dates

School

University Of Arizona *

*We aren’t endorsed by this school

Course

120

Subject

Computer Science

Date

Feb 20, 2024

Type

Pages

Uploaded by MateClover22302

""" File: dates.py Author: Nick Brobeck Course: CSC 120, Semester 2, 2024 Purpose: This program manages a database of dates and events. It allows users to insert events for specific dates, retrieve events for specific dates, and handle dates in different formats. """ class Date: """Class to represent a date with associated events.""" def __init__(self, date, event): """Initialize Date object. Parameters: date (str): The date in canonical format. event (str): The event associated with the date. """ self.date = date self.events = {event} def add_event(self, event): """Add an event to the Date object. Parameters: event (str): The event to add. """ self.events.add(event) def __str__(self): """Return string representation of Date object.""" sorted_events = sorted(self.events) return "{}: {}".format(self.date, ", ".join(sorted_events)) class DateSet: """Class to represent a collection of dates.""" def __init__(self): """Initialize DateSet object.""" self.dates = {} def add_date(self, date): """Add a date to the DateSet. Parameters: date (Date): The Date object to add. """ self.dates[date.date] = date def __str__(self): """Return string representation of DateSet object.""" sorted_dates = sorted(self.dates.values(), key=lambda x: x.date) result = [] for date in sorted_dates: result.append(str(date)) return "\n".join(result)

def canonicalize_date(date_str): """Convert date string to canonical format. Parameters: date_str (str): The date string to canonicalize. Returns: str: The date in canonical format. """ parts = date_str.split() if len(parts) == 3: # Parsing date with MonthName dd yyyy format month_abbr = {'Jan': 1, 'Feb': 2, 'Mar': 3, 'Apr': 4,\ 'May': 5, 'Jun': 6, 'Jul': 7, 'Aug': 8,\ 'Sep': 9, 'Oct': 10, 'Nov': 11, 'Dec': 12} month = month_abbr.get(parts[0][:3], None) if month is None: print("Error: Invalid month abbreviation") return None day = int(parts[1]) year = int(parts[2]) elif "/" in date_str: # Parsing date with mm/dd/yyyy format parts = date_str.split("/") month = int(parts[0]) day = int(parts[1]) year = int(parts[2]) else: # Parsing date with yyyy-mm-dd format parts = date_str.split("-") year = int(parts[0]) month = int(parts[1]) day = int(parts[2]) return "{:d}-{:d}-{:d}".format(year, month, day) def main(): """Main function to read input file and process operations.""" input_file = input() date_set = DateSet() file = open(input_file, 'r') for line in file: operation, rest = line.strip().split(' ', 1) if operation == 'I': # Insert operation date_str, event = rest.split(':', 1) date_canonical = canonicalize_date(date_str.strip()) if date_canonical not in date_set.dates: date = Date(date_canonical, event.strip()) date_set.add_date(date) else: date_set.dates[date_canonical].add_event(event.strip()) elif operation == 'R': # Retrieve operation date_str = rest.strip() date_canonical = canonicalize_date(date_str) if date_canonical in date_set.dates: for event in sorted(date_set.dates[date_canonical].events): print("{}: {}".format(date_canonical, event))

else: # Invalid operation print("Error - Illegal operation.") file.close() main()

Your preview ends here

Eager to read complete document? Join bartleby learn and gain access to the full version

Access to all documents
Unlimited textbook solutions
24/7 expert homework help

Related Documents

STAT311W24Week2.pdf

131.05.Lab.py

Q.docx

Section 12.15 - CSE 230_ Computer Organization & Assembly Language _ zyBooks.pdf

jj.pdf

cyb 210 4-3 .docx

SYSC-4101_Lab6.pdf

Ibarra_TechJourney2 (1) (1).pdf

Aaliyah Rodriguez Ch. 1 Exercises.docx

Worksheet - String Methods & Formatting.docx

Klimesh_rattleran_vernacularly.docx

Hocus-pocussed_mapo_drive.docx

Recommended textbooks for you

Microsoft Visual C#

Computer Science

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Cengage Learning,

EBK JAVA PROGRAMMING

Computer Science

ISBN:9781337671385

Author:FARRELL

Publisher:CENGAGE LEARNING - CONSIGNMENT

Programming with Microsoft Visual Basic 2017

Computer Science

ISBN:9781337102124

Author:Diane Zak

Publisher:Cengage Learning

Programming Logic & Design Comprehensive

Computer Science

ISBN:9781337669405

Author:FARRELL

Publisher:Cengage

SEE MORE TEXTBOOKS

Recommended textbooks for you

Microsoft Visual C#
Computer Science
ISBN:9781337102100
Author:Joyce, Farrell.
Publisher:Cengage Learning,
EBK JAVA PROGRAMMING
Computer Science
ISBN:9781337671385
Author:FARRELL
Publisher:CENGAGE LEARNING - CONSIGNMENT
Programming with Microsoft Visual Basic 2017
Computer Science
ISBN:9781337102124
Author:Diane Zak
Publisher:Cengage Learning
Programming Logic & Design Comprehensive
Computer Science
ISBN:9781337669405
Author:FARRELL
Publisher:Cengage