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Diffstat (limited to 'docs/pycon2010/pycon2010.rst')
| -rw-r--r-- | docs/pycon2010/pycon2010.rst | 64 |
1 files changed, 32 insertions, 32 deletions
diff --git a/docs/pycon2010/pycon2010.rst b/docs/pycon2010/pycon2010.rst index 0b3b7a46..6c3af676 100644 --- a/docs/pycon2010/pycon2010.rst +++ b/docs/pycon2010/pycon2010.rst @@ -11,7 +11,7 @@ Web 2.0 .. image:: web-2-0-logos.gif :height: 350px - + But first... ============ @@ -20,10 +20,10 @@ But first... .. image:: akkad.png :height: 250px - + Sargon the Great Founder of Akkadian Empire - + .. twenty-third century BC In between @@ -31,16 +31,16 @@ In between .. image:: apple.jpg :height: 250px - + Command-Line Interface - Unlike the Akkadian Empire, + Unlike the Akkadian Empire, the CLI will never die. Defining CLI ============ Also known as - + - "Line-oriented command interpreter" - "Command-line interface" - "Shell" @@ -85,24 +85,24 @@ Examples .. image:: urwid.png :height: 250px - + Decide your priorities ====================== .. image:: strategy.png :height: 350px - + A ``cmd`` app: pirate.py ======================== :: from cmd import Cmd - + class Pirate(Cmd): pass - + pirate = Pirate() pirate.cmdloop() @@ -114,9 +114,9 @@ Fundamental prrrinciple ======================= .. class:: huge - - ``(Cmd) foo a b c`` - + + ``(Cmd) foo a b c`` + becomes ``self.do_foo('a b c')`` @@ -139,7 +139,7 @@ Fundamental prrrinciple print('Now we gots {0} doubloons' .format(self.gold)) -.. do_methods; more help +.. do_methods; more help Hooks ===== @@ -163,16 +163,16 @@ Hooks: pirate3.py 'Seize booty from a passing ship.' self.gold += 1 def do_drink(self, arg): - 'Drown your sorrrows in rrrum.' + 'Drown your sorrrows in rrrum.' self.gold -= 1 def precmd(self, line): self.initial_gold = self.gold return line - def postcmd(self, stop, line): + def postcmd(self, stop, line): if self.gold != self.initial_gold: print('Now we gots {0} doubloons' .format(self.gold)) - + Arguments: pirate4.py ===================== @@ -180,22 +180,22 @@ Arguments: pirate4.py def do_drink(self, arg): '''Drown your sorrrows in rrrum. - - drink [n] - drink [n] barrel[s] o' rum.''' + + drink [n] - drink [n] barrel[s] o' rum.''' try: self.gold -= int(arg) except: if arg: print('''What's "{0}"? I'll take rrrum.''' .format(arg)) - self.gold -= 1 - + self.gold -= 1 + quitting: pirate5.py ==================== :: - def postcmd(self, stop, line): + def postcmd(self, stop, line): if self.gold != self.initial_gold: print('Now we gots {0} doubloons' .format(self.gold)) @@ -205,7 +205,7 @@ quitting: pirate5.py return stop def do_quit(self, arg): print("Quiterrr!") - return True + return True prompts, defaults: pirate6.py ============================= @@ -227,7 +227,7 @@ Other CLI packages * CMdO * pycopia * cmdlin - * cmd2 + * cmd2 Demo ==== @@ -258,7 +258,7 @@ Script files Commands at invocation -Output redirection +Output redirection Python @@ -273,9 +273,9 @@ But wait, there's more * Timing * Echo * Debug - + Minor changes: pirate7.py -========================= +========================= :: @@ -287,18 +287,18 @@ Minor changes: pirate7.py Cmd.shortcuts.update({'~': 'sing'}) def do_sing(self, arg): print(self.colorize(arg, self.songcolor)) - + Now how much would you pay? =========================== options / flags -Quiet (suppress feedback) +Quiet (suppress feedback) BASH-style ``select`` Parsing: terminators, suffixes - + Options: pirate8.py =================== @@ -307,13 +307,13 @@ Options: pirate8.py @options([make_option('--ho', type='int', default=2, help="How often to chant 'ho'"), make_option('-c', '--commas', - action="store_true", + action="store_true", help="Intersperse commas")]) def do_yo(self, arg, opts): chant = ['yo'] + ['ho'] * opts.ho separator = ', ' if opts.commas else ' ' chant = separator.join(chant) - print('{0} and a bottle of {1}' + print('{0} and a bottle of {1}' .format(chant, arg)) Serious example: sqlpython |