On 8/29/2012 11:04 AM, Franck Ditter wrote:
I use Python 3.2.3 + Idle.
Is it possible to program test(e) which takes
an expression e and whose execution produces
at the toplevel an echo of e and the effects
and result of its evaluation ?
No, not as Python is delivered.
# file foo.py
def foo(x) :
print('x =',x)
return x+1
test(foo(5))
# RUN !
# produces at the toplevel :
? foo(5)
x = 5
--> 6
I know I could put the expression e within a string, but
is it possible to avoid the string, like a Lisp macro ?
It might be possible to write an IDLE extension that would 'process'
interactive input looking for (untested) re pattern something like
'test\((.*)\)'. Given a match, it prints the captured .* part and passes
it on to the Python interpreter, and prefixes output with '-->'.
(I have not yet looked at how to write extensions.)
--
Terry Jan Reedy
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