ramalho
commented
5 years ago Hello, @wllbll . This is what I wrote in the Preface (section Who This Book is For): """ However, Fluent Python is about making the most of Python 3.4, and I do not spell out the fixes needed to make the code work in earlier versions. Most examples should run in Python 2.7 with little or no changes, but in some cases, backporting would require significant rewriting. """
It was never my stated goal to cover both Python 2.7 and 3.4. My focus was always Python 3.4.
the code in listcomp_speed.py will rasise an syntax error: def clock(label, cmd): ... res = time.repeat(cmd, setup=SETUP, number=TIMES) ... print(label, ('{:3.f}.formart(x) for x in res')) File "", line 3
print(label, ('{:3.f}.formart(x) for x in res'))
^
SyntaxError: invalid syntax
but it doesn't make sense to me, as the asterisk in print is unpacking, and unpacking is support in print, as print(*("1","2")) will work well.
and the same code run well in python3.5.
the book did not specify the environment of python.