How to Install `dask` in Python

v2026.3.0 Data & Science Python >=3.10

Parallel PyData with Task Scheduling

Install pip install dask

What is dask?

Parallel PyData with Task Scheduling

Dask is a flexible parallel computing library for analytics. See documentation for more information.

PyPI page →

Quick Start

Minimal example to get started with dask:

import dask

print(dask.__version__)

Installation

pip (standard)

pip install dask

Virtual environment (recommended)

python -m venv venv
source venv/bin/activate   # Windows: venv\Scripts\activate
pip install dask

pip3

pip3 install dask

conda

conda install -c conda-forge dask

Poetry

poetry add dask

Dependencies

Installing dask will also install these packages:

click cloudpickle fsspec packaging partd pyyaml toolz importlib_metadata

Verify the Installation

After installing, confirm the package is available:

python -c "import dask; print(dask.__version__)"

If this prints a version number, installation succeeded. If you see a ModuleNotFoundError, see the errors section below.

Installation Errors

Common errors when installing dask with pip.

ModuleNotFoundError: No module named 'dask'

Cause: The package is not installed in the current Python environment.

Fix: Run pip install dask. If using a virtual environment, ensure it is activated first.

ModuleNotFoundError: No module named 'dask' (installed but still failing)

Cause: pip installed the package into a different Python than the one running your script.

Fix: Use python -m pip install dask to install into the interpreter you are running.

ImportError: cannot import name 'X' from 'dask'

Cause: The function or class does not exist in the installed version.

Fix: Check the version with pip show dask and upgrade with pip install --upgrade dask.

pip: command not found

Cause: pip is not in PATH or Python was not added to PATH during installation.

Fix: Try python -m pip install dask. On macOS/Linux try pip3.

PermissionError: [Errno 13] Permission denied

Cause: No write access to the system Python package directory.

Fix: Use a virtual environment, or add --user: pip install --user dask

SSL: CERTIFICATE_VERIFY_FAILED

Cause: pip cannot verify PyPI's SSL certificate — common behind corporate proxies.

Fix: Try: pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org dask

MemoryError when loading data

Cause: Dataset is too large to fit in RAM.

Fix: Read in chunks, filter columns on load, or consider Polars/Dask for out-of-core processing.

Recent Releases

Version	Released
`2026.3.0` latest	2026-03-18
`2026.1.2`	2026-01-30
`2025.3.1`	2026-01-29
`2025.9.2`	2026-01-26
`2026.1.0`	2026-01-16

Full release history on PyPI →

Manage dask

Upgrade to latest version

pip install --upgrade dask

Install a specific version

pip install dask==2026.3.0

Uninstall

pip uninstall dask

Check what is installed

pip show dask

Last updated: 2026-04-11 • Data from PyPI

How to Install dask in Python