all Python 3Exceptionsexception

TabError

built-in exceptions

Inconsistent mixing of tabs and spaces in indentation (a subclass of IndentationError).

Syntax

raise TabError

This is a parse-time error, not a runtime one: the interpreter chokes before a single line of the file executes, so wrapping the offending spot in try/except inside that same file cannot help. The fix lives in your editor, not in your code: turn on visible whitespace and keep one indentation style throughout the file — four spaces per level, as PEP 8 recommends.

Examples

try:
    raise TabError
except TabError as e:
    print(type(e).__name__)   # → TabError

See also

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