Skip to content

explicit-string-concatenation (ISC003)#

Derived from the flake8-implicit-str-concat linter.

What it does#

Checks for string literals that are explicitly concatenated (using the + operator).

Why is this bad?#

For string literals that wrap across multiple lines, implicit string concatenation within parentheses is preferred over explicit concatenation using the + operator, as the former is more readable.

Example#

z = (
    "The quick brown fox jumps over the lazy "
    + "dog"
)

Use instead:

z = (
    "The quick brown fox jumps over the lazy "
    "dog"
)