SCR117: redefined-builtin

Name shadows a builtin or Ignition's system

Code	SCR117
Name	redefined-builtin
Category	Scripts (SCR)
Default severity	info
Enabled by default	no
Fix available	no
ign-lint equivalent	none

What it does

Reports assignments, parameters, loop variables, functions, classes and imports whose name is a Jython builtin (id, type, input, file, max, ...) or Ignition's system, once per name and scope. Class attributes and methods are not reported: methods do not see the class body, so they do not hide the builtin anywhere else. Neither is the exception class in except ValueError, TypeError:, which SCR115 reports.

Why is this bad?

Inside that scope the builtin is no longer reachable: a later type(x) or system.tag.readBlocking(...) calls the local value instead. The failure appears far from the assignment.

Example

def onMessageReceived(self, payload):
    id = payload["id"]
    type = payload["type"]
    self.custom.label = "%s (%s)" % (id, type)

Use instead:

def onMessageReceived(self, payload):
    itemId = payload["id"]
    itemType = payload["type"]
    self.custom.label = "%s (%s)" % (itemId, itemType)

Options

• allowed (default ["__doc__", "__name__", "copyright", "credits", "exit", "help", "license", "quit"]): names that may be rebound.

pylint

Corresponds to W0622 redefined-builtin.

Option reference

Set in [rules.SCR117] of iglint.toml (or [tool.iglint.rules.SCR117] in pyproject.toml).

Option	Type	Default	Description
allowed	array of strings	["__doc__", "__name__", "copyright", "credits", "exit", "help", "license", "quit"]	Builtin names that may be rebound.

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Generated from the rule metadata by iglint generate-docs; iglint rule SCR117 prints the same page in the terminal. Source: docs/rules/SCR117.md.