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gh-87209: Clarify ordering rule for default arguments in tutorial #138529

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gh-87209: Clarify ordering rule for default arguments in tutorial #138529

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7 changes: 4 additions & 3 deletions Doc/tutorial/controlflow.rst
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Expand Up @@ -587,9 +587,10 @@ There are three forms, which can be combined.
Default Argument Values
-----------------------

The most useful form is to specify a default value for one or more arguments.
This creates a function that can be called with fewer arguments than it is
defined to allow. For example::
The most useful form is to specify a default value for one or more parameters.
All positional only parameters (that is, without default values) must come
first, followed by those with defaults. This allows a function to be called
with fewer arguments than it is defined to allow. For example::

def ask_ok(prompt, retries=4, reminder='Please try again!'):
while True:
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