cat ttok/cli.py | llm --system 'Explain this code' -s --gpt4

explanation.md

This code is a command-line script to count and truncate text based on tokens using the tiktoken library and the Click framework for handling command-line arguments.

Here's a breakdown of the code:

1. Import necessary libraries - click, sys, and tiktoken.

2. Define the command-line interface (CLI) using the @click.command() decorator.

3. Define the command-line options using the @click.argument and @click.option decorators:

   • prompt: The text to process, passed as command-line arguments or from standard input.
   • input: File object to read input from.
   • truncate: Number of tokens to truncate the input.
   • model: The model to use for tokenization, defaulting to 'gpt-3.5-turbo'.
   • output_tokens: Flag to output token integers instead of the length of tokens.

4. Define the CLI function cli(), which takes the options as arguments.

5. Inside the cli() function:

   • Check if the given model is valid, otherwise, raise an exception.
   • Read input text either from the provided file or standard input.
   • Call the relevant tiktoken functions to tokenize and possibly truncate the input text.
   • Print the output accordingly, either as token integers, truncated text, or the total number of tokens.

The function also includes a docstring with examples of how to use the command-line script for various operations, like reading input from a file, truncating tokens, and changing the tokenization model.