I have two list of dict : I want a dict (or list of dict) as : Can you help me ? Answer To do this efficiently, use a defaultdict and iterate over each nested entry. Result: Note: it looks like {‘Coin’: ‘DDD’, ‘Price’: ‘4’} is excluded from your result and is un…
Tag: dictionary
How to append a multiple dictionaries to a list from a loop, python?
How can one append dictionaries that each looping generates to a list so at the end my function returns a list of n-dictionaries? Without any fancy libraries, just plain python? the function returns a instances of dictionaries but never an appended list of all dictionaries that were generated. Can somebody he…
Pop or Delete a Dictionary item from list
I have this list of dictionary items. I want to delete a specific dictionary entry from the list by comparing it with a dictionary item I have a variable I would like to do, To get, Answer It seems that you are trying to delete a tuple of items. Your to_delete is actually a tuple of dictionaries, so to delete
Converting a Dictionary to DataFrame in Python
I have a dictionary of a static structure: I will need to record data a few extra keys deep to the same depth, so somewhat uniform. Example Dictionary: I want a DataFrame of this structure: Example Desired DataFrame: Where all Child Values are either a list object of strings or a string object. From researchi…
Problems regarding “key” in the min() function
scores = {1:20, 2:40, 3:0, 4:25} min_score = min(scores, key=scores.get) I don’t quite understand the parameters that can be passed into the key. Running the above code gives me 3 which is what I wanted. scores.get return me a dict object at certain memory address. Calling scores.get() raised me an Erro…
Unexpected UserDict Behavior
I am working on a project and need to make use of UserDict instead of dict. I am importing a JSON file that is a dictionary with lists containing more dictionaries. Here is some example code and the behavior differences I am seeing: The output: Why did the new key not get added to person_user_dict and how can…
make nested dict from list of chains (python)
everyone. I have the structure like this: And want the output like this: I have a lot of of lists (chains) in the data, so I need your help!) How to do it in python? Answer Source : How to merge dictionaries of dictionaries?
Sort list of dictionaries with inconsistent keys
I want to sort a list of dictionaries. The problem is that key in the dictionaries are not same, but every dictionary will have only one item for sure. For example, [{‘foo’:39}, {‘bar’:7}, {‘spam’:35}, {‘buzz’:4}] Here, key is the name of the person and value is…
How to change the values of instance attributes in a loop
I have a work implantation of python which has some inbuilt dialog boxes so I cannot share the original code here. The problem I have is I want to update the values of some instance attributes. I made a dictionary from zipping 2 lists together so that in a for loop I could mention to the user the string that
memory leak while adding elements from text file to dictionary in python
I am running a very simple code to read into txt files and add them to an existing dictionary. With htop I see that the used memory linearly increases until I run out of memory. Here is a simplified version of the code: I tried to delete the output and added a garbage collector in the loop and it has