I would like to process this json data in python: I would like to get the value of all “chain”s. For example like this: I tried with a for loop, but (in the case of several “chain”s) it returns only the last value of “chain” for example ACH BEP20. Does not return ACH ERC20. Answer You said you used for-loop
Tag: key
Filter Json Keys that contains certain character in Python
I need to filter all Keys in this dict (book-1, book-2 and book-3) that conatains the string ‘book’and save them in a new dict. In this example no need to seave ‘bicycle’. Answer This can be accomplished with a dict comprehension, which can be updated based on your needed filter:
How to write dict in file with specific format and headers?
I have a dict: I need to write this data into file line by line in the following format: How to do that using Python? Answer You can change dictionary1 to dictionary2 for other values.
max(*args, key = … ). How to modify key to get just certain values?
I am a bit confused with max(*args, key = ..) function. Imagine I have a following list: my_list = [2, 3, 4, -5, -2, -1]. I want to find maximum value within the negative values in my_list. For this, I am using the following code max(my_list, key = lambda x: x<0), but it gives me -5. Can you please explain
Check if key-value combinations can be found in Python dict
I am looking for a function found_in_color_dict() which tells me if a certain key-value combination can be found in color_dict. The function returns True or False, respectively. Based on the example I would expect the following results: I can only think of complex approaches to solve this problem. But I guess there might be an easy way to solve it,
How to use key in the sort function in this situation (Python)?
I have a list like this: Now I want to sort it, but by the number, not by the word. If I just use l.sort() it just sorts by alphabetically. My desired output should be sth like (d,0)(c,1)(a,2)(b,4) I tried l.sort(key = l[0][1]) but it won’t work too (l[0][1] actually refer to number 2, which is the second value) Answer
Mifare 4K change of keys in trailing block returns error “99” using ACR1252 and pyscard
We receive Mifare 4k cards from a supplier who pre-encodes each sector trailer as follows: In doing so, the supplier sets the access bit to FF0780 and the read key (Key A) and write key (Key B) remain the factory default FFFFFFFFFFFF When attempting to write a new read key(Key A) and write key (Key B) and access bit using
Error when transforming (and reversing) Tuple Tuple to dict
I am trying to transform following tuple tuple into a dict (and a reversed one of that): This is the code I use: And I receive the following error: TypeError: unhashable type: ‘list’ How should I do this? Thank you a lot! Answer you are right, lists cannot be used as keys in python dict because key has to be
How to access first n characters of a key value in Python
I need to access the first 10 characters of a key-value in dictionary. My dictionary looks like this: I have tried: The desired output is: Answer Why are you using a loop? You can do this directly:- Output:-
Return copy of dictionary excluding specified keys
I want to make a function that returns a copy of a dictionary excluding keys specified in a list. Considering this dictionary: A call to without_keys(my_dict, [‘keyB’, ‘keyC’]) should return: I would like to do this in a one-line with a neat dictionary comprehension but I’m having trouble. My attempt is this: which is invalid syntax. How can I do