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

    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 nested lists …

  2. 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 a new compound …

  3. Dockerfile copy keep subdirectory structure - Stack Overflow

    May 13, 2015 · This is the best solution because in one command you can copy an entire filesystem's worth of changes into an image layer. I keep a /resources directory in my source repo that mirrors …

  4. How can I copy and paste content from one file to another?

    I am working with two files, and I need to copy a few lines from one file and paste them into another file. I know how to copy (yy) and paste (p) in the same file. But that doesn't work for different

  5. How do I copy an object in Java? - Stack Overflow

    Mar 23, 2012 · Create a copy constructor: class DummyBean { private String dummy; public DummyBean(DummyBean another) { this.dummy = another.dummy; // you can access } } Every …

  6. How to override the copy/deepcopy operations for a Python object?

    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 …

  7. What is the difference between the 'COPY' and 'ADD' commands in a ...

    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 allows <src> to be …

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

    Jun 23, 2015 · The Copy trait represents values that can be safely duplicated via memcpy: things like reassignments and passing an argument by-value to a function are always memcpy s, and so for …

  9. Copying and pasting code directly into the Python interpreter

    There is a snippet of code that I would like to copy and paste into my Python interpreter. Unfortunately due to Python's sensitivity to whitespace it is not straightforward to copy and paste it a way

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

    While new_list = old_list[:], copy.copy(old_list)' and for Py3k old_list.copy() work for single-leveled lists, they revert to pointing at the list objects nested within the old_list and the new_list, and changes to …