External store - DataJointError: Unsupported attribute type -> key name can't take dash '-'

[drewyangdev]

Bug Report

Description

dj.config["stores"] = {
    "data-root": dict(
        protocol="file",
        location="./data",
        stage="./data",
    )
}

@schema
class File(dj.Manual):
    definition = """
    file_path: varchar(256)
    ---
    file: filepath@data-root
    """
file = File()

Error: `datajoint.errors.DataJointError: Unsupported attribute type filepath@data-root`

Reproducibility

Include:

• OS MACOS
• Python 3.9
• MySQL 8.0
• MySQL Deployment Strategy RDS
• DataJoint 0.13.3
• Minimum number of steps to reliably reproduce the issue: run above script with your own creds
• Complete error stack as a result of evaluating the above steps

Expected Behavior

This doesn't work, but without '-' or replace '-' with '_' it works fine

Screenshots

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N/A

Additional Research and Context

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For example:

• Related GitHub issues and PR's either within this repository or in other relevant repositories.
• Specific links to specific lines or a focus within source code.
• Relevant summary of Maintainers development meetings, milestones, projects, etc.