Your classmate wrote a simple function with two optional arguments: X which defaults to the string “a” and Y, which defaults to the empty list. It concatenates its first argument to itself and then appends that to the end of its second argument. Finally, it prints both arguments. 1 def foo(X = "a", Y = []): X = X + X Y.append(X) print X, Y When she called foo() with no arguments repeatedly, she was surprised and puzzled by the results: 2 به بیا . 3 4 >>> for i in range (4): foo() aa ['aa'] aa ['aa', 'aa'] aa ['aa', 'aa', 'aa'] aa ['aa', 'aa', 'aa', 'aa'] Explain to your classmate what is going on in this Python example and if the results are expected.
Your classmate wrote a simple function with two optional arguments: X which defaults to the string “a” and Y, which defaults to the empty list. It concatenates its first argument to itself and then appends that to the end of its second argument. Finally, it prints both arguments. 1 def foo(X = "a", Y = []): X = X + X Y.append(X) print X, Y When she called foo() with no arguments repeatedly, she was surprised and puzzled by the results: 2 به بیا . 3 4 >>> for i in range (4): foo() aa ['aa'] aa ['aa', 'aa'] aa ['aa', 'aa', 'aa'] aa ['aa', 'aa', 'aa', 'aa'] Explain to your classmate what is going on in this Python example and if the results are expected.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
Can someone please explain to me ASAP??!!!!
![Your classmate wrote a simple function with two optional arguments: X which defaults to the string "a" and
Y, which defaults to the empty list. It concatenates its first argument to itself and then appends that to the end
of its second argument. Finally, it prints both arguments.
1
2
def foo(X = "a", Y = []):
X = X + X
Y.append(X)
print X, Y
4
When she called foo() with no arguments repeatedly, she was surprised and puzzled by the results:
>>> for i in range (4): foo()
aa ['aa']
aa ['aa', 'aa']
aa ['aa', 'aa', 'aa']
aa ['aa', 'aa', 'aa', 'aa']
Explain to your classmate what is going on in this Python example and if the results are expected.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F11ad9986-04b0-4336-8340-a3038312afe8%2F399af39f-4dd7-4f96-bc16-ecd0b968612b%2Fdvys44i_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Your classmate wrote a simple function with two optional arguments: X which defaults to the string "a" and
Y, which defaults to the empty list. It concatenates its first argument to itself and then appends that to the end
of its second argument. Finally, it prints both arguments.
1
2
def foo(X = "a", Y = []):
X = X + X
Y.append(X)
print X, Y
4
When she called foo() with no arguments repeatedly, she was surprised and puzzled by the results:
>>> for i in range (4): foo()
aa ['aa']
aa ['aa', 'aa']
aa ['aa', 'aa', 'aa']
aa ['aa', 'aa', 'aa', 'aa']
Explain to your classmate what is going on in this Python example and if the results are expected.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Recommended textbooks for you
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education