Python

What is the result of the following operation int(3.2)?

3

What is the type of the following variable: a=True?

Bool

Given myvar = 'hello', how would you convert myvar into uppercase? len(myvar) myvar.find('hello') myvar.upper() myvar.sum()

myvar.upper()

The variables A='1' and B='2' ,what is the result of the operation A+B?

'12'

What do the following lines of code do? with open("Example3.txt","a") as file1: file1.write("This is line C\n") Read the file "Example3.txt" Write to the file "Example3.txt" Append the file "Example3.txt"

Append the file "Example3.txt"

Consider the tuple tuple1=("A","B","C" ), what is the result of the following operation tuple1[-1]?

"C"

How do you cast the list 'A' to the set 'a'?

a=set(A)

What is the result of running the following lines of code ? class Points(object): def __init__(self,x,y): self.x=x self.y=y def print_point(self): print('x=',self.x,' y=',self.y) p2=Points(1,2) p2.x=2 p2.print_point()

x=2 y=2

Consider the Set: V={'A','B'}, what is the result of V.add('C')?

{'A','B','C'}

Consider the following line of code: with open(example1,"r") as file1: What mode is the file object in?

Read

Consider the tuple A=((11,12),[21,22]), that contains a tuple and list. What is the result of the following operation A[1]:

[21,22]

In Python, if you executed name = 'Lizz', what would be the output of print(name[0:2])? Lizz L Liz Li

Li

What is an important difference between lists and tuples? Lists can't contain a string Tuples can only have integers Lists and tuples are the same. Lists are mutable tuples are not There is no zeros in lists

Lists are mutable tuples are not

What is the output of the following lines of code: x="Go" if(x!="Go"): print('Stop') else: print('Go ') print('Mike')

Go Mike

What is the output of the following lines of code: x=1 if(x!=1): print('Hello') else: print('Hi') print('Mike') Hi Mike Mike Hello Mike The Mike

Hi Mike

After applying the following method,L.append(['a','b']), the following list will only be one element longer. Ture False

True

What is the result of the following operation in Python: 3 + 2 * 2 10 7 9 12

7

What is the syntax to obtain the first element of the tuple: A=('a','b','c') A[1] A[0] A[:]

A[0]

What is the result of the following operation '1,2,3,4'.split(',')

['1','2','3','4']

What is the output of the following few lines of code ? A=['1','2','3'] for a in A: print(2*a)

'11' '22' '33'

In Python, what is the result of the following operation '1'+'2' '2' '3'term-4 '12' 3

'12'

Consider the string A='1234567', what is the result of the following operation: A[1::2]

'246'

Concatenate the following lists A=[1,'a'] and B=[2,1,'d']:

A+B

Consider the variable F="You are wrong", Convert the values in the variable F to uppercase?

F.upper()

What do the following lines of code do? with open("Example1.txt","r") as file1: FileContent=file1.readlines() print(FileContent) Read the file "Example1.txt" Write to the file "Example1.txt" Append the file "Example1.txt"

Read the file "Example1.txt"

What is the result of running the following lines of code ? class Points(object): def __init__(self,x,y): self.x=x self.y=y def print_point(self): print('x=',self.x,' y=',self.y) p1=Points(1,2) p1.print_point()

x=1 y=2

What is the output of the following few lines of code ? A=['1','2','3'] for a in A: print(2*a) 2 4 6 '2' '4' '6' '11' '22' '33' A B C

'11' '22' '33'

Consider the following Python Dictionary: Dict={"A":1,"B":"2","C":[3,3,3],"D":(4,4,4),'E':5,'F':6} , what is the result of the following operation: Dict["D"] 4 3 [333] (4, 4, 4) error

(4, 4, 4)

what is the result of the following lines of code: a=np.array([0,1]) b=np.array([1,0]) np.dot(a,b) 1 array([1,1]) 0 array([0,0])

0

How many duplicate elements can you have in a set? 1 0, you can only have one unique element in a set 100 depends on the number of elements in your set.

0, you can only have one unique element in a set

In Python, if you executed var = '01234567', what would be the result of print(var[::2])? 0246 1357 1234567 8903

0246

What does the following loop print? for n in range(3): print(n+1)

1 2 3

Consider the tuple A=((11,12),[21,22]), that contains a tuple and list. What is the result of the following operation A[0][1]:

12

how many iterations are performed in the following loop? for n in range(3): print(n)

3

Consider the string Name="Michael Jackson" , what is the result of the following operation Name.find('el')

5

What is the correct way to sort the list 'B' using a method, the result should not return a new list, just change the list 'B'. B.sort() sort(B) sorted(B) B.sorted()

B.sort()

Consider the function Delta, when will the function return a value of 1 def Delta(x): if x==0: y=1; else: y=0; return(y) When the input is anything but 0 When the input in 1 Never When the input is 0

When the input is 0

What do the following lines of code do? with open("Example2.txt","w") as writefile: writefile.write("This is line A\n") writefile.write("This is line B\n") Read the file "Example2.txt" Write to the file "Example2.txt" Append the file "Example2.txt"

Write to the file "Example2.txt"

what are the keys of the of the following {'a':1,'b':2} 1,2 ;,: a,b

a,b

what is the result of the following lines of code: a=np.array([0,1,0,1,0]) b=np.array([1,0,1,0,1]) a*b 0 array([1, 1, 1, 1, 1]) array([0, 0, 0, 0, 0])

array([0, 0, 0, 0, 0])

what is the result of the following lines of code: a=np.array([1,1,1,1,1]) a+10 array([10,10,10,10,10]) array([11, 11, 11, 11, 11]) array([1,1,1,1,1])

array([11, 11, 11, 11, 11])

what is the correct code to perform matrix multiplication on the matrix A and B np.dot(A,B) A*B AxB

np.dot(A,B)

What is the result of applying the following method df.head(), to the dataframe df prints the first row of the dataframe prints the first column of the dataframe prints the first 5 rows of the dataframe prints the dateframe out

prints the first 5 rows of the dataframe

Consider the class Points, what are the data attributes: class Points(object): def __init__(self,x,y): self.x=x self.y=y def print_point(self): print('x=',self.x,'y=',self.y)

self.x self.y