Exercises¶

1. At the halfway point during the Rio Olympics, the United States had 70 medals, Great Britain had 38 medals, China had 45 medals, Russia had 30 medals, and Germany had 17 medals. Create a dictionary assigned to the variable medal_count with the country names as the keys and the number of medals the country had as each key’s value.

1.1 Create a dictionary that keeps track of the USA’s Olympic medal count. Each key of the dictionary should be the type of medal (gold, silver, or bronze) and each key’s value should be the number of that type of medal the USA’s won. Currently, the USA has 33 gold medals, 17 silver, and 12 bronze. Create a dictionary saved in the variable medals that reflects this information.

1.2 You are keeping track of olympic medals for Italy in the 2016 Rio Summer Olympics! At the moment, Italy has 7 gold medals, 8 silver metals, and 6 bronze medals. Create a dictionary called olympics where the keys are the types of medals, and the values are the number of that type of medals that Italy has won so far.

2. Given the dictionary swimmers, add an additional key-value pair to the dictionary with "Phelps" as the key and the integer 23 as the value. Do not rewrite the entire dictionary.

2.1 Every four years, the summer Olympics are held in a different country. Add a key-value pair to the dictionary places that reflects that the 2016 Olympics were held in Brazil. Do not rewrite the entire dictionary to do this!

2.2 Add the string “hockey” as a key to the dictionary sports_periods and assign it the value of 3. Do not rewrite the entire dictionary.

3. Update the value for “Phelps” in the dictionary swimmers to include his medals from the Rio Olympics by adding 5 to the current value (Phelps will now have 28 total medals). Do not rewrite the dictionary.

3.1 The dictionary golds contains information about how many gold medals each country won in the 2016 Olympics. But today, Spain won 2 more gold medals. Update golds to reflect this information.

4. Create a list of the countries that are in the dictionary golds, and assign that list to the variable name countries. Do not hard code this.

5. We have a dictionary of the specific events that Italy has won medals in and the number of medals they have won for each event. Assign to the variable events a list of the keys from the dictionary medal_events. Do not hard code this.

6. Provided is the dictionary, medal_count, which lists countries and their respective medal count at the halfway point in the 2016 Rio Olympics. Using dictionary mechanics, assign the medal count value for "Belarus" to the variable belarus. Do not hardcode this.

6.1 The dictionary total_golds contains the total number of gold medals that countries have won over the course of history. Use dictionary mechanics to find the number of golds Chile has won, and assign that number to the variable name chile_golds. Do not hard code this!

6.2 Provided is a dictionary called US_medals which has the first 70 metals that the United States has won in 2016, and in which category they have won it in. Using dictionary mechanics, assign the value of the key ''Fencing'' to a variable fencing_value. Remember, do not hard code this.