Python Basics

Which of the following code snippets is the correct one for opening the hello.txt file for writing?

• output_file = open("hello.txt", "r")

• output_file = openFile("hello.txt", "w")

• output_file = open("hello.txt", "w")

• output_file = File("hello.txt", "w")

which mode is used to open a file for exclusive creation?

• r

• w

• x

• a

When you open a file using a with statement, Python will ________ the file automatically after you access it.

• close

• reset

• delete

• archive

Which operator can be used on a pathlib.Path object to extend the path it represents with subdirectories or filenames?

• \

• /

• |

• *

What does strip() do?

• removes the content of the file

• add in meta data

• splits the file

• Removes extra data at the beginning / end of the string

var = = {"apple", "banana", "cherry"}, represents:

• sets

• dictionary

• tuple

• list

df.shape is used to index, Datatype and Memory information

• True

• False

Which one is NOT a legal variable name?

• my_Var

• myvar

• my#var

• _myvar

Tuples are mutable.

• True

• false

Before data can be written to or read from a file in Python, the file must be ________ first.

• append

• open

• close

• replace