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-rw-r--r--Doc/documenting/style.rst7
1 files changed, 4 insertions, 3 deletions
diff --git a/Doc/documenting/style.rst b/Doc/documenting/style.rst
index 2548cb0a6c..71a52f2b47 100644
--- a/Doc/documenting/style.rst
+++ b/Doc/documenting/style.rst
@@ -14,9 +14,10 @@ document.
Use of whitespace
-----------------
-All reST files use an indentation of 3 spaces. The maximum line length is 80
-characters for normal text, but tables, deeply indented code samples and long
-links may extend beyond that.
+All reST files use an indentation of 3 spaces; no tabs are allowed. The
+maximum line length is 80 characters for normal text, but tables, deeply
+indented code samples and long links may extend beyond that. Code example
+bodies should use normal Python 4-space indentation.
Make generous use of blank lines where applicable; they help grouping things
together.