SCR116: raise-string

raise with a string

Code	SCR116
Name	raise-string
Category	Scripts (SCR)
Default severity	error
Enabled by default	yes
Fix available	no
ign-lint equivalent	none

What it does

Reports raise "message", including strings built with % or + from a string literal.

Why is this bad?

String exceptions were removed in Python 2.6. Jython raises TypeError: exceptions must be old-style classes or derived from BaseException, not str instead of the intended error, and the message is lost.

Example

if not rows:
    raise "no data for line %s" % line

Use instead:

if not rows:
    raise ValueError("no data for line %s" % line)

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Generated from the rule metadata by iglint generate-docs; iglint rule SCR116 prints the same page in the terminal. Source: docs/rules/SCR116.md.