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Python: Read the current line from a given CSV file

Python module: Exercise-4 with Solution

Write a Python program to read the current line from a given CSV file. Use csv.reader

open(file) function open the "employees.csv" with file as the "f". Call csv.reader(f) to generate an object which will iterate over each line in the given "employees.csv" file. Pass in the reader object to next(csv_reader) to get a single line from the .csv file.

Sample Solution:

Python Code:

import csv
f = open("employees.csv", newline='')
csv_reader = csv.reader(f)
print(next(csv_reader))
print(next(csv_reader))
print(next(csv_reader))

Sample Output:

['employ_id', 'first_name', 'last_name', 'email', 'phone_number', 'hire_date', 'job_id', 'salary', 'commission_pct', 'manager_id', 'department_id']
['100', 'Steven', 'King', 'SKING', '515.123.4567', '1987-06-17', 'AD_PRES', '24000', '', '', '90']
['101', 'Neena', 'Kochhar', 'NKOCHHAR', '515.123.4568', '1987-06-18', 'AD_VP', '17000', '', '100', '90']

Flowchart:

Flowchart: Read the current line from a given CSV file.

Python Code Editor:


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Previous: Write a Python program to parse a given CSV string and get the list of lists of string values.
Next: Write a Python program to skip the headers of a given CSV file.

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Python: Tips of the Day

Inverts a dictionary with non-unique hashable values:

Example:

def tips_collect_dictionary(obj):
  inv_obj = {}
  for key, value in obj.items():
    inv_obj.setdefault(value, list()).append(key)
  return inv_obj
ages = {
  "Owen": 25,
  "Jhon": 25,
  "Pepe": 15,
}
print(tips_collect_dictionary(ages))

Output:

{25: ['Owen', 'Jhon'], 15: ['Pepe']}

 





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