FPP Python assignment no 8 to 9. Theory, Flowchart and Algorithm.

 

Assignment No:08

Problem Statement:  Write a python program to accept a file name from the user and perform the following operations 

1.Display the first N line of the file.

2.Find the frequency of occurrence of the word accepted from the user in the file.

Learning Objectives:

• To understand the basics about python file handling.
• To learn how to create a file in various mode and how to perform various operation on it.

Learning Outcomes:

• Upon completing this lab exercise, the learner will be able to
• Able to create file, write content in it and close the file. 
• Able to open file in read mode, move the file pointer in any location inside the file. 
• Understand the difference between data streaming and data buffering.
• Implementation of file program for user specific requirements.

Theory:

1. What is data streaming?
2. What is data buffering?
3. What is serial data?
4. What is Input Output Stream and what is buffer?
5. Explain in detail different file access modes.
6. Write a simple file handling program for explanation of seek () function.
7. Write a simple file handling program for explanation of tell () function.
8. What types of exceptions occurs in file handling program and how to handle those.
9. How to write inside file and how to read one character at a time from file.
10. Differentiate between readline () and readlines () function in file handling. 

Note:

To get above question answers click the following link. Click the below link:

Write a python program to accept a file name from the user and perform operations. - DATA STRUCTURES AND ALGORITHMS

Algorithm:

Step 1: Start

Step 2: Accept the file name from the user.

Step 3: We are assuming that file is already created on HDD, so we simply open it into read mode.

Step 4: We are asking user how many n lines you want to display from file.

Step 5: Displaying the first n lines from the file.

Step 6: We are asking user to enter which word occurance he/she wants to find from the file. 

Step 7: Counting the occurance of that word from the file.

Step 8: Showing the occurance of that word to the user.

Step 9: Stop

Conclusion: Hence, we learn how to create the file on secondary storage using python programming. also, we learn various operations on file to process the data as per user requirement.

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Assignment No:09

Problem Statement:  

Write Python program covers basic functionalities provided by the math module.

Learning Objectives:

• To understand the basics about python modules in python.
• To learn various built-in modules inside python.
• To learn regular expression and its methods in python.

Learning Outcomes:

• Upon completing this lab exercise, the learner will be able to
• Able to create modules inside python.
• Able to create our own library by wrapping various function related with each other.
• Understand the various built-in modules inside python like math module
• Implementation of basic functionalities provided by the math module.

Theory:

1. What is Module in python and how to create it?
2. What is loading and reloading of module?
3. Explain dir() function in python?
4. How the module search path work in the python?
5. List any nine methods of math modules.

Note:

To get above question answers click the following link. Click the below link:

Modules and Regular Expressions in Python. - DATA STRUCTURES AND ALGORITHMS

Algorithm:

Step 1: Start

Step 2: Display two constants of math module

Step 3: Call to basic functions in math modules.

Step 4: Call three Trigonometric functions from math modules.

Step 5: Call two Logarithmic functions from math module.

Step 6: Call two Exponential functions from math module. 

Step 7: Call two Rounding functions from math module.

Step 8: Call factorial and GCD functions from math module.

Step 9: Call Degree and Radians functions from math module.

Step 10: Stop

Conclusion: Hence, we learn all the functionalities inside math module.