avoid string concatenation

Docs > Code Analysis > Static Analysis Rules > avoid string concatenation

Cette page n'est pas encore disponible en français, sa traduction est en cours.
Si vous avez des questions ou des retours sur notre projet de traduction actuel, n'hésitez pas à nous contacter.

Metadata

ID: python-best-practices/avoid-string-concat

Language: Python

Severity: Warning

Category: Performance

Description

Concatenation of multiple strings is not efficient and make the code hard to read and understand.

Instead of concatenating multiple strings, use an f-string or a format string.

Learn More

Non-Compliant Code Examples

"my" + awesome + "string"
plop = "super" + "awesome" + "text"

Compliant Code Examples

"my {0} string".format(awesome)
f"my {awesome} string"
plop = "superawesometext"

function(
    tags = (
    user_tags
    + s.get("tags", [])
    + [
        f"schedule_id:{s['_id']}",
        f"schedule_name:{s['schedule_name']}",
        f"git_ref:{schedule_git_ref}",
    ]
)
)