Mosaics of borrowed ideas

urwid-1.3.1.tar.gz

플러그인 시스템 만들기.

<참고>

http://www.ibm.com/developerworks/aix/library/au-cli_plugins/ : cli.zip

http://aroberge.blogspot.kr/2008/12/plugins-part-3-simple-class-based.html

http://docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/plugins.html

A Guide to Python's Magic Methods

Download PDF-version : magicmethods.pdf

이런 정리된 컨텐츠들을 만나면 그야말로 감사함의 극을 달린다.

뻔한 내용들로 페이지 수 채워서 돈이나 벌려는 번역서들보단 조금 불편해도 인터넷 곳곳에서 발견되는 이런 내용들이 훨씬 값어치가 있다.  그냥 무심코 사용하던 메소드들을 한번쯤 되짚어보고 가기에 나름 괜찮은지라 블로깅 한 페이지에도 넣어둔다.

#!/usr/bin/python
#
# Urwid Palette Test.  Showing off highcolor support
#    Copyright (C) 2004-2009  Ian Ward
#
#    This library is free software; you can redistribute it and/or
#    modify it under the terms of the GNU Lesser General Public
#    License as published by the Free Software Foundation; either
#    version 2.1 of the License, or (at your option) any later version.
#
#    This library is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#    Lesser General Public License for more details.
#
#    You should have received a copy of the GNU Lesser General Public
#    License along with this library; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# Urwid web site: http://excess.org/urwid/

"""
Palette test.  Shows the available foreground and background settings
in monochrome, 16 color, 88 color and 256 color modes.
"""

import re
import sys

import urwid
import urwid.raw_display

CHART_256 = """
brown__   dark_red_   dark_magenta_   dark_blue_   dark_cyan_   dark_green_
yellow_   light_red   light_magenta   light_blue   light_cyan   light_green

              #00f#06f#08f#0af#0df#0ff        black_______    dark_gray___
            #60f#00d#06d#08d#0ad#0dd#0fd        light_gray__    white_______
          #80f#60d#00a#06a#08a#0aa#0da#0fa
        #a0f#80d#60a#008#068#088#0a8#0d8#0f8
      #d0f#a0d#80d#608#006#066#086#0a6#0d6#0f6
    #f0f#d0d#a0a#808#606#000#060#080#0a0#0d0#0f0#0f6#0f8#0fa#0fd#0ff
      #f0d#d0a#a08#806#600#660#680#6a0#6d0#6f0#6f6#6f8#6fa#6fd#6ff#0df
        #f0a#d08#a06#800#860#880#8a0#8d0#8f0#8f6#8f8#8fa#8fd#8ff#6df#0af
          #f08#d06#a00#a60#a80#aa0#ad0#af0#af6#af8#afa#afd#aff#8df#6af#08f
            #f06#d00#d60#d80#da0#dd0#df0#df6#df8#dfa#dfd#dff#adf#8af#68f#06f
              #f00#f60#f80#fa0#fd0#ff0#ff6#ff8#ffa#ffd#fff#ddf#aaf#88f#66f#00f
                                    #fd0#fd6#fd8#fda#fdd#fdf#daf#a8f#86f#60f
      #66d#68d#6ad#6dd                #fa0#fa6#fa8#faa#fad#faf#d8f#a6f#80f
    #86d#66a#68a#6aa#6da                #f80#f86#f88#f8a#f8d#f8f#d6f#a0f
  #a6d#86a#668#688#6a8#6d8                #f60#f66#f68#f6a#f6d#f6f#d0f
#d6d#a6a#868#666#686#6a6#6d6#6d8#6da#6dd    #f00#f06#f08#f0a#f0d#f0f
  #d6a#a68#866#886#8a6#8d6#8d8#8da#8dd#6ad
    #d68#a66#a86#aa6#ad6#ad8#ada#add#8ad#68d
      #d66#d86#da6#dd6#dd8#dda#ddd#aad#88d#66d        g78_g82_g85_g89_g93_g100
                    #da6#da8#daa#dad#a8d#86d        g52_g58_g62_g66_g70_g74_
      #88a#8aa        #d86#d88#d8a#d8d#a6d        g27_g31_g35_g38_g42_g46_g50_
    #a8a#888#8a8#8aa    #d66#d68#d6a#d6d        g0__g3__g7__g11_g15_g19_g23_
      #a88#aa8#aaa#88a
            #a88#a8a
"""

CHART_88 = """
brown__   dark_red_   dark_magenta_   dark_blue_   dark_cyan_   dark_green_
yellow_   light_red   light_magenta   light_blue   light_cyan   light_green

