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") or, to confirm that something is happening: >>> exec("for i in range(1,10): print(i)") 1 2 3 4 5 6 7 8 9 See: https://docs.python.org/3/library/functions.html?highlight=eval#eval and the immediately following entry. -- Ben. -- https://mail.python.org/mailman/listinfo/python-list
