ENGR 102 Exam
Tested Questions With Revised
Correct Detailed Answers
>Latest Update>>
1. Write the simplest expression that captures the desired comparison.
x is a key in the dict my_dict. - ANSWER x in my_dict
2. Write the simplest expression that captures the desired co...
1. Write the simplest expression that captures the desired comparison.
x is a key in the dict my_dict.
- ANSWER x in my_dict
2. Write the simplest expression that captures the desired comparison.
The character 'G' exists in the string my_str.
- ANSWER 'G' in my_str
3. How do you sort my_list from highest to lowest and then print the reversed
list? for i in reversed(sorted(my_list)):
- ANSWER print(i)
4. What does any(my_list) provide?
- ANSWER If the list contains non-zero elements, any() returns True, else
returns False
5. What does all(my_list) provide?
- ANSWER If the list contains a 0 element, all() returns False because not all
elements are non-zero, else returns True
Assume that my_list is [0, 5, 10, 15].
6. What is returned by any(my_list)? What is returned by all(my_list)?
- ANSWER True, False
,for (index, value) in enumerate(my_list):
print(index, value)
7. First prints the help because we ask for it in the code
then prints the rest of the function bc we call it
def myfunction(a, b=2, c):
return a * b * c
print(myfunction(1, 2, 3)) - ANSWER will print ERRRRROOOORR
to fix it:
def myfunction(a, b=2, c=2):
return a * b * c
print(myfunction(1, 2, 3))
#everything after the first thing you change has to change in the parameters
#maria's clear explanation: "a non default parameter can't follow a default
parameter
#be better Estelle
9. def add1(x):
if x + 1 < 10:
return x + 1
else:
return 'Too big!'
,print(add1(1), add1(24)) - ANSWER 2 Too big!
10. Don't forget: the coma automatically creates a space
x=4
y = timestwo(x)
def timestwo(x):
return x * 2
print(y) - ANSWER ERRRROOOOOR
the y that calls the function is before the function and python is stupid (unlike
java) so it doesn't get it
so u put it after :)
11. also: x in the function is not the same as the x = 4
mydict = {}
mylist = [1, 2, 3, 4, 5]
mydict['Length'] = len(mylist)
mydict['Max'] = max(mylist)
mydict['Min'] = min(mylist)
mydict['Crazy'] = mylist[1] * mylist[3] - mylist[-1]
for i in mydict:
listname.remove(5) - ANSWER pops the last index if you don't specify an
index
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