Pfthb

I require some help since whenever I input a negative number the list it interprets it as a separate element so once it gets to sorting it puts all the negative symbols at the beginning. The end goal of the code is to sort 2 merged lists without using the default sort functions. Also if there is a better way to get rid of spaces in a list I would appreciate it, since at the moment I have to convert the list to a string and replace/strip the extra elements that the spaces cause.

list1 = list(input())
list2 = list(input())
mergelist = list1 + list2

print(mergelist)


def bubble_sort(X):
 nums = list(X)
 for i in range(len(X)):
 for j in range(i+1, len(X)):
 if X[j] < X[i]:
 X[j], X[i] = X[i], X[j]
 return X

mergelist = bubble_sort(mergelist)
strmergelist = str(mergelist)

strmergelist = strmergelist.replace("'", '')
strmergelist = strmergelist.replace(",", '')
strmergelist = strmergelist.strip('')
strmergelist = strmergelist.strip()

print(strmergelist)

The output for lists with no negatives is:

1 2 3 4 4 5 5

However with negatives it becomes:

- - - - 1 2 3 3 4 4 5

and my first print function to just check the merging of the lists looks like this when I input any negatives (ignore the spaces since I attempt to remove them later):

['1', ' ', '-', '2', ' ', '3', '3', ' ', '-', '4', ' ', '-', '4', ' ', '-', '5']

list() doesn't parse a string to a list of integers, it turns an iterable of items into a list of items.
To read a list from the console, try something like:

def read_list():
 """
 read a list of integers from stdin
 """
 return list(map(int, input().split()))

list1 = read_list()
list2 = read_list()

input.split() reads one line of user input and will separate it by whitespace - basically to words.

int() can convert a string to an integer.

map(int, ...) returns an iterable which applies int() to each "word" of the user input.

The final call to list() will turn the iterable to a list.

This should handle negative numbers as well.

Additionally, I see that you want to print the resulting list without extra character. I recommend this:

print(' '.join(mergelist))