      #00f#08f#0cf#0ff            black_______    dark_gray___
    #80f#00c#08c#0cc#0fc            light_gray__    white_______
  #c0f#80c#008#088#0c8#0f8
#f0f#c0c#808#000#080#0c0#0f0#0f8#0fc#0ff            #88c#8cc
  #f0c#c08#800#880#8c0#8f0#8f8#8fc#8ff#0cf        #c8c#888#8c8#8cc
    #f08#c00#c80#cc0#cf0#cf8#cfc#cff#8cf#08f        #c88#cc8#ccc#88c
      #f00#f80#fc0#ff0#ff8#ffc#fff#ccf#88f#00f            #c88#c8c
                    #fc0#fc8#fcc#fcf#c8f#80f
                      #f80#f88#f8c#f8f#c0f        g62_g74_g82_g89_g100
                        #f00#f08#f0c#f0f        g0__g19_g35_g46_g52
"""

CHART_16 = """
brown__   dark_red_   dark_magenta_   dark_blue_   dark_cyan_   dark_green_
yellow_   light_red   light_magenta   light_blue   light_cyan   light_green

black_______    dark_gray___    light_gray__    white_______
"""

ATTR_RE = re.compile("(?P<whitespace>[ \n]*)(?P<entry>[^ \n]+)")
SHORT_ATTR = 4 # length of short high-colour descriptions which may
# be packed one after the next

def parse_chart(chart, convert):
    """
    Convert string chart into text markup with the correct attributes.

    chart -- palette chart as a string
    convert -- function that converts a single palette entry to an
        (attr, text) tuple, or None if no match is found
    """
    out = []
    for match in re.finditer(ATTR_RE, chart):
        if match.group('whitespace'):
            out.append(match.group('whitespace'))
        entry = match.group('entry')
        entry = entry.replace("_", " ")
        while entry:
            # try the first four characters
            attrtext = convert(entry[:SHORT_ATTR])
            if attrtext:
                elen = SHORT_ATTR
                entry = entry[SHORT_ATTR:].strip()
            else: # try the whole thing
                attrtext = convert(entry.strip())
                assert attrtext, "Invalid palette entry: %r" % entry
                elen = len(entry)
                entry = ""
            attr, text = attrtext
            out.append((attr, text.ljust(elen)))
    return out

def foreground_chart(chart, background, colors):
    """
    Create text markup for a foreground colour chart

    chart -- palette chart as string
    background -- colour to use for background of chart
    colors -- number of colors (88 or 256)
    """
    def convert_foreground(entry):
        try:
            attr = urwid.AttrSpec(entry, background, colors)
        except urwid.AttrSpecError:
            return None
        return attr, entry
    return parse_chart(chart, convert_foreground)

def background_chart(chart, foreground, colors):
    """
    Create text markup for a background colour chart

    chart -- palette chart as string
    foreground -- colour to use for foreground of chart
    colors -- number of colors (88 or 256)

    This will remap 8 <= colour < 16 to high-colour versions
    in the hopes of greater compatibility
    """
    def convert_background(entry):
        try:
            attr = urwid.AttrSpec(foreground, entry, colors)
        except urwid.AttrSpecError:
            return None
        # fix 8 <= colour < 16
        if colors > 16 and attr.background_basic and \
            attr.background_number >= 8:
            # use high-colour with same number
            entry = 'h%d'%attr.background_number
            attr = urwid.AttrSpec(foreground, entry, colors)
        return attr, entry
    return parse_chart(chart, convert_background)


def main():
    palette = [
        ('header', 'black,underline', 'light gray', 'standout,underline',
            'black,underline', '#88a'),
        ('panel', 'light gray', 'dark blue', '',
            '#ffd', '#00a'),
        ('focus', 'light gray', 'dark cyan', 'standout',
            '#ff8', '#806'),
        ]

    screen = urwid.raw_display.Screen()
    screen.register_palette(palette)

    lb = urwid.SimpleListWalker([])
    chart_offset = None  # offset of chart in lb list

    mode_radio_buttons = []
    chart_radio_buttons = []

    def fcs(widget):
        # wrap widgets that can take focus
        return urwid.AttrMap(widget, None, 'focus')

    def set_mode(colors, is_foreground_chart):
        # set terminal mode and redraw chart
        screen.set_terminal_properties(colors)
        screen.reset_default_terminal_palette()

