonus). The reputation requirement helps protect this question from spam and non-answer activity.
In this case, there are some benefits to allowing this: 1) Methods are just functions that happen defined in a class, and need to be callable either as bound methods with implicit self passing or as plain functions with explicit self passing. 2) Making classmethod s and staticmethod s means you want to be able to rename and omit self respectively.
7 self signed certificate in certificate chain means that certificate chain validation has failed. Your script does not trust the certificate or one of its issuers. For more information see Beginning with SSL for a Platform Engineer. The answer from Tzane had most of what you need. But it looks like you also might want to know WHAT certificate ...
Moving further: Technically both self and this are used for the same thing. They are used to access the variable associated with the current instance. Only difference is, you have to include self explicitly as first parameter to an instance method in Python, whereas this is not the case with Java. Moreover, the name self can be anything.
