how do i select the first value of "for" loop within the for loop?-CodePudding

I used following code to descending the degree value of a network, using networkx. Now I want to select only the fist value of the iteration whithin the same for loop. code as follows:

for i in sorted(G.degree, key=lambda x: x[1], reverse=True):
    list_id=(i[0])
    print(list_id)

Output gives as follows:

Could you please tell me a way to select only the first value of this iteration, (i.e., 264)

CodePudding user response：

It looks like you only want the max? Then no need to sort as this is more expensive than max.

list_id = max(G.degree, key=lambda x: x[1])

CodePudding user response：

use this :

for i in sorted(G.degree, key=lambda x: x[1], reverse=True):
    list_id=(i[0])
    break # add this line
    print(list_id)

CodePudding user response：

my_list = [264, 32, 19, 4, 101, 15]
print(sorted(my_list).pop())

CodePudding user response：

Instead of printing the values, you could store them, for example into a list, so you can use them as needed:

list_ids = []
for i in sorted(G.degree, key=lambda x: x[1], reverse=True):
    list_id=(i[0])
    list_ids.append(list_id)

list_ids[0]