How to convert nested Lists into a single List in Python?

Question

Below is the list details:

my_list = ['If', 'FirstNumber', ['is', 'greater', 'than'], '12.9']

Using this above mentioned my_list details I need to get output like below.

my_list1 = ['If', 'FirstNumber', 'is', 'greater', 'than', '12.9']

I have tried using a for loop but I did not get the expected result.

my_list = ['If', 'FirstNumber', ['is', 'greater', 'than'], '12.9']
for i in my_list:
    t2=i
    print(t2)

The actual result I am getting is :

If
FirstNumber
['is', 'greater', 'than']
12.9

The expected result should be given as below:

my_list1 = ['If', 'FirstNumber', 'is', 'greater', 'than', '12.9']

Answer 1

Try this:

my_list1 = [] 
for i in my_list: 
    if isinstance(i,list): 
        my_list1.extend(i) 
    else: 
        my_list1.append(i)