For Loop Challenges

Write a for loop so that every item in the list is printed.¶

In [1]:
lst=["koala", "cat", "fox", "panda", "chipmunk", "sloth", "penguin", "dolphin"]
#Type your answer here.
for x in lst:
    print(x)
koala
cat
fox
panda
chipmunk
sloth
penguin
dolphin

Write a for loop which print "Hello!, " plus each name in the list. i.e.: "Hello!, Sam"¶

In [2]:
lst=["Sam", "Lisa", "Micha", "Dave", "Wyatt", "Emma", "Sage"]
#Type your code here.
for x in lst:
    print("Hello {}!".format(x))
Hello Sam!
Hello Lisa!
Hello Micha!
Hello Dave!
Hello Wyatt!
Hello Emma!
Hello Sage!

Write a for loop that iterates through a string and prints every letter.¶

In [2]:
str="Antarctica"
#Type your code here.
for i in str:
    print(i)
A
n
t
a
r
c
t
i
c
a

Type somecode inside the for loop so that counter variable named c is increased by one each time loop iterates. Can you guess how many times it will add 1?.¶

In [1]:
str="Civilization"

c=0
    #sourcecode will go below
for i in str:
    c = c+1
print(c)
    #sourcecode will go above
12

Using a for loop and .append() method append each item with a Dr. prefix to the lst.¶

Info on the .append() method can be found at https://www.w3schools.com/python/ref_list_append.asp¶

In [3]:
lst1=["Phil", "Oz", "Seuss", "Dre"]
lst2=[]

#Type your answer here.
for x in lst1:
    print("Dr. {}".format(x))
    lst2.append(lst1)
Dr. Phil
Dr. Oz
Dr. Seuss
Dr. Dre

Write a for loop which appends the square of each number to the new list.¶

In [4]:
lst1=[3, 7, 6, 8, 9, 11, 15, 25]
lst2=[]
#Type your answer here.
for x in lst1:
    print("{}".format(x**2))
    lst2.append(lst1)
9
49
36
64
81
121
225
625

Write a for loop using an if statement, that appends each number to the new list if it's positive.¶

In [27]:
lst1=[111, 32, -9, -45, -17, 9, 85, -10]
lst2=[]
#Type your answer here.
for x in lst1:
    if x >= 0:
        print("{}".format(x))
        lst2.append(lst1)
111
32
9
85

Write a for loop which appends the type of each element in the first list to the second list.¶

In [28]:
lst1=[3.14, 66, "Teddy Bear", True, [], {}]
lst2=[]

#Type your answer here.
for x in lst1:
    print("{}".format(type(x)))
    lst2.append(lst1)
<class 'float'>
<class 'int'>
<class 'str'>
<class 'bool'>
<class 'list'>
<class 'dict'>
In [ ]: