# AMPL and all Solvers are now available as Python Packages

**URL:** <https://discuss.ampl.com/t/ampl-and-all-solvers-are-now-available-as-python-packages/341>\
**Category:** Announcements\
**Tags:** python\
**Created:** [January 24, 2023, 3:14pm UTC](https://discuss.ampl.com/t/ampl-and-all-solvers-are-now-available-as-python-packages/341 "2023-01-24T15:14:59Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![fdabrandao](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.ampl.com/fdabrandao/32/63_2.png) [@fdabrandao](https://discuss.ampl.com/u/fdabrandao)\
**Post date:** [January 24, 2023, 3:14pm UTC](https://discuss.ampl.com/t/ampl-and-all-solvers-are-now-available-as-python-packages/341/1 "2023-01-24T15:14:59Z")

</div>

AMPL and all Solvers are now available as Python Packages:

```bash
# Install Python API for AMPL:
$ python -m pip install amplpy --upgrade

# Install solver modules:
$ python -m amplpy.modules install highs gurobi 

# Activate your AMPL CE license:
$ python -m amplpy.modules run amplkey activate --uuid <license-uuid>

# Import, load, and instantiate in Python:
$ python
>>> from amplpy import AMPL, modules
>>> modules.load() # load all AMPL modules
>>> ampl = AMPL() # instantiate AMPL object

```

[Python API (amplpy) Documentation](https://amplpy.readthedocs.io/)

## Commands available:

### List usage instructions:

```auto
$ python -m amplpy.modules usage

```

### Install modules:

```bash
$ python -m amplpy.modules install <solver 1> <solver 2> ...

```

Example:

```bash
$ python -m amplpy.modules install highs gurobi

```

### Uninstall modules:

```bash
$ python -m amplpy.modules uninstall <solver 1> <solver 2> ...

```

Example:

```bash
$ python -m amplpy.modules uninstall gurobi highs

```

### List installed modules:

```bash
$ python -m amplpy.modules installed

```

Example:

```bash
$ python -m amplpy.modules installed
You have the following modules installed:
	base
	gurobi
	highs

```

### List modules available to be installed:

```bash
$ python -m amplpy.modules available
You can install any of the following modules:
	amplgsl
	baron
	base
	cbc
	coin
	conopt
	copt
	cplex
	gokestrel
	gurobi
	highs
	knitro
	lgo
	lindoglobal
	loqo
	minos
	octeract
	open
	plugins
	snopt
	xpress

```

### Value to append to the environment variable PATH to access modules:

```bash
$ python -m amplpy.modules path

```

Example:

```auto
export PATH=$PATH:`python -m amplpy.modules path`

```

### Generate `requirements.txt` for the modules currently installed

```bash
$ python -m amplpy.modules requirements
--index-url https://pypi.ampl.com
--extra-index-url https://pypi.org/simple
ampl_module_base==20221226
ampl_module_gurobi==20221228
ampl_module_highs==20221228

```

### Run command in the same environment as the modules:

```bash
$ python -m amplpy.modules run <command>

```

Example:

```bash
$ python -m amplpy.modules run ampl -v
AMPL Version 20221013 (Darwin-20.6.0, 64-bit)
Demo license with maintenance expiring 20240131.
ampl:

```

## Also available programmatically

All of this is also available from Python programmatically:

```python
>>> from amplpy import modules
>>> modules.installed()
['base', 'gurobi', 'highs']
>>> modules.available()
['baron', 'cbc', 'lindoglobal', 'xpress', 'gurobi', 'lgo', 'open', 'minos', 'octeract', 'copt', 'plugins', 'amplgsl', 'loqo', 'conopt', 'base', 'cplex', 'snopt', 'coin', 'knitro', 'highs', 'gokestrel']
>>> modules.install('cplex')
>>> modules.installed()
['base', 'cplex', 'gurobi', 'highs']
>>> modules.uninstall('cplex')
>>> modules.installed()
['base', 'gurobi', 'highs']

```

## Docker containers

This also makes AMPL really simple to use with Docker containers:

```Dockerfile
# Use any image as base image
FROM python:3.9-slim-bullseye
RUN python -m pip install amplpy # Install amplpy
RUN python -m amplpy.modules install highs gurobi # Install modules

```