The copy module does not use the copy_reg registration module. In order for a class to define its own copy implementation, it can define special methods __copy__() and __deepcopy__(). The former is called to implement the shallow copy operation; no additional arguments are passed.
copy.copy doesn't change this at all. If you want to propagate changes even for numbers or strings - here does the immutability show - you have to wrap the numbers and strings in a another object and assign it to a and b. If you want to go the other way round you have to use the copy module, but make sure to read the docs.
To get a fully independent copy of an object you can use the copy.deepcopy() function. For more details about shallow and deep copying please refer to the other answers to this question and the nice explanation in this answer to a related question.
copy copy.copy() copy.deepcopy() copy() is a shallow copy function. If the given argument is a compound data structure, for instance a list, then Python will create another object of the same type (in this case, a new list) but for everything inside the old list, only their reference is copied. Think of it like:
A shallow copy constructs a new compound object and then (to the extent possible) inserts references into it to the objects found in the original. A deep copy constructs a new compound object and then, recursively, inserts copies into it of the objects found in the original.
Below code demonstrates the difference between assignment, shallow copy using the copy method, shallow copy using the (slice) [:] and the deepcopy. Below example uses nested lists there by making the differences more evident.
import copy new_list = copy.copy(old_list) This is a little slower than list() because it has to find out the datatype of old_list first. If you need to copy the elements of the list as well, use generic copy.deepcopy(): Copy
Clone is designed for arbitrary duplications: a Clone implementation for a type T can do arbitrarily complicated operations required to create a new T. It is a normal trait (other than being in the prelude), and so requires being used like a normal trait, with method calls, etc. The Copy trait represents values that can be safely duplicated via memcpy: things like reassignments and passing an ...
10 Quoting from the result of copy /? Copies one or more than one files to another location. Quoting from the result of xcopy /? Copies files and directory trees. The essential difference between the two commands is that when you provide the path of a folder to copy, only the files in that folder will be copied to the specified destination.
If you want a copy, the fastest way of doing this would be to save the project. Then make a copy of the entire thing on the File System. Go back into Visual Studio and open the copy (by right clicking on solution => add existing project => open the copied project). From there, I would most likely recommend re-naming the project/solution (Steps of Safely Renaming Project are in the following ...
