CODEWITHSUNDEEP
pythonpython-3.x
Youngdong Kim
Youngdong Kim

Reputation: 59

Make order of 'to-do list' without sort() function

I have 'TO-DO LIST' like below. And I want to arrange 'TO-DO LIST' following "Argent Level", "The time required" and "Incoming order" without sort() function

# "Argent Level", "The time required" and "Incoming order"
work_list = [
             "Low_Level, 1, A.Login Error",
             "High_Level, 3, B.User info Error",
             "Nomal_Level, 1, C.Admin Error",
             "Low_Level, 2, D.Icon change of User",
             "High_Level, 3, E.Email export Error",
             "Nomal_Level, 1, F.Photo size Error",
             "High_Level, 2, G.Admin Page Error",
             "Nomal_Level, 3, H.Customer Page Error",
             "Low_Level, 1, I.Image box Error",
             "Nomal_Level, 3, J.Border Error",
             "Low_Level, 1, K.Background Color Error",
             "High_Level, 2, L.SignUp Error",
]

For example, There are same "High_Level" List like below.

"High_Level, 3, B.User info Error",
"High_Level, 3, E.Email export Error",
"High_Level, 2, G.Admin Page Error",
"High_Level, 2, L.SignUp Error",

First I want to make this list like below order by "The time required" and if they have same "The time required", next order by Incoming order using a capital letter of "Incoming order"

"High_Level, 2, G.Admin Page Error",
"High_Level, 2, L.SignUp Error",
"High_Level, 3, B.User info Error",
"High_Level, 3, E.Email export Error",

And I tried to make code like this. But It was not correct.

high_level_list = []
nomal_level_list = []
low_level_list = []

for i in range(0, len(work_list)):
    if "High_Level" in work_list[i]:
        high_level_list.append(work_list[i])

for i in range(0, len(work_list)):
    if "Nomal_Level" in work_list[i]:
        nomal_level_list.append(work_list[i])

for i in range(0, len(work_list)):
    if "Low_Level" in work_list[i]:
        low_level_list.append(work_list[i])

for i in range(0, len(high_level_list)):
    if high_level_list[i][1] >= 3:
        temp = high_level_list[-1]
        high_level_list[-1] = high_level_list[i]
        high_level_list[i] = temp
        print(high_level_list)

I wanna output like below

"High_Level, 2, G.Admin Page Error",
"High_Level, 2, L.SignUp Error",
"High_Level, 3, B.User info Error",
"High_Level, 3, E.Email export Error",

"Nomal_Level, 1, C.Admin Error",
"Nomal_Level, 1, F.Photo size Error",
"Nomal_Level, 3, H.Customer Page Error",
"Nomal_Level, 3, J.Border Error",

"Low_Level, 1, A.Login Error",
"Low_Level, 1, I.Image box Error",
"Low_Level, 1, K.Background Color Error",
"Low_Level, 2, D.Icon change of User",

Upvotes: 0

Views: 51

Answers (1)

tobias_k
tobias_k

Reputation: 82929

First, you will want to convert your work_list to a list of tuples, instead of just strings, so you can access the individual fields, in particular the number that you need in the last step.

>>> work_list_tuples = [tuple(s.split(", ")) for s in work_list]

Your first loops should work, but you can make them more compact as list comprehensions

>>> high = [x for x in work_list_tuples if x[0] == "High_Level"]

Your last loop is kind of a bugged insertion sort, but instead of trying to fix that you can use another list comprehension to filter the high items where the value is 3 or higher, too:

>>> high_3 = [x for x in high if int(x[1]) >= 3]

This gives you

[('High_Level', '3', 'B.User info Error'),
 ('High_Level', '3', 'E.Email export Error')]

Do the same for normal and low level and for high with lower than 3, and put the lists back together.

>>> high_3 + high_12 + norm + low
[('High_Level', '3', 'B.User info Error'),
 ...
 ('High_Level', '2', 'L.SignUp Error'),
 ...
 ('Nomal_Level', '1', 'C.Admin Error'),
 ...
 ('Low_Level', '1', 'K.Background Color Error')]

However, in all remotely practical application, I would strongly suggest just using sort (the list method) or sorted (the builtin function) with an appropriate key function, e.g. like this:

>>> sorted(work_list_tuples, key=lambda x: ("HNL".index(x[0][0]), -int(x[1])))
[('High_Level', '3', 'B.User info Error'),
 ('High_Level', '3', 'E.Email export Error'),
 ('High_Level', '2', 'G.Admin Page Error'),
 ('High_Level', '2', 'L.SignUp Error'),
 ('Nomal_Level', '3', 'H.Customer Page Error'),
 ('Nomal_Level', '3', 'J.Border Error'),
 ('Nomal_Level', '1', 'C.Admin Error'),
 ('Nomal_Level', '1', 'F.Photo size Error'),
 ('Low_Level', '2', 'D.Icon change of User'),
 ('Low_Level', '1', 'A.Login Error'),
 ('Low_Level', '1', 'I.Image box Error'),
 ('Low_Level', '1', 'K.Background Color Error')]

Upvotes: 1

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