PyPoll_Challenge.py

# -*- coding: UTF-8 -*-
"""PyPoll Homework Challenge Solution."""

# Add our dependencies.
import csv
import os

# Add a variable to load a file from a path.
file_to_load = os.path.join("Resources", "election_results.csv")
# Add a variable to save the file to a path.
file_to_save = os.path.join("analysis", "election_analysis.txt")

# Initialize a total vote counter.
total_votes = 0

# Candidate Options and candidate votes.
candidate_options = []
candidate_votes = {}

# County list and county votes dictionary

county_list = []
county_votes = {}

# Track the winning candidate, vote count and percentage
winning_candidate = ""
winning_count = 0
winning_percentage = 0

# Largest county and county voter turnout

largest_county = ""
voter_turnout = 0


# Read the csv and convert it into a list of dictionaries
with open(file_to_load) as election_data:
    reader = csv.reader(election_data)

    # Read the header
    header = next(reader)

    # For each row in the CSV file.
    for row in reader:

        # Add to the total vote count
        total_votes = total_votes + 1

        # Get the candidate name from each row.
        candidate_name = row[2]

        # Extracting the county name from each row

        county_name = row[1]


        # If the candidate does not match any existing candidate add it to
        # the candidate list
        if candidate_name not in candidate_options:

            # Add the candidate name to the candidate list.
            candidate_options.append(candidate_name)

            # And begin tracking that candidate's voter count.
            candidate_votes[candidate_name] = 0

        # Add a vote to that candidate's count
        candidate_votes[candidate_name] += 1

        # If the county does not match any existing county in the county list
        # add to list

        if county_name not in county_list:


            # Adds the existing county to the list of counties
            county_list.append(county_name)


            # Tracking the county's vote count
            county_votes[county_name] = 0


        # Adds a vote to that county's vote count
        county_votes[county_name] += 1



# Save the results to our text file.
with open(file_to_save, "w") as txt_file:

    # Print the final vote count (to terminal)
    election_results = (
        f"\nElection Results\n"
        f"-------------------------\n"
        f"Total Votes: {total_votes:,}\n"
        f"-------------------------\n\n"
        f"County Votes:\n")
    print(election_results, end="")

    txt_file.write(election_results)

    # For loop to get the county from the county dictionary
    for county_name in county_votes:

        # Retrieving the county vote count
        cvotes = county_votes.get(county_name)


        # Percentage of votes for the county
        cvote_percentage = float(cvotes) / float(total_votes) * 100


         # Printing the county results to the terminal
        county_results = (
            f"{county_name}: {cvote_percentage:.1f}% ({cvotes:,})\n")
        print(county_results)


         # Saving the county votes to a text file
        txt_file.write(county_results)

         # If statement to determine the winning county and get its vote count
        if (cvotes > voter_turnout):
            voter_turnout = cvotes
            largest_county = county_name
    

    # Printing the county with the largest turnout to the terminal.
    turnout = (f"-------------------------\n"
        f"Largest County Turnout: {largest_county}\n"
        f"-------------------------\n")
    print(turnout)


    # 8: Saving the county with the largest turnout to a text file
    txt_file.write(turnout)


    # Save the final candidate vote count to the text file.
    for candidate_name in candidate_votes:

        # Retrieve vote count and percentage
        votes = candidate_votes.get(candidate_name)
        vote_percentage = float(votes) / float(total_votes) * 100
        candidate_results = (
            f"{candidate_name}: {vote_percentage:.1f}% ({votes:,})\n")

        # Print each candidate's voter count and percentage to the
        # terminal.
        print(candidate_results)
        #  Save the candidate results to our text file.
        txt_file.write(candidate_results)

        # Determine winning vote count, winning percentage, and candidate.
        if (votes > winning_count) and (vote_percentage > winning_percentage):
            winning_count = votes
            winning_candidate = candidate_name
            winning_percentage = vote_percentage

    # Print the winning candidate (to terminal)
    winning_candidate_summary = (
        f"-------------------------\n"
        f"Winner: {winning_candidate}\n"
        f"Winning Vote Count: {winning_count:,}\n"
        f"Winning Percentage: {winning_percentage:.1f}%\n"
        f"-------------------------\n")
    print(winning_candidate_summary)

    # Save the winning candidate's name to the text file
    txt_file.write(winning_candidate_summary)