I should really upgrade to 1.02!

% python
Python 1.0.1 (Jul 15 2016)
Copyright 1991-1994 Stichting Mathematisch Centrum, Amsterdam
>>> def f():
...     for i in range(5): i
...
>>> f()
0
1
2
3
4

On Sun, Jan 19, 2020 at 4:33 PM Tim Peters <tim.peters@gmail.com> wrote:
[Guido]
> Sounds like a hallucination or fabrication.

Nope!  Turns out my memory was right :-)

> The behavior of `for i in range(10): i` in the REPL exists
> to this day, and list.append() never returned a value.

Sure, but those weren't the claims.  The claim was that the result of
an expression statement was automatically printed unless it was None.
`for i in range(10): i` _used_ to print 10 values _even when run from
a program_ instead of from a shell.  I wasn't clear about that
distinction before.

From Misc/HISTORY:

"""
==> Release 1.0.2 (4 May 1994) <==
...
* The result of a statement-level expression is no longer printed,
except_ for expressions entered interactively.  Consequently, the -k
command line option is gone.
"""

Going back more:

"""
==> Release 0.9.9 (29 Jul 1993) <==
 ...
* New option -k raises an exception when an expression statement
yields a value other than None.
"""

Now I even recall the name of the early method-chaining user whose
complaints triggered those changes - but will let the past rest in
peace ;-)


> The only thing I'm only 90% sure of is whether the REPL always ignored None values.

I'm sure of that:  it never showed None values.  Because, if it had, I
would have remembered bitching about the endless annoyance ;-)


--
Keeping medicines from the bloodstreams of the sick; food
from the bellies of the hungry; books from the hands of the
uneducated; technology from the underdeveloped; and putting
advocates of freedom in prisons.  Intellectual property is
to the 21st century what the slave trade was to the 16th.