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+--- Thread: how to get vairable to sort with list? (/thread-15180.html)
how to get vairable to sort with list? - DouTh - Jan-07-2019
analyst = list([304, 213, 175, 379, 572, 801, 630]) print(list(analyst)) print(sorted(analyst)) analyst[0] = "Monday " analyst[1] = "Tuesday " analyst[2] = "Wednesday " analyst[3] = "Thursday " analyst[4] = "Friday " analyst[5] = "Saturday " analyst[6] = "Sunday " print(list(analyst)) print(sorted(analyst)) # i am trying to get two types of information, first the list from monday - sunday with numbers from each day # the secound print i am trying to get the list with numbers sorted from lowest to highest and the variable with string sorted from lowest to highest # i get the variable to go from a - z in order but i want them to follow the same order as the list
RE: how to get vairable to sort with list? - buran - Jan-07-2019
Note that what you do is to replace the values in the original list, i.e. you have lost the numbers.
values = list([304, 213, 175, 379, 572, 801, 630])
weekdays = ['Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', 'Sunday']
# data as list of tuples
data = list(zip(values, weekdays))
print(sorted(data))
print('\n\n')
data = list(zip(weekdays, values))
print(sorted(data, key=lambda x: x[1]))
print('\n\n')
from operator import itemgetter
print(sorted(data, key=itemgetter(1)))
print('\n\n')
# data as dict
data = dict(zip(weekdays, values))
print(sorted(data.items(), key=lambda x: x[1]))
# or alternatives
print(dict(sorted(data.items(), key=lambda x: x[1]))) # as of 3.7 order of insertion of dict elements is preserved
print(sorted(data.items(), key=itemgetter(1)))
print(dict(sorted(data.items(), key=itemgetter(1))))
print('\n\n')
# now going fancy with namedtuple from collections
from collections import namedtuple
Record = namedtuple('Record', ['day', 'value'])
data = [Record(day, value) for day, value in zip(weekdays, values)]
print(sorted(data, key=lambda x: (x.value, x.day)))Output:[(175, 'Wednesday'), (213, 'Tuesday'), (304, 'Monday'), (379, 'Thursday'), (572,
'Friday'), (630, 'Sunday'), (801, 'Saturday')]
[('Wednesday', 175), ('Tuesday', 213), ('Monday', 304), ('Thursday', 379), ('Fri
day', 572), ('Sunday', 630), ('Saturday', 801)]
[('Wednesday', 175), ('Tuesday', 213), ('Monday', 304), ('Thursday', 379), ('Fri
day', 572), ('Sunday', 630), ('Saturday', 801)]
[('Wednesday', 175), ('Tuesday', 213), ('Monday', 304), ('Thursday', 379), ('Fri
day', 572), ('Sunday', 630), ('Saturday', 801)]
{'Wednesday': 175, 'Tuesday': 213, 'Monday': 304, 'Thursday': 379, 'Friday': 572
, 'Sunday': 630, 'Saturday': 801}
[('Wednesday', 175), ('Tuesday', 213), ('Monday', 304), ('Thursday', 379), ('Fri
day', 572), ('Sunday', 630), ('Saturday', 801)]
{'Wednesday': 175, 'Tuesday': 213, 'Monday': 304, 'Thursday': 379, 'Friday': 572
, 'Sunday': 630, 'Saturday': 801}
[Record(day='Wednesday', value=175), Record(day='Tuesday', value=213), Record(da
y='Monday', value=304), Record(day='Thursday', value=379), Record(day='Friday',
value=572), Record(day='Sunday', value=630), Record(day='Saturday', value=801)]
>>>