Python: Find the second lowest total marks of any student(s) from the given names and total marks of each student using lists and Lambda
Python Collections: Exercise-16 with Solution
Write a Python program to find the second lowest total marks of any student(s) from the given names and marks of each student using lists and lambda. Input number of students, names and grades of each student.
Sample Solution:
Python Code:
students = []
sec_name = []
second_low = 0
n = int(input("Input number of students: "))
for _ in range(n):
s_name = input("Name: ")
score = float(input("Total marks: "))
students.append([s_name,score])
print("\nNames and Marks of all students:")
print(students)
order =sorted(students, key = lambda x: int(x[1]))
for i in range(n):
if order[i][1] != order[0][1]:
second_low = order[i][1]
break
print("\nSecond lowest Marks: ",second_low)
sec_student_name = [x[0] for x in order if x[1] == second_low]
sec_student_name.sort()
print("\nNames:")
for s_name in sec_student_name:
print(s_name)
Sample Output:
Input number of students: 3 Name: Avik Das Total marks: 89 Name: ayan Roy Total marks: 75 Name: Sayan Dutta Total marks: 93 Names and Marks of all students: [['Avik Das ', 89.0], ['ayan Roy', 75.0], ['Sayan Dutta', 93.0]] Second lowest Marks: 89.0 Names: Avik Das
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Python: Tips of the Day
Find current directory and file's directory:
To get the full path to the directory a Python file is contained in, write this in that file:
import os dir_path = os.path.dirname(os.path.realpath(__file__))
(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)
To get the current working directory use
import os cwd = os.getcwd()
Documentation references for the modules, constants and functions used above:
- The os and os.path modules.
- The __file__ constant
- os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
- os.path.dirname(path) (returns "the directory name of pathname path")
- os.getcwd() (returns "a string representing the current working directory")
- os.chdir(path) ("change the current working directory to path")
Ref: https://bit.ly/3fy0R6m
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