Must be done in python and need each 3 parts successfully done. Also don't copy/paste the program from a previous answer here on Chegg. It's incomplete.

The file UN.txt gives the data about 193 members of the United Nations. Each line of the file contains four pieces of data about a country - name, continent, population (in millions), and land area (in square miles).

1. Create a class named Nation with four instance variables to hold the data for a country and a method named popDensity that calculates the population density of the country. Write a program that uses the class to create a dictionary of 193 items, where each item of the dictionary has the form name of a country: Nation object for that country Use the file un.txt to create the dictionary, and save the dictionary in a pickled binary file named nationDict.dat . Also, save the class Nation in a file named nation.py

2. Write a program that requests the name of a U.N member country as input, and then displays infor- mation about the country. Use a pickled binary file nationsDist.dat and the file nation.py created in part (1).

3. Write a program that requests the name of a continent as input, and then displays the names (in descending order) of the five most densely populated U.N member countries in that continent. Use the pickled binary file nationsDict.dat and the file nation.py created in part (1).

Afghanistan,Asia,31.8,251772 Albania,Europe,3.0,11100 Algeria,Africa,38.3,919595 Andorra,Europe,.085,181 Angola,Africa,19.1,481354 Antigua and Barbuda,North America,.091,108 Argentina,South America,44.0,1068302 Armenia,Asia,3.1,11506 Australia,Australia/Oceania,22.5,2967909 Austria,Europe,8.2,32383 Azerbaijan,Asia,9.7,33436 Bahamas,North America,.32,5358 Bahrain,Asia,1.3,253 Bangladesh,Asia,166.3,55599 Barbados,North America,.29,167 Belarus,Europe,9.6,80155 Belgium,Europe,10.4,11787 Belize,North America,.34,8867 Benin,Africa,10.2,43484 Bhutan,Asia,.73,14824 Bolivia,South America,10.6,424163 Bosnia and Herzegovina,Europe,3.9,19767 Botswana,Africa,2.2,224606 Brazil,South America,202.7,3287597 Brunei Darussalam,Asia,.42,2226 Bulgaria,Europe,6.9,42823 Burkina Faso,Africa,18.4,105792 Burundi,Africa,10.4,10745 Cambodia,Asia,15.5,69898 Cameroon,Africa,23.1,183568 Canada,North America,34.8,3855000 Cape Verde,Africa,.54,1557 Central African Republic,Africa,5.3,240534 Chad,Africa,11.4,495753 Chile,South America,17.4,292183 China,Asia,1355.7,3696100 Colombia,South America,46.2,440839 Comoros,Africa,.77,863 Costa Rica,North America,4.8,19730 Cote D'Ivoire,Africa,22.8,124502 Croatia,Europe,4.5,21831 Cuba,North America,11.0,42803 Cyprus,Asia,1.2,3572 Czech Republic,Europe,10.6,30450 Democratic People's Republic of Korea,Asia,24.9,46528 Democratic Republic of the Congo,Africa,77.4,905355 Denmark,Europe,5.6,16640 Djibouti,Africa,.81,8958 Dominica,North America,.073,290 Dominican Republic,North America,10.4,18704 Ecuador,South America,14.0,98985 Egypt,Africa,86.9,387048 El Salvador,North America,6.2,8124 Equatorial Guinea,Africa,.72,10828 Eritrea,Africa,6.3,45405 Estonia,Europe,1.3,17413 Ethiopia,Africa,96.6,426371 Fiji,Australia/Oceania,.90,7056 Finland,Europe,5.3,130596 France,Europe,66.3,211209 Gabon,Africa,1.7,103347 Gambia,Africa,1.9,4007 Georgia,Asia,4.9,26916 Germany,Europe,81.0,137847 Ghana,Africa,25.8,92098 Greece,Europe,11.8,50944 Grenada,North America,.11,132 Guatemala,North America,14.7,42042 Guinea,Africa,11.5,94926 Guinea Bissau,Africa,1.7,13948 Guyana,South America,.74,83000 Haiti,North America,10.2,10714 Honduras,North America,8.6,43278 