facebookresearch/fairseq

`fairseq_cli/*.py` should report a more specific error for unrecognized CLI arguments

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#3,403 opened on Mar 26, 2021

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enhancementhelp wantedneeds triagestale

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Description

🚀 Feature Request

Right now, the error prints the entire command almost as is. Instead, try to parse and let argparse print a more specific error for wrong or missing flags.

Motivation

The current behavior is frustrating for debugging :(

Pitch

See ## Feature Request

Alternatives

Additional context

Contributor guide

Research direction
Examine the CLI entry points in fairseq cli/*.py, locate where argparse is configured, and enhance error handling to provide specific messages for unrecognized or missing arguments.
Tech stack
python
Domain
cli
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75