Chapter 2: File Handling in Python

Chapter 2: File Handling in Python

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Proper sequence of file handling:

open → read/write → close

read → open → close

close → open → read

write → close → open

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open() returns:

String

Integer

File object

Boolean

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append mode does NOT:

Delete data

Add data

Create file

Move pointer to end

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read() without argument reads:

One line

Entire file

One word

Nothing

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Text files are faster than binary files:

True

False

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File pointer initially at:

End

Beginning

Middle

Random

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EOF means:

End of file

Error of file

End of function

None

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Which is invalid mode?

r

w

x

rw

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Which mode allows both read & write?

r

w

r+

a

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File must be closed to:

Free memory

Save data

Both a & b

None

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CSV files store data in:

Rows & columns

Binary format

Images

Objects

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csv.reader() returns:

String

List

Integer

File object

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csv.writer() is used for:

Reading CSV

Writing CSV

Deleting CSV

Editing CSV

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Module used for CSV:

csv

file

os

sys

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CSV stands for:

Comma Separated Values

Character Separated Values

Column Stored Values

Computer Stored Values

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Binary files store:

Characters

Objects

Only numbers

Only strings

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load() is used to:

Store

Retrieve object

Delete

Modify

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dump() is used to:

Load object

Store object

Delete object

Print object

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Pickle module is used for:

Reading text

Writing text

Object serialization

Printing

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Binary files use mode:

r

w

rb/wb

a

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seek(offset,2) refers to:

Beginning

Current

End

None

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seek(offset,1) refers to:

Beginning

Current position

End

Error

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seek(0) moves pointer to:

End

Beginning

Middle

Random

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tell() returns:

File size

Current position

File name

Mode

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seek() is used to:

Read file

Move file pointer

Close file

Write file

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Append mode adds data at:

Beginning

End

Middle

Anywhere

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Writing in ‘w’ mode removes:

Nothing

Old content

Only last line

First line

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writelines() writes:

Single string

List of strings

Integer

File object

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write() returns:

Data

Number of characters written

File object

Boolean

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Method to write into file:

write()

read()

input()

print()

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File pointer moves after reading:

Backward

Forward

Fixed

Random

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readlines() returns:

String

Integer

List of lines

Tuple

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Method to read one line:

readline()

read()

readlines()

line()

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read(n) reads:

n lines

n characters

n words

n bytes only

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Method to read entire file:

read()

write()

append()

close()

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Mode ‘a’ positions pointer at:

Beginning

Middle

End

Random

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Mode ‘w’ creates file if not exists:

True

False

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Mode ‘a’ means:

Read

Write

Append

Binary

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Mode ‘w’ does:

Reads file

Appends data

Overwrites file

Deletes file

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Mode ‘r’ means:

Write

Read

Append

Binary

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File object represents:

Data

File pointer

Connection between program & file

File name

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Which function closes a file?

close()

end()

exit()

stop()

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Default mode of open():

w

r

a

rb

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Syntax of opening a file:

open(file, mode)

file.open()

open(mode, file)

read(file)

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Function used to open a file:

open()

file()

fopen()

create()

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Binary files store data in:

Human-readable format

Character format

Binary format

String format

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Text files store data as:

Binary numbers

ASCII characters

Images

Objects

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Which of the following is NOT a file type?

Text file

Binary file

Executable file

Temporary variable

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Files store data in:

Decimal

Binary form

Hexadecimal

Unicode only

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A file is:

Temporary storage

Permanent storage on disk

RAM location

Variable

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