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8.10.2 Indenting Regions

Regions are even more difficult to indent. How do you safely indent a region Python code when block indentation determines program flow? The answer is — you don’t.

There are two types of region indentation commands:

• “intelligent” ones that ask your major mode’s indentation engine for advice – something that works well with languages like HTML or C;
• and plain, fixed-width indentation for the rest.

‘TAB’

Indents a line or region as per the major mode

‘C-M-\’

Indents using major mode’s region indent command

‘C-x TAB’

Rigidly indents