print dir combo mambo is very handy as other have said. We can see attributes/methods associated with any object in python. here now I can see all the methods I can use against my string object variable fn. And string in python is immutable which is the same thing in C#.
Now if I want to know; for instance, what the method zfill actually would do on the string object I can use print with help BIF which will print the documentation of zfill telling me all about zfill method’s fuctionality. (It might be equivalent C# String.padleft(…))
