Defining InfoDB 

InfoDb = []

Adding entries to InfoDB 

InfoDb.append({
    # key-value pairs
    "name": "Safin Singh",
    "age": 16,
    "phone": "858-XXX-XXXX",
    # interests is a list of strs
    "interests": ["tennis", "programming"],
    # grades is a dict
    "grades": {
        "APCSP": "A",
        "APEL": "A",
        "AP Physics": "A",
        "AP Stats": "A"
    }
})

InfoDb.append({
    "name": "Alex Kumar",
    "age": 16,
    "phone": "858-XXX-XXXX",
    "interests": ["basketball"],
    "grades": {
        "APCSP": "A",
        "APEL": "A",
        "AP Physics": "A",
        "AP Calculus BC": "A"
    }
})

InfoDb.append({
    "name": "Kalani Cabral-Omana",
    "age": 16,
    "phone": "619-XXX-XXXX",
    "interests": ["soccer", "surfing"],
    "grades": {
        "APCSP": "A",
        "APEL": "B",
        "AP Physics": "B",
        "AP Stats": "A"
    }
})

InfoDb.append({
    "name": "Navan Yatavelli",
    "age": 15,
    "phone": "858-XXX-XXXX",
    "interests": ["football", "walking my dog"],
    "grades": {
        "APCSP": "A",
        "American Lit": "A",
        "AP Stats": "A",
        "AP Bio": "A"
    }
})

Printing InfoDB 

def format_entry(entry):
    # use format string to print entries
    print("""{}
    Age: {}
    Phone: {}
    Interests: {}
    Grades:""".format(entry["name"], entry["age"], entry["phone"], ", ".join(entry["interests"])))
    # loop through classes to print each individual grade
    for cl, grade in entry["grades"].items():
        print("        {}: {}".format(cl, grade))
    print()

# loop through each entry in InfoDb by value
for entry in InfoDb:
    format_entry(entry)

For loop with index 

for i in range(len(InfoDb)):
    # access the element at index i of InfoDb
    format_entry(InfoDb[i])

While loop 

i = 0
# cap the loop at len(InfoDb) runs
n = len(InfoDb)

# while the counter is less than list length...
while i < n:
    # print entry at index i
    format_entry(InfoDb[i])
    # increment counter
    i+=1

Recursion 

n = len(InfoDb)

# define recursive function
def printer(i):
    # if you are at the end of the list, quit
    if i == n:
        return

    # print entry at index i
    format_entry(InfoDb[i])

    # call function with the next index
    printer(i+1)

# call function starting at index 0
printer(0)

Adding an entry to InfoDB with user input 

name = input("What's your name? ")
age = int(input("How old are you? "))
phone = input("What's your phone number? ")

# get interests as a comma-separated list and split on the comma
interests = input("What are your interests (comma-separated)? ").split(",")

# see above
classes = input("What classes are you in (comma-separated)? ").split(",")
grades = input(
    "What are your grades in each of your respective classes (comma-separated)? ").split(",")
# transform both arrays into an array of tuples and then to a dict
class_grades = dict(zip(classes, grades))

InfoDb.append({
    "name": name,
    "age": age,
    "phone": phone,
    "interests": interests,
    "grades": class_grades
})

My partner's list 

InfoDb = []

InfoDb.append({
    "FirstName": "samit",
    "LastName": "poojary",
    "DOB": "September 15",
    "Residence": "San Diego",
    "Email": "samit.poojary@gmail.com",
    "Phone": "iphone"
})

#adding extra records to InfoDb

InfoDb.append({
    "FirstName": "Safin",
    "LastName": "Singh",
    "DOB": "July 13",
    "Residence": "San Diego",
    "Email": "safin.singh@gmail.com",
    "Phone": "android"
})
# adding extra records
InfoDb.append({
    "FirstName": "Alex",
    "LastName": "Kumar",
    "DOB": "May 9",
    "Residence": "San Diego",
    "Email": "alex.k.kumar@gmail.com",
    "Phone": "iphone"
})
# Adding one extra item to InfoDb
InfoDb.append({
    "FirstName": "Maxie",
    "LastName": "Kumar",
    "DOB": "November 5",
    "Residence": "San Diego",
    "Email": "maxie.kumar@gmail.com",
    "Phone": "no phone"
})

Modified format_entry for Alex's list 

def format_entry(entry):
    # use format string to print entries
    print("""{} {}
    Date of Birth: {}
    Residence: {}
    Email: {}
    Phone:""".format(
        entry["FirstName"],
        entry["LastName"],
        entry["DOB"],
        entry["Residence"],
        entry["Email"],
        entry["Phone"]
    ))

A quiz using "a list of dictionaries" (?) 

def ask(qna):
    # get question and answer from qna dictionary
    question = qna.keys()[0]

    # get user input
    res = input(question + " ")

    # make comparison case-insensitive (given our answers are lowercase)
    if res.lower() == qna[question]:
        # use string interpolation to print a correct anser
        print("'{}' is the correct answer!".format(res))
        return True
    else:
        # prompt the user to try again if they want to
        again = input("'{}' is incorrect. Try again? [y/N] ".format(res))
        if again == "y":
            # recursively call "ask" function for the retry feature
            return ask(qna)
        else:
            return False

questions_and_answer = [
    # questions taken from previous quiz
    {"What command is used to include other functions that were previously developed?": "import"},
    {"What command is used to evaluate correct or incorrect response in this example?": "if"},
    {"Each 'if' command contains an '_________' to determine a true or false condition?": "expression"},
    {"The two possible boolean values in Python are true and '____'.": "false"},
    {"Python is a(n) [interpreted/compiled] language.": "interpreted"},
    {"A '___' loop can iterate over items in a list.": "for"},
    {"What keyword can be used to create a block that can catch and handle an exception?": "try"},
    {"A function '________' allows the programmer to specify additional info to a function.": "parameter"},
    {"The 'def' keyword is used when defining a '________'.": "function"},
    {"The '_' operator can be used to concatenate two strings.": "+" }
]

# counter for the total correct answers
correct = 0

# loop over all items in the questions_and_answers list
for qna in questions_and_answer:
    if ask(qna):
        # increment the counter if the user gets something correct
        correct += 1

# display the total score at the end with an encouraging message
print("Great job! You got a score of {}%.".format(
    int(100 * correct / len(questions_and_answer))))

Print list backwards 

for entry in InfoDb[::-1]:
    format_entry(entry)