Pymaxe: The Complete Beginner’s Guide

How to Build Your First Project with Pymaxe

1. Project overview

• Goal: Create a small CLI tool that processes CSV data and outputs summary statistics (row count, column means, missing values).
• Assumption: Pymaxe is a Python framework installed via pip and provides project scaffolding, CLI helpers, and data utilities.

2. Prerequisites

• Python 3.10+ installed
• pip available
• Terminal/command line access

3. Setup (commands)

1. Create project directory and virtual environment

bash
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mkdir pymaxe-csv-tool cd pymaxe-csv-tool python -m venv venv source venv/bin/activate# use venv\Scripts\activate on Windows

2. Install Pymaxe and dependencies

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pip install pymaxe pandas 

3. Initialize Pymaxe project scaffold

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pymaxe init –name pymaxe-csv-tool 

4. Project structure (example)

• pymaxe-csv-tool/
  • pymaxeconfig.yml
  • src/
    • main.py
    • cli.py
    • processor.py
  • tests/
  • README.md

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from pymaxe import CLI  # assumed helper
from .processor import summarize_csv 
cli = CLI(name=“pymaxe-csv-tool”)

@cli.command()
def summarize(path: str):
    ”““Summarize CSV file at path”“”
    summary = summarizecsv(path)
    for k, v in summary.items():
        print(f”{k}: {v}“)

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import pandas as pd 
def summarize_csv(path: str) -> dict:
    df = pd.read_csv(path)
    summary = {
        “rows”: len(df),
        “columns”: len(df.columns),
        “missing_values”: int(df.isna().sum().sum())
    }
    # compute numeric column means
    numeric = df.select_dtypes(“number”)
    means = numeric.mean().todict()
    summary[“means”] = {k: float(v) for k, v in means.items()}
    return summary 

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from .cli import cli 
def main():
    cli.run()

if name == “main”:
    main()

bash
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python -m src.main summarize data/sample.csv 

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from src.processor import summarize_csv def test_summarize(tmp_path):
    p = tmp_path / “t.csv”
    p.write_text(“a,b\n1,2\n3,”)
    summary = summarizecsv(str(p))
    assert summary[“rows”] == 2
    assert “a” in summary[“means”]

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pip install pytest pytest 

toml
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[project.scripts]
pymaxe-csv-tool = “src.main:main”