Appending a dictionary to a list – I see a pointer like behavior

by

You are correct in that your list contains a reference to the original dictionary.

a.append(b.copy()) should do the trick.

Bear in mind that this makes a shallow copy. An alternative is to use copy.deepcopy(b), which makes a deep copy.

More Related Contents:

  1. how do I make two dictionary keys with value as list [closed]
  2. How to name a file using a value in a list in a dictionary?
  3. How do I initialize a dictionary of empty lists in Python?
  4. Access a particular field in arbitrarily nested JSON data [duplicate]
  5. How to return dictionary keys as a list in Python?
  6. Dictionary: Get list of values for list of keys
  7. In Python, when to use a Dictionary, List or Set?
  8. Create a list with initial capacity in Python
  9. python filter list of dictionaries based on key value
  10. How can I access the nested data in this complex JSON, which includes another JSON document as one of the strings?
  11. How can I initialize a dictionary of distinct empty lists in Python?
  12. List of tuples to dictionary [duplicate]
  13. How do I combine two lists into a dictionary in Python? [duplicate]
  14. Converting list of tuples into a dictionary
  15. [] and {} vs list() and dict(), which is better?
  16. Appending a dictionary to a list in a loop
  17. Sorting a dictionary with lists as values, according to an element from the list
  18. How do I serialize a Python dictionary into a string, and then back to a dictionary?
  19. One liner: creating a dictionary from list with indices as keys
  20. Group by multiple keys and summarize/average values of a list of dictionaries
  21. Convert list of strings to dictionary
  22. Using a dict to translate numbers to letters in python
  23. How can I make a dictionary (dict) from separate lists of keys and values?
  24. How can I avoid “RuntimeError: dictionary changed size during iteration” error?
  25. Creating a dictionary with list of lists in Python
  26. Mapping dictionary value to list
  27. How to sort a list of dictionaries by a value of the dictionary in Python?
  28. How to extract all values from a dictionary in Python?
  29. Comparing 2 lists consisting of dictionaries with unique keys in python
  30. How to create a nested dictionary from a list in Python?

Leave a Comment