Answered: Computer Science Annotate code:…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Computer Science

Annotate code:

os.chdir('Use your path here')
os.getcwd()

emails = []

readfile= open(r'fraud_emails.txt', 'r'). read()

sep_emails = resplit(r'From r', readfile)
sep_emails.pop(0)

for item in sep_emails:
email_dict = {}

sender = re.search(r'From:.*', item)

if sender != None:
s_email = research(r'\w\S*@.*\w', sender.group())
else:
s_email = None
s_name = None

if s_email != None:
sender_email = s_email.group()
else:
sender_email = None
emails_dict['sender_email'] = sender_email

if s_name != None:
sender_name = re.sub('\s*<', '',re.sub(':\s*','', s_name.group()))
else:
sender_name = None
email_dict['sender_name'] = sender_name

recipient = re.search(r'To:.*', item)

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