Sandbox::https://github.com/JasonLSC/ArithmeticEncodingPython/blob/main/example2.py

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import pyae

# from decimal import getcontext

# Example for encoding a simple text message using the PyAE module.

# Create the frequency table.

frequency_table = {"a": 2,

"b": 3,

"c": 1,

"d": 4}

# Create an instance of the ArithmeticEncoding class.

AE = pyae.ArithmeticEncoding(frequency_table,

save_stages=True)

# Default precision is 28. Change it to do arithmetic operations with larger/smaller numbers.

# getcontext().prec = 28

original_msg = "bdab"

print("Original Message: {msg}".format(msg=original_msg))

# Encode the message

encoded_msg, encoder , interval_min_value, interval_max_value = AE.encode(msg=original_msg,

probability_table=AE.probability_table)

print("Encoded Message: {msg}".format(msg=encoded_msg))

# Decode the message

decoded_msg, decoder = AE.decode(encoded_msg=encoded_msg,

msg_length=len(original_msg),

probability_table=AE.probability_table)

print("Decoded Message: {msg}".format(msg=decoded_msg))

decoded_msg = "".join(decoded_msg)

print("Message Decoded Successfully? {result}".format(result=original_msg == decoded_msg))