On Fri, 27 Jan 2023 21:04:58 +0000 Ben Bacarisse <ben.use...@bsb.me.uk> wrote: >mutt...@dastardlyhq.com writes: > >> Hi > >It looks like you posted this question via Usenet. comp.lang.python is >essentially dead as a Usenet group. It exists, and gets NNTP versions >of mail sent to the mailing list, but nothing posted to the group via >NNTP get send on the mailing list. I prefer Usenet and dislike mailing >lists but that just means I can't really contribute to this "group" > >The "python-list" an an excellent resource (if you like the email >interface) and you can subscribe here: > >https://mail.python.org/mailman/listinfo/python-list>, > >> This is probably a dumb newbie question but I've just started to learn >> python3 and eval() isn't behaving as I'd expect in that it works for >> some things and not others. eg: >> >>>>> eval("1+1") >> 2 >>>>> eval("print(123)") >> 123 >>>>> eval("for i in range(1,10): i") >> Traceback (most recent call last): >> File "<stdin>", line 1, in <module> >> File "<string>", line 1 >> for i in range(1,10): i >> ^ >> SyntaxError: invalid syntax >> >> Why did the 3rd one fail? Does it not handle complex expressions? > >It handles only expressions, and "for i in range(1,10): i" is not an >expression. You can use > >>>> exec("for i in range(1,10): i")
Ok, thanks. -- https://mail.python.org/mailman/listinfo/python-list
