This tiny Python app, powered by TextBlob, quickly measures the polarity and subjectiviy of a piece of text.

sentiment_analyzer.py

# This Python program quickly measures the polarity and subjectivity of a piece of text.

from time import sleep
from textblob import TextBlob

def print_header():
    print("*"*67)
    print("PYTHON SENTIMENT TESTER (Powered by TextBlob)")
    print()
    print("POLARITY:")
    print()
    print("-1.0 means a negative statement and 1.0 means a positive statement.\n")
    print("SUBJECTIVITY:")
    print()
    print("0.0 is very objective and 1.0 is very subjective.\n")
    print("*"*67)

def run_event_loop():
    while True:
        print()
        text = input("Type or paste in a message below. There is no character limit. Press <enter> when finished.\n\n")
        blob = create_blob(text)
        display_results(blob)
        sleep(5)
        response = input("Would you like to analyze another piece of text? y or n\n\n").lower()
        if response != "y":
            print("Have a nice day!")
            break
    
def create_blob(text):
    """Convert a string to a TextBlob object"""
    return TextBlob(text)

def get_polarity(blob):
    """Rates the polarity of a text, where -1.0 means a negative statement
    and 1.0 means a positive statement."""
    if blob.polarity > 0:
        polarity = "positive"
    elif blob.polarity < 0:
        polarity = "negative"
    else:
        polarity = "neutral"
    return polarity

def get_subjectivity(blob):
    """Rates the subjectivity of a text, where 0.0 is very objective and
    1.0 is very subjective."""
    if blob.subjectivity > 0.5:
        subjectivity = "subjective"
    elif blob.subjectivity == 0.5:
        subjectivity = "neutral"
    elif blob.subjectivity < 0.5:
        subjectivity = "objective"
    return subjectivity

def display_results(blob):
    """Displays polarity and subjectivity for the text user supplied."""
    print()
    print("Calculating, one sec...")
    sleep(2)
    print("Almost done...")
    sleep(2)
    print("Presto!\n""")
    print(f"Text Polarity: {get_polarity(blob)} ({round(blob.polarity, 2)})")
    print(f"Text Subjectivity: {get_subjectivity(blob)} ({round(blob.subjectivity, 2)})")
    print()
    
if __name__ == "__main__":
    print_header()
    run_event_loop()