The document explains the CSV (comma-separated values) file format and provides an example of data contained within such a file. It also covers programming best practices, including the use of meaningful variable names, adding comments for clarity, and proper whitespace usage to enhance code readability. Various code snippets illustrate these concepts.

29. CSV Files The CSV (Comma Separated Values) is a special text file format in which rows of
data are present and the individual data elements are separated by commas.
The csv files have the extension .csv
Example for data contained in csv file
Raghu,23,100 110
Tisha,45,230
Yatin,67,90

31. https://teachcomputerscience.com/python-resources/files/
#f=open("story.txt","x")
f=open("story.txt","w")
f.write("I Love Python!")
#f=open("story.txt","r")
#print(f. read())
f=open("story.txt","a")
f.write("and its easy to learn.")
f=open("story.txt","r")
print(f. read())
#import os
#os.remove("story.txt")

40. Meaningful Variables: In high-level programming language we can use clear and meaningful
variable names.
Example: radius = 5
area = 3.14 * radius * radius
Comments: Add brief comments to explain complex sections or clarify intentions.
Example:
height = 5
width=5
# area calculation of rectangle
area = height* width
Whitespace Usage: Proper spacing enhances readability and clarity in code.
Example:
a=7
b=3
If a>b:
print(“a is greater number”)