Installation¶

Requirements¶

Python 3.10 or later
No API key required — all REST and WebSocket endpoints used by dccd are public.

Optional system dependency: rclone is needed only if you use the daemon’s remote-sync feature (storage.remotes in the YAML config).

Install with pip¶

Core package (historical REST downloads + WebSocket streams):

pip install dccd

With daemon extras (CLI scheduler, APScheduler, YAML config, rclone sync):

pip install dccd[daemon]

Extras summary¶

Extra	Command	Adds
(core)	`pip install dccd`	`histo_dl`, `continuous_dl`, Polars I/O
`daemon`	`pip install dccd[daemon]`	CLI (`dccd` command), APScheduler, PyYAML, Typer, rclone sync
`ui`	`pip install dccd[daemon,ui]`	Web UI / JSON API (`dccd ui`): FastAPI, uvicorn, Jinja2
`dev`	`pip install dccd[dev]`	pytest, ruff, mypy, interrogate — for contributors only

Install from source¶

git clone https://github.com/ArthurBernard/Download_Crypto_Currencies_Data.git
cd Download_Crypto_Currencies_Data
pip install -e ".[daemon,dev]"

Verify the installation¶

import dccd
print(dccd.__version__)

Or via the CLI (daemon extra required):

dccd --version

Shell auto-completion¶

The dccd CLI supports tab-completion for shells via Typer. Run once to install:

# Bash
dccd --install-completion bash

# Zsh
dccd --install-completion zsh

# Fish
dccd --install-completion fish

After installing, restart your shell (or source ~/.bashrc / source ~/.zshrc). Auto-completion covers subcommand names, --exchange values, and --pairs values.