How to append dictionary to a list in loop

How to append dictionary to a list in loop

Hi,

I have to write a program in Python for appending dictionary to list in for loop. I will be creating a new dictionary in the loop and then adding to the list.

What is the best way to achieve this?

How to append dictionary to a list in loop?

Thanks

View Answers

July 18, 2021 at 3:28 PM

Hi,

You can make a list before starting your for loop. In your for loop you can create a dictionary and add some key value pair to it.

After creating dictionary inside the loop you can add it to the list.

Here is working example of to append dictionary to a list in loop:

myList = []
for i in range(10):
    dicttemp = {}
    dicttemp["id"]=i
    myList.append(dicttemp.copy())

print(myList)

Here is the output of the program:

>>> myList = []
>>> for i in range(10):
...     dicttemp = {}
...     dicttemp["id"]=i
...     myList.append(dicttemp.copy())
... 
>>> print(myList)
[{'id': 0}, {'id': 1}, {'id': 2}, {'id': 3}, {'id': 4}, {'id': 5}, {'id': 6}, {'id': 7}, {'id': 8}, {'id': 9}]
>>> 
>>>

You can modify above program to meet your requirements.

Thanks


July 18, 2021 at 3:29 PM

Hi,

Check more tutorials at:

Thanks

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