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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
oop - Why do you need explicitly have the self argument in a Python . . . By making the self reference explicit, you're free to refer to any object by that self reference Also, such a way of playing with classes at runtime is harder to do in the more static languages - not that's it's necessarily good or bad It's just that the explicit self allows all this craziness to exist
When to use self, self, mut self in methods? - Stack Overflow 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
SSL: CERTIFICATE_VERIFY_FAILED certificate verify failed : self signed . . . 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
How to bypass certificate errors using Microsoft Edge 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
git - SSL certificate problem: self signed certificate in certificate . . . 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 ) The reputation requirement helps protect this question from spam and non-answer activity