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Install_Julia.md

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Automatically installing Julia

qiskit_alt will query to download and install Julia if it can't find the exectuable. The search and installation for Julia is done by the Python package find_julia, described here.

Alternatively, you can install Julia as described below.

Installing Julia manually

You can skip everything below if you allow qiskit_alt to install Julia for you.

  • Install Julia

    • The Julia installer jill.py works for most common platforms. pip install jill, then jill install. This table shows where jill installs and symlinks julia on various platforms.
    • juliaup for MSWin uses the Windows store. It also works (with improving support) for linux and macos.
    • Download a prebuilt Julia distribution

  • To allow qiskit_alt to find the julia executable you can do one of

    • Install Julia with jill.py, or juliaup and qiskit_alt will find it, even if it is not in your PATH.
    • Ensure that the julia executable is in your PATH environment variable. For example, under linux, jill makes a symlink to /home/username/.local/bin/julia. More information is here.
    • Set the environment variable QISKIT_ALT_JULIA_PATH to the path of your julia executable.
    • Pass the option julia_path="/path/to/julia/executable" to the ensure_init() when initializing. That is: qiskit_alt.project.ensure_init(julia_path="/path/to/julia/executable", otheopts...)