IT Automation With Python

#!/usr/bin/env python3

import csv

def read_employees(csv_file_location):
  csv.register_dialect('empDialect', skipinitialspace=True, strict=True)
  employee_file = csv.DictReader(open(csv_file_location), dialect = 'empDialect')
  employee_list = []
  for data in employee_file:
    employee_list.append(data)
  return employee_list

def process_data(employee_list):
  department_list = []
  for employee_data in employee_list:
    department_list.append(employee_data['Department'])
  
  department_data = {}
  for department_name in set(department_list):
    department_data[department_name] = department_list.count(department_name)
  return department_data

def write_report(dictionary, report_file):
  with open(report_file, "w+") as f:
    for k in sorted(dictionary):
      f.write(str(k)+':'+str(dictionary[k])+'\n')
    f.close()

employee_list = read_employees('/home/<student-lab-id>/data/employees.csv')

def process_data(employee_list):

  department_list = []
  for employee_data in employee_list:
    department_list.append(employee_data['Department'])

  department_data = {}
  for department_name in set(department_list):
    department_data[department_name] = department_list.count(department_name)
  return department_data

dictionary = process_data(employee_list)

def write_report(dictionary, report_file):
  with open(report_file, "w+") as f:
    for k in sorted(dictionary):
      f.write(str(k)+':'+str(dictionary[k])+'\n')
    f.close()

write_report(dictionary, '/home/<student-lab-id>/test_report.txt')

#!/usr/bin/env python3

#Import libraries
import csv
import re

def contains_domain(address, domain):
  """Returns True if the email address contains the given,domain,in the domain position, false if not."""
  domain = r'[\w\.-]+@'+domain+'$'
  if re.match(domain,address):
    return True
  return False
def replace_domain(address, old_domain, new_domain):
  """Replaces the old domain with the new domain in the received address."""
  old_domain_pattern = r'' + old_domain + '$'
  address = re.sub(old_domain_pattern, new_domain, address)
  return address

def main():
  """Processes the list of emails, replacing any instances of the old domain with the new domain."""
  old_domain, new_domain = 'abc.edu', 'xyz.edu'
  csv_file_location = '/home/<student-lab-id>/data/user_emails.csv'
  report_file = '/home/<student-lab-id>/data' + '/updated_user_emails.csv'
  user_email_list = []
  old_domain_email_list = []
  new_domain_email_list = []

  with open(csv_file_location, 'r') as f:
    user_data_list = list(csv.reader(f))
    user_email_list = [data[1].strip() for data in user_data_list[1:]]
    for email_address in user_email_list:
      if contains_domain(email_address, old_domain):
  with open(report_file, 'w+') as output_file:
    writer = csv.writer(output_file)
    writer.writerows(user_data_list)
    output_file.close()

    with open(report_file, 'w+') as output_file:
    writer = csv.writer(output_file)
    writer.writerows(user_data_list)
    output_file.close()

main()

#!/usr/bin/env python3
import sys
import os
import re
def error_search(log_file):
  error = input("What is the error? ")
  returned_errors = []
  with open(log_file, mode='r',encoding='UTF-8') as file:
    for log in  file.readlines():
      error_patterns = ["error"]
      for i in range(len(error.split(' '))):
        error_patterns.append(r"{}".format(error.split(' ')[i].lower()))
      if all(re.search(error_pattern, log.lower()) for error_pattern in error_patterns):
        returned_errors.append(log)
    file.close()
  return returned_errors
  
def file_output(returned_errors):
  with open(os.path.expanduser('~') + '/data/errors_found.log', 'w') as file:
    for error in returned_errors:
      file.write(error)
    file.close()
if __name__ == "__main__":
  log_file = sys.argv[1]
  returned_errors = error_search(log_file)
  file_output(returned_errors)
  sys.exit(0)