Hungary,Europe,10.0,35919 Iceland,Europe,.32,39770 India,Asia,1236.3,1269210 Indonesia,Asia,253.6,735355 Iran,Asia,80.8,636372 Iraq,Asia,32.6,169234 Ireland,Europe,4.8,31520 Israel,Asia,7.8,8019 Italy,Europe,61.7,116346 Jamaica,North America,2.9,4444 Japan,Asia,127.1,145883 Jordan,Asia,7.9,45495 Kazakhstan,Asia,18.0,1052085 Kenya,Africa,45.0,224080 Kiribati,Australia/Oceania,.10,280 Kuwait,Asia,2.7,6880 Kyrgyzstan,Asia,5.6,77181 Lao People's Democratic Republic,Asia,6.8,91429 Latvia,Europe,2.2,24938 Lebanon,Asia,5.9,4035 Lesotho,Africa,1.9,12727 Liberia,Africa,4.1,43000 Libyan Arab Jamahiriya,Africa,6.2,679359 Liechtenstein,Europe,.037,62 Lithuania,Europe,3.5,25173 Luxembourg,Europe,.52,998 Madagascar,Africa,23.2,226597 Malawi,Africa,17.4,45747 Malaysia,Asia,30.1,127355 Maldives,Asia,.39,115 Mali,Africa,16.5,478839 Malta,Europe,.41,121 Marshall Islands,Australia/Oceania,.071,69 Mauritania,Africa,3.5,397954 Mauritius,Africa,1.3,787 Mexico,North America,120.3,761606 Micronesia,Australia/Oceania,.11,271 Monaco,Europe,.031,0.76 Mongolia,Asia,3.0,603909 Montenegro,Europe,.65,5019 Morocco,Africa,33.0,172414 Mozambique,Africa,24.7,309496 Myanmar,Asia,55.7,261227 Namibia,Africa,2.2,318696 Nauru,Australia/Oceania,.0095,8 Nepal,Asia,31.0,56827 Netherlands,Europe,16.59,16033 New Zealand,Australia/Oceania,4.4,103738 Nicaragua,North America,6.1,50193 Niger,Africa,17.5,489678 Nigeria,Africa,177.2,356669 Norway,Europe,5.1,148746 Oman,Asia,3.2,119498 Pakistan,Asia,196.2,310403 Palau,Australia/Oceania,.021,177 Panama,North America,3.6,29157 Papua New Guinea,Australia/Oceania,6.6,178703 Paraguay,South America,6.7,157048 Peru,South America,30.1,496226 Philippines,Asia,107.7,115831 Poland,Europe,38.3,120726 Portugal,Europe,10.9,35645 Qatar,Asia,2.1,4416 Republic of Korea,Asia,49.0,38622 Republic of Moldova,Europe,3.6,13067 Republic of the Congo,Africa,4.7,132047 Romania,Europe,21.7,92043 Russian Federation,Europe,142.5,6592800 Rwanda,Africa,12.3,10169 Saint Kitts and Nevis,North America,.052,101 Saint Lucia,North America,.16,239 Saint Vincent and the Grenadines,North America,.10,150 Samoa,Australia/Oceania,.20,1093 San Marino,Europe,.033,23.5 Sao Tome and Principe,Africa,.19,372 Saudi Arabia,Asia,27.3,829996 Senegal,Africa,13.6,76000 Serbia,Europe,7.2,34116 Seychelles,Africa,.092,174 Sierra Leone,Africa,5.7,27699 Singapore,Asia,5.6,274.2 Slovakia,Europe,5.4,18932 Slovenia,Europe,2.0,7827 Solomon Islands,Australia/Oceania,.61,43 Somalia,Africa,10.4,246201 South Africa,Africa,48.4,471443 South Sudan,Africa,11.6,239285 Spain,Europe,47.7,195364 Sri Lanka,Asia,22.9,25332 Sudan,Africa,35.5,967495 Suriname,South America,.57,63251 Swaziland,Africa,1.4,6704 Sweden,Europe,9.7,173732 Switzerland,Europe,8.1,15940 Syrian Arab Republic,Asia,18.0,71479 Tajikistan,Asia,8.1,55251 Thailand,Asia,67.7,198115 The former Yugoslav Republic of Macedonia,Europe,2.1,205 Timor-Leste,Asia,1.2,5743 Togo,Africa,7.4,21925 Tonga,Australia/Oceania,.11,289 Trinidad and Tobago,North America,1.2,1978 Tunisia,Africa,10.9,63170 Turkey,Asia,81.6,302535 Turkmenistan,Asia,5.1,188456 Tuvalu,Australia/Oceania,.011,10 Uganda,Africa,35.9,91136 Ukraine,Europe,44.3,233090 United Arab Emirates,Asia,5.6,32278 United Kingdom,Europe,66.7,94526 United Republic of Tanzania,Africa,50.0,364898 United States,North America,318.9,3794066 Uruguay,South America,3.3,68037 Uzbekistan,Asia,28.9,172742 Vanuatu,Australia/Oceania,.27,4706 Venezuela,South America,28.9,353841 Vietnam,Asia,93.4,128527 Yemen,Asia,26.1,203849 Zambia,Africa,14.7,290587 Zimbabwe,Africa,13.8,150871