        chart_fn = (background_chart, foreground_chart)[is_foreground_chart]
        if colors == 1:
            lb[chart_offset] = urwid.Divider()
        else:
            chart = {16: CHART_16, 88: CHART_88, 256: CHART_256}[colors]
            txt = chart_fn(chart, 'default', colors)
            lb[chart_offset] = urwid.Text(txt, wrap='clip')

    def on_mode_change(rb, state, colors):
        # if this radio button is checked
        if state:
            is_foreground_chart = chart_radio_buttons[0].state
            set_mode(colors, is_foreground_chart)

    def mode_rb(text, colors, state=False):
        # mode radio buttons
        rb = urwid.RadioButton(mode_radio_buttons, text, state)
        urwid.connect_signal(rb, 'change', on_mode_change, colors)
        return fcs(rb)

    def on_chart_change(rb, state):
        # handle foreground check box state change
        set_mode(screen.colors, state)

    def click_exit(button):
        raise urwid.ExitMainLoop()

    lb.extend([
        urwid.AttrMap(urwid.Text("Urwid Palette Test"), 'header'),
        urwid.AttrMap(urwid.Columns([
            urwid.Pile([
                mode_rb("Monochrome", 1),
                mode_rb("16-Color", 16, True),
                mode_rb("88-Color", 88),
                mode_rb("256-Color", 256),]),
            urwid.Pile([
                fcs(urwid.RadioButton(chart_radio_buttons,
                    "Foreground Colors", True, on_chart_change)),
                fcs(urwid.RadioButton(chart_radio_buttons,
                    "Background Colors")),
                urwid.Divider(),
                fcs(urwid.Button("Exit", click_exit)),
                ]),
            ]),'panel')
        ])

    chart_offset = len(lb)
    lb.extend([
        urwid.Divider() # placeholder for the chart
        ])

    set_mode(16, True) # displays the chart

    def unhandled_input(key):
        if key in ('Q','q','esc'):
            raise urwid.ExitMainLoop()

    urwid.MainLoop(urwid.ListBox(lb), screen=screen,
        unhandled_input=unhandled_input).run()

if __name__ == "__main__":
    main()

(http://stackoverflow.com/questions/5276967/python-in-xcode-4)

I figured it out! The steps look lengthy but it's not that bad at all.

1. Open Xcode 4.
2. In the menu bar, click "File" → "New" → "New Project…".
3. Select "Other" under "Mac OS X".
4. Select "External Build System" and click "Next".
5. Enter the product name.
6. For the "Build Tool" field, type in /usr/local/bin/python3 for Python 3 or /usr/bin/python for Python 2 and then click "Next". Note that this assumes you have Python installed in the typical location(s). if you are unsure as to where your Python executables are enter these commands into Terminal: which python3 and which python.
7. Choose where to save it and click "Create".
8. In the menu bar, click "File" → "New" → "New File…".
9. Select "Other" under "Mac OS X".
10. Select "Empty" and click "Next".
11. Navigate to the project folder (it will not work, otherwise), enter the name of the Python file (include the ".py" extension), and click "Save".
12. In the menu bar, click "Product" → "Edit Scheme…".
13. Click "Run" in the left column.
14. In the "Info" tab, click the "Executable" field and then click "Other…".
15. Navigate to the executable from Step 6. You may need to use ⇧⌘G to type in the directory if it is hidden.
16. Select the executable and click "Choose".
17. For the "Debugger" field, select "None".
18. In the "Arguments" tab, click the "Base Expansions On" field and select the target that is named the same as your project.
19. Click the "+" icon under "Arguments Passed On Launch". You may have to expand that section by clicking on the triangle pointing to the right.
20. Type in $(SOURCE_ROOT)/ and then the name of the Python file you want to test. Remember, the Python program must be in the project folder. Otherwise, you will have to type out the full path (or relative path if it's in a subfolder of the project folder) here. If there are spaces anywhere in the full path, you must include quotation marks at the beginning and end of this.
21. Click "OK".
22. Start coding.

Note that if you open the "Utilities" panel, with the "Show the File inspector" tab active, the file type is automatically set to "Default - Python script". Feel free to look through all the file type options it has to gain an idea as to what all it is capable of doing. The method above can be applied to any interpreted language. As of right now, I have yet to figure out exactly how to get it to work with Java; then again, I haven't done too much research. Surely there is some documentation floating around on the web about all of this.

Say, "Hello, code completion, auto-indentation, and syntax highlighting." Note that it's not as advanced as it is with C, C++, or Objective-C but it is better than using IDLE in my opinion.