Auto-emailing invoices to clients

#python #tutorial #productivity

I've been working on invoice generator for a while and wanted to share what I learned.

The problem

Create professional PDF invoices in seconds with customizable templates, automatic calculations, and client management. Perfect for freelancers and small businesses who need clean invoices fast.

What I built

Here are the main features I ended up shipping:

Professional PDF invoice generation
Customizable templates with logo and branding
Client database with auto-fill
Tax calculation and multi-currency support
Invoice history and payment status tracking

Code sample

# Basic structure
class Bot:
    def __init__(self, config):
        self.config = config

    def run(self):
        while True:
            self.scan()
            self.execute()