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12th Computer Science Monthly Test - 2 ( Python and CSV files)

St. Britto Hr. Sec. School - Madurai

12th Computer Science Monthly Test - 2 ( Python and CSV files)-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

_______command arranges a CSV file list value in ascending order.

listname.sort ()
listname.ascd ()
listname.asc ()
sorting ()

Which python file mode open a file for exclusive creation?

'x'
'w'
't'
'a'

How many rows at a time the writerrow( ) method writes in a CSV file?

1
2
3
many

In dialects the parameter_______ is used for removing whitespaces after the delimiter.

skip space
initial space
skip initial space
skip

A CSV file is also known as a ….

Flat File
3D File
String File
Random File

Which of the following is not a mode used while opening a file?

p
w
r
a

Python’s CSV module only accepts _________as line terminator.

\r
\n
\a
\r or \n

Which of the following creates an object which maps data to a dictionary?

listreader()
reader()
tuplereader()
DicReader ()

By default CSV files should open automatically in

OpenOffice
Python
Excel
Text Editor

What is the output of the following program? import csv
d=csv.reader(open('c:\PYPRG\ch13\city.csv'))
next(d)
for row in d:
print(row)
if the file called “city.csv” contain the following details
chennai,mylapore
mumbai,andheri

chennai,mylapore
mumbai,andheri
chennai,mumba
chennai,mylapore
mumbai,andheri

Which of the following built-in function Python has to open a file?

read ()
open ()
reader ()
openfile ()

Which of the following module is provided by Python to do several operations on the CSV files?

py
xls
csv
os

CSV files opened in binary mode returns________

bits
Mbs
bytes
GBs

Making some changes in the data of the existing file or adding more data is called

Editing
Appending
Modification
Alteration

In__________mode, CSV file data format is strings.

read mode
write mode
process mode
text mode

Part - B

Generic 2 - Answer All Question

Write is purpose of using skipinitialspace parameter.

What is list?

What is CSV File?

Write a note an reader().
What is use of next() function?

What is dialect?

What are used a dictionary keys?

What is the use of close () method?

Part - C

Generic 3 - Answer All Question

Write a program to create a new normal CSV file to store data.

Write a note on open() function of python. What is the difference between the two methods?

What are the ways to write a new or edit are existing CSV file in python?

Write a program to read a file with default delimiter comma.
What is the difference between reader() and DictReader() function?

Write a Python program to modify an existing file.

How will you create CSV normal file?

What are the different ways of reading a CSV file using reader() method?

Part - D

Generic 5 - Answer All Question

Write a program to read the CSV file with user defined delimiter.

Write a program to read the CSV file and store A column value in A list for sorting.
Write a program to read CSV file with user Defined Delimiter into a Dictionary.

How will you write the CSV file with custom denote characters? Explain with an example.

Write a program to read a specific column in a CSV file.

Write a program to read the CSV file through python using reader () method.

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