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- Why do I get TypeError: Missing 1 required positional argument: self?
The self keyword in Python is analogous to this keyword in C++ Java C# In Python 2 it is done implicitly by the compiler (yes Python does compilation internally)
- 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
- 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 association bonus) The reputation requirement helps protect this question from spam and non-answer activity
- 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
- How can I generate a self-signed SSL certificate using OpenSSL?
The W3C's WebAppSec Working Group is starting to look at the issue See, for example, Proposal: Marking HTTP As Non-Secure How to create a self-signed certificate with OpenSSL The commands below and the configuration file create a self-signed certificate (it also shows you how to create a signing request)
- How can I create a self-signed certificate for localhost?
I've gone through the steps detailed in How do you use HTTPS and SSL on 'localhost'?, but this sets up a self-signed certificate for my machine name, and when browsing it via https: localhost, I receive the Internet Explorer warning Is there a way to create a self-signed certificate for "localhost" to avoid this warning?
- What is SELF JOIN and when would you use it? [duplicate]
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
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