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  1. python - What is the difference between shallow copy, deepcopy …

    May 6, 2017 · Below code demonstrates the difference between assignment, shallow copy using the copy method, shallow copy using the (slice) [:] and the deepcopy. Below example uses …

  2. How can I create a copy of an object in Python? - Stack Overflow

    Jan 25, 2011 · 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 …

  3. why should I make a copy of a data frame in pandas

    Dec 28, 2014 · When selecting a sub dataframe from a parent dataframe, I noticed that some programmers make a copy of the data frame using the .copy() method. For example, X = …

  4. How to copy a dictionary and only edit the copy - Stack Overflow

    Mar 18, 2010 · 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 …

  5. How do I clone a list so that it doesn't change unexpectedly after ...

    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 …

  6. What is the difference between Copy and Clone? - Stack Overflow

    Jun 23, 2015 · 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 …

  7. c++ - Deep copy vs Shallow Copy - Stack Overflow

    Nov 19, 2016 · The terms deep vs shallow copy aren't typically used in C++, since they don't map particularly well to the language. In Java and several other languages, the distinction is more …

  8. How to copy string to clipboard as text/html? - Stack Overflow

    Copy a section of your page (element) than copying HTML. With this simple function you can copy whatever you want (text, images, tables, etc.) on your page or the whole document to the …

  9. What is a copy constructor in C++? - Stack Overflow

    Jan 30, 2010 · A copy constructor is a constructor which does deep copy. You should write your own copy constructor when there is a pointer type variable inside the class. Compiler will insert …

  10. What is the difference between the 'COPY' and 'ADD' commands …

    You should check the ADD and COPY documentation for a more detailed description of their behaviors, but in a nutshell, the major difference is that ADD can do more than COPY: ADD …