Python String Exercises
String Exercise 6
def reverse(astring):
bstring = astring[::-1]
return bstring
print(reverse("chicken"), )
String Exercise 7
def reverse(astring):
bstring = astring[::-1]
return bstring
def mirror(astring):
bstring = astring[::-1]
return astring + bstring
print(mirror("good"), )
String Exercise 11
def remove(sub_str, the_str):
find = the_str.find(sub_str)
if find < 0: # the string isn't found
return the_str
return_str = the_str[:find] + the_str[find + len(sub_str):]
return return_str
print(remove('an', 'banana'), )
String Exercise 12
sentence = "This is a practice sentence."
remove_list = ['practice']
word_list = sentence.split()
print(' '.join([i for i in word_list if i not in remove_list]))
Python List Exercises
List Exercise 7
def odd_count(number):
# make a counting variable
count_total = 0
# is it odd?
for i in number:
if i % 2 == 1:
count_total += 1
return count_total
print(odd_count([1,3,4,3,5,6,6,7,3,4]))
List Exercise 8
def even_sum(number):
# make a counting variable
count_total = 0
# is it even?
for i in number:
if i % 2 == 0:
count_total = count_total + i
return count_total
print(even_sum([2,4,3,5,6,5,4,7]))
List Exercise 9
def neg_sum(number):
# make a counting variable
count_total = 0
# is it negative?
for i in number:
if i < 0:
count_total = count_total + i
return count_total
print(neg_sum([2,3,1,4,5,6,4,8,9]))
List Exercise 14
def replace_word(a_text, old, new):
a_text = a_text.replace(old, new)
return a_text
print(replace_word("this is a test script.", "test", "working"))
