pycells-mds 0.3.0

Multidimensional Data Structures for Python.

pycells_mds

Multidimensional Data Structures

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🔍 Overview

PyCells MDS is a Python library for spreadsheet-like multidimensional data structures with hierarchical addressing.
It supports Excel-style formulas, programmable cells, cell groups, hierarchical cell_id, JSON export, and a full Python API.

PyCells can be used to build accounting systems, warehouse structures, CRM/ERP modules, and dynamic spreadsheet engines.

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✨ Features

• Tables and sheets
• Named cells (A1, B2, …)
• Hierarchical cell_id (e.g. 0000.0001.0001.0003)
• Automatic recalculation engine
• Excel-style formulas
• Ranges (A1:A10)
• Built-in function set (SUM, IF, UPPER, etc.)
• Cell groups
• Notes and styles
• JSON / FLAT / TREE export
• Select queries
• Cursor manager (Redis + SQL optional)
• SQLite / PostgreSQL support

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🛠 Installation

pip install pycells_mds

Requirements

Python 3.9+

fastapi

SQLAlchemy

NumPy

Redis (optional, CursorManager)

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🚀 Quick Start

1) Initialize database

from pycells_mds.session import init_db
from pycells_mds.core import PyCells

init_db({
    "engine": "sqlite",
    "path": "my_cells.db"
})

pc = PyCells()
print("Database connected.")

2) Register user

user = pc.safe_register_user("user1", "pw123", "[e-mail]")
user_id = user.id

3) Create table and sheet

tbl = pc.ctable("Finance", user_id)
sheet = pc.get_or_create_list("Finance", "Main", user_id)

🔢 Writing and Reading Cells

New API (with hierarchical cell_id)

pc.write(
    table="Finance",
    sheet="Main",
    cell_name="A1",
    cell_id="0000.0001.0001.0001",
    data="100",
    user_id=user_id
)

pc.write("Finance", "Main", "A2", "0000.0001.0001.0002", "200", user_id)
pc.write("Finance", "Main", "A3", "0000.0001.0001.0003", "=A1+A2", user_id)

print(pc.read("Finance", "Main", "A3", user_id))


# → 300.0

Read with full cell info

value = pc.read("Finance", "Main", "A1", user_id)

# returns dict:
# { "name": "A1", "value": "100", "data": "100", "cell_id": "0000.0001.0001.0001" }

📦 Export

JSON export (dictionary)

json_data = pc.export("Finance", "Main", mode="json", user_id=user_id)

print(json_data)

Result:

{
    "A1": {"id": 1, "name": "A1", "value": "100", "data": "100", "cell_id": "0000.0001.0001.0001"},
    "A2": {...}
}

FLAT export (list)

flat = pc.export("Finance", "Main", mode="flat", user_id=user_id)

Example:

[
    {"id": 1, "name": "A1", ...},
    {"id": 2, "name": "A2", ...}
]

TREE export (hierarchical by cell_id)

tree = pc.export_tree("Finance", "Main", user_id)

Example:

{
  "0000": {
    "0001": {
      "0001": {
        "0001": {...},
        "0002": {...}
      }
    }
  }
}

🔢 Formulas

Supported operators

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( + ) , ( - ) , ( * ) , ( / ) , ( ^ ) , ( % )

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Supported constructs

• ranges (A1:A10)

• nested formulas

• built-in functions

• SUM, MAX, MIN, AVERAGE

• ABS, ROUND, POWER

• INT, VALUE

• UPPER, LOWER, CONCAT, TEXTJOIN

• IF

• TODAY, NOW, DATE, YEAR, MONTH, DAY

• TEXT

• ETEXT — Exel notation text

• np.* — NumPy access for ranges

Example:

pc.write("Finance", "Main", "B1", "=SUM(A1:A3)", user_id)
pc.write("Finance", "Main", "B2", "=A1^A2", user_id)

🎯 Groups

Create group

sheet.add_group("Totals", ["A1", "A2", "A3"], style="color:red;")

Get group cells

cells = sheet.get_group_cells("Totals")
print([c.name for c in cells])

Update style

sheet.update_group_style("Totals", "background:yellow;")

Delete group

sheet.delete_group("Totals")

🖱 CursorManager (optional)

from pycells_mds.managers import CursorManager

CursorManager.set_cursor(
    user_id=user_id,
    table_id=sheet.model.table_id,
    list_id=sheet.model.id,
    cells=["A1", "A2"]
)

CursorManager.get_active(user_id)

🔄 Recalculation

pc.recalc("Finance", "Main", user_id)
📄 Select cells

result = pc.select("Finance", "Main", "A1", "A3", "C1", user_id=user_id)

Returns:

{
  "A1": {"name": "A1", "value": "100", ...},
  "A3": {...},
  "C1": {...}
}

🌐 Backup / Restore

Backup (JSON)

data = pc.export("Finance", "Main", "json", user_id)

Restore

for name, c in data.items():
    pc.write("Finance", "Main", name, c["cell_id"], c["data"], user_id)

📡 FastAPI Integration

Run API server

pip install pycells_mds
pycells_api

Or manually:

uvicorn pycells_api.main:app --host 0.0.0.0 --port 8000

PyCells works perfectly as a backend engine behind FastAPI.

Typical endpoints:

• /write

• /read

• /export/json

• /export/tree

• /recalc

🧩 Use Cases

• Accounting structures (plan of accounts)

• Warehouse hierarchy

• Financial models

• CRM/ERP spreadsheets

• Document engines

• Structured multidimensional data

Run demo (Tk)

pycells_demo_tk

📜 License

• Versions < 1.0.0 are licensed under the MIT License
• Versions >= 1.0.0 are distributed under a commercial license

📞 Contact

Email: [e-mail]

WhatsApp: [phone]

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