Help with list sorting

[gonzo620]

Can someone help with my assignment. I have most of the code written theres just a few errors I need help with.
the text file and assignment: https://transfernow.net/49ffh2n6pjez

The code:

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with open('cities.txt','r', encoding = 'cp1252') as fin: # opens file with read permission         import math         season = input('Will you take your vacation during summer or winter? ')     climate = input('Do you want to go to a warm or a cold place? ')         coldsummer = [] # these are empty lists that will be filled in later     warmsummer = []     coldwinter = []     warmwinter = []                 data = fin.read().splitlines(True)             for line in data[1:-1]:         line = line.split('\t') # splits elements in line with a tab             lat = line[0] # these assign variables to certain parts of the file         long = line[1]         city = line[2]                       lat_deg = int(lat[0:2].strip('°').strip('N').strip('S')) # strips non integer parts         lat_min = int(lat[3:5].strip('°').strip('N').strip('S'))         long_deg = int(long[0:2].strip('°').strip('E').strip('W'))         long_min = int(long[3:5].strip('°').strip('E').strip('W'))             lat_DMS = lat_deg + (lat_min/60) # converts to degree-minute-second         lat_rad = lat_DMS*(math.pi/180) # converts to radian         long_DMS = long_deg + (long_min/60)         long_rad = long_DMS*(math.pi/180)             R = 6360 # assumed radius of Earth         Mercedlat_DMS = 37 + 22/60 # coordinate for Merced, CA in degree-minute-second         Mercedlat_rad = Mercedlat_DMS*(math.pi/180) # in radians         Mercedlong_DMS = 107 + 25/60         Mercedlong_rad = Mercedlong_DMS*(math.pi/180)             distance = 2*R*math.sin(math.sqrt(math.sin((lat_rad - Mercedlat_rad)/2)**2 + # distance formula                                           math.cos(lat_rad)*math.cos(Mercedlat_rad) *                                           math.sin((long_rad - Mercedlong_rad)/2)**2))**-1         line.append(distance)             if lat_deg > 66: # these if statements will fill in lists with appropriate values             coldsummer.append(line)             coldwinter.append(line)         elif lat_deg > 35 and lat_deg < 66:             warmsummer.append(line)             coldwinter.append(line)         else:             warmsummer.append(line)             warmwinter.append(line)            def sortByDistance(cityStats):             return cityStats[len(cityStats)-1]            """ The key argument requires a function or method that will act upon each item in the list.         The function defined above should suffice in this case.         In effect, list.sort() does this with more finesse:               length = len(self)             for i in range(length):                 if key(self[i]) > key(self[i + 1]):                     swap(self[i], self[i + 1]) """                               coldsummer.sort(key = sortByDistance)         warmsummer.sort(key = sortByDistance)         coldwinter.sort(key = sortByDistance)         warmwinter.sort(key = sortByDistance)                  for x in warmsummer: # the for loops will take desired list and print values             if season == 'summer':                 if climate == 'warm':                     print(x[2])         for x in coldsummer:             if season == 'summer':                 if climate == 'cold':                     print(x[2])         for x in warmwinter:             if season == 'winter':                 if climate == 'warm':                     print(x[2])         for x in coldwinter:             if season == 'winter':                 if climate == 'cold':                     print(x[2])

Any help would be greatly appreciated. Thank!

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Can someone help with my assignment. I have most of the code written theres just a few errors I need help with.
the text file and assignment: https://transfernow.net/49ffh2n6pjez

The code:

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with open('cities.txt','r', encoding = 'cp1252') as fin: # opens file with read permission         import math         season = input('Will you take your vacation during summer or winter? ')     climate = input('Do you want to go to a warm or a cold place? ')         coldsummer = [] # these are empty lists that will be filled in later     warmsummer = []     coldwinter = []     warmwinter = []                 data = fin.read().splitlines(True)             for line in data[1:-1]:         line = line.split('\t') # splits elements in line with a tab             lat = line[0] # these assign variables to certain parts of the file         long = line[1]         city = line[2]                       lat_deg = int(lat[0:2].strip('°').strip('N').strip('S')) # strips non integer parts         lat_min = int(lat[3:5].strip('°').strip('N').strip('S'))         long_deg = int(long[0:2].strip('°').strip('E').strip('W'))         long_min = int(long[3:5].strip('°').strip('E').strip('W'))             lat_DMS = lat_deg + (lat_min/60) # converts to degree-minute-second         lat_rad = lat_DMS*(math.pi/180) # converts to radian         long_DMS = long_deg + (long_min/60)         long_rad = long_DMS*(math.pi/180)             R = 6360 # assumed radius of Earth         Mercedlat_DMS = 37 + 22/60 # coordinate for Merced, CA in degree-minute-second         Mercedlat_rad = Mercedlat_DMS*(math.pi/180) # in radians         Mercedlong_DMS = 107 + 25/60         Mercedlong_rad = Mercedlong_DMS*(math.pi/180)             distance = 2*R*math.sin(math.sqrt(math.sin((lat_rad - Mercedlat_rad)/2)**2 + # distance formula                                           math.cos(lat_rad)*math.cos(Mercedlat_rad) *                                           math.sin((long_rad - Mercedlong_rad)/2)**2))**-1         line.append(distance)             if lat_deg > 66: # these if statements will fill in lists with appropriate values             coldsummer.append(line)             coldwinter.append(line)         elif lat_deg > 35 and lat_deg < 66:             warmsummer.append(line)             coldwinter.append(line)         else:             warmsummer.append(line)             warmwinter.append(line)            def sortByDistance(cityStats):             return cityStats[len(cityStats)-1]            """ The key argument requires a function or method that will act upon each item in the list.         The function defined above should suffice in this case.         In effect, list.sort() does this with more finesse:               length = len(self)             for i in range(length):                 if key(self[i]) > key(self[i + 1]):                     swap(self[i], self[i + 1]) """                               coldsummer.sort(key = sortByDistance)         warmsummer.sort(key = sortByDistance)         coldwinter.sort(key = sortByDistance)         warmwinter.sort(key = sortByDistance)                  for x in warmsummer: # the for loops will take desired list and print values             if season == 'summer':                 if climate == 'warm':                     print(x[2])         for x in coldsummer:             if season == 'summer':                 if climate == 'cold':                     print(x[2])         for x in warmwinter:             if season == 'winter':                 if climate == 'warm':                     print(x[2])         for x in coldwinter:             if season == 'winter':                 if climate == 'cold':                     print(x[2])

Any help would be greatly appreciated. Thank!

Mainly the issues are with my sorting

[j.crater]

It would be helpful if you provided sample input data you use, the (incorrect) result you get, and result you want to get.