Fix some PEP8 in curses HOWTO.

Doc/howto/curses.rst

@@ -144,8 +144,8 @@ window, but you might wish to divide the screen into smaller windows, in order
 to redraw or clear them separately. The :func:`newwin` function creates a new
 window of a given size, returning the new window object. ::
 
-   begin_x = 20 ; begin_y = 7
-   height = 5 ; width = 40
+   begin_x = 20; begin_y = 7
+   height = 5; width = 40
    win = curses.newwin(height, width, begin_y, begin_x)
 
 A word about the coordinate system used in curses: coordinates are always passed
@@ -184,11 +184,13 @@ displayed.   ::
    # explained in the next section
    for y in range(0, 100):
        for x in range(0, 100):
-           try: pad.addch(y,x, ord('a') + (x*x+y*y) % 26 )
-           except curses.error: pass
+           try:
+               pad.addch(y,x, ord('a') + (x*x+y*y) % 26)
+           except curses.error:
+               pass
 
    #  Displays a section of the pad in the middle of the screen
-   pad.refresh( 0,0, 5,5, 20,75)
+   pad.refresh(0,0, 5,5, 20,75)
 
 The :func:`refresh` call displays a section of the pad in the rectangle
 extending from coordinate (5,5) to coordinate (20,75) on the screen; the upper
@@ -321,7 +323,7 @@ again, such combinations are not guaranteed to work on all terminals.
 
 An example, which displays a line of text using color pair 1::
 
-   stdscr.addstr( "Pretty text", curses.color_pair(1) )
+   stdscr.addstr("Pretty text", curses.color_pair(1))
    stdscr.refresh()
 
 As I said before, a color pair consists of a foreground and background color.
@@ -343,7 +345,7 @@ When you change a color pair, any text already displayed using that color pair
 will change to the new colors.  You can also display new text in this color
 with::
 
-   stdscr.addstr(0,0, "RED ALERT!", curses.color_pair(1) )
+   stdscr.addstr(0,0, "RED ALERT!", curses.color_pair(1))
 
 Very fancy terminals can change the definitions of the actual colors to a given
 RGB value.  This lets you change color 1, which is usually red, to purple or
@@ -381,9 +383,12 @@ your program will look something like this::
 
    while 1:
        c = stdscr.getch()
-       if c == ord('p'): PrintDocument()
-       elif c == ord('q'): break  # Exit the while()
-       elif c == curses.KEY_HOME: x = y = 0
+       if c == ord('p'):
+           PrintDocument()
+       elif c == ord('q'):
+           break  # Exit the while()
+       elif c == curses.KEY_HOME:
+           x = y = 0
 
 The :mod:`curses.ascii` module supplies ASCII class membership functions that
 take either integer or 1-character-string arguments; these may be useful in
@@ -433,4 +438,3 @@ If you write an interesting little program, feel free to contribute it as
 another demo.  We can always use more of them!
 
 The ncurses FAQ: http://invisible-island.net/ncurses/ncurses.faq.html
-