find_julia

This Python package provides functions for searching the file system for the path to a Julia executable or installing Julia if none is found. It is meant to be used by other Python projects that need to find a Julia installation. It also may be used interactively.

Install

pip install find_julia

Several locations are searched for Julia installations, including the default locations used by jill.py and by juliaup.

Examples

Simplest use

Find julia

In [1]: from find_julia import find

In [2]: find()
Out[2]: '/usr/bin/julia'

Find or install julia

In [1]: from find_julia import find_or_install

In [2]: find_or_install()
Out[2]: '/usr/bin/julia'

Function find

find(version_spec=None, check_exe=False, find_all=False, strict=False, env_var=None, no_dist=True)

Calling find() will use reasonable defaults.

Parameters

• env_var : The environment variable to check for a julia path. If this variable is set and the exectuable satisfies version_spec, then it will be preferred to all other paths. Default: "JULIA".
• version_spec : A Julia compatibility version specification as a str or object. The returned executable must satisfy this specification. Default: "^1".
• strict : If True then prerelease (development) versions will be excluded.
• check_exe : If True then check that the path is a Julia by querying it for the version. Note that this has already been done for most Julias found when the version was extracted.
• find_all : If False skip the locations that are slower to search. If no other exectuables are found, the slower locations may be searched anyway. The only slow location is the jill-installed location.
• no_dist : bool If True exclude julia installed from linux distribution packages. These are usually broken. Default True. This looks in /usr/bin/julia and /usr/sbin/julia.

Function find_or_install

find_or_install(version_spec=None, check_exe=False, find_all=False, strict=False,
                    answer_yes=False, post_question_hook=None,
                    env_var=None, no_dist=True)

Calling find_or_install() will use reasonable defaults.

This function takes all the same parameters as does find as well as the following.

Parameters

• answer_yes - if True, then ask no questions, assume answers are "yes".
• post_question_hook - a function to run if and after the consumer is asked whether to install Julia. This can be used to ask and record more questions rather than waiting till after the download. Default: None