Hello Alexander, and welcome! My answers are below, between your questions (starting with > quote marks).
On Thu, Feb 04, 2016 at 02:49:39PM +0200, Alexa kun wrote: > Hi Dear! > I newbie and read 2.1.2. Interactive Mode > https://docs.python.org/3/tutorial/interpreter.html > > but when I type > > >>> the_world_is_flat = True > >>> if the_world_is_flat: > ... print("Be careful not to fall off!") Look carefully at the last line. Do you notice the indented space between the three dots ... and the print? You need to either press space at least once, or the TAB key, to indent the line. > I got answer > > IndentationError: expected an indented block Here Python tells you exactly what the problem is. Python expected an indented block of text (at least one line, indented by at least one space), but you didn't indent the line. Python expects: if the_world_is_flat: print(Be careful not to fall off!) but you typed: if the_world_is_flat: print(Be careful not to fall off!) without the indentation. You should press the TAB key to indent, or the SPACE key at least once. Also, one last comment: > [root@localhost /]# python3 I see from this that you are running Python as the root superuser. This is VERY dangerous for a beginner (and even for an expert). As root, you can over-write essential system files. Which means that if you accidentally give the wrong Python commands, you could break your system and leave it in a broken state where it needs to be re-installed. It is MUCH safer to experiment as the regular user. If the command prompt shows # then you are running as root. If it shows $ then you are running as a regular user. -- Steve _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
