So, what is one to do? Well, after reading through lots of code, very few websites, I decided to hack away and here is what I ended up with: my very own little "hello world" plugin for Spyder-IDE 2.30.dev6.
This code comes with no warranty whatsoever, and I unfortunately do not have time to provide any feedback or support, so you really are on your own.
1. Create a "p_helloworld.py" file in your WinPython folder (WinPython 3.3/python-3.3.2/Lib/site-packages/spyderplugins/p_helloworld.py) and copy the following code into it:
"""
HelloWorld Plugin
- Basic implementation of Hello World plugin
- Shows example of how to add Hello World to the menu, e.g.
Run -> Hello World
- Also adds a HelloWorld item to theConfiguration Page, e.g.
Tools -> Preferences
"""
from spyderlib.qt.QtGui import QVBoxLayout, QGroupBox, QLabel
from spyderlib.qt.QtCore import SIGNAL
# Local imports
from spyderlib.baseconfig import get_translation
_ = get_translation("p_helloworld", dirname="spyderplugins")
from spyderlib.utils.qthelpers import get_icon, create_action
from spyderlib.plugins import SpyderPluginMixin, PluginConfigPage
from spyderplugins.widgets.helloworldgui import HelloWorldWidget
class HelloWorldConfigPage(PluginConfigPage):
"""
The Configuration Page that can be found under Tools -> Preferences. This
only displays a label.
"""
def setup_page(self):
""" Setup of the configuration page. All widgets need to be added here"""
setup_group = QGroupBox(_("HelloWorld Plugin Configuration"))
setup_label = QLabel(_("HelloWorld plugin configuration needs to be "\
"implemented here.\n"))
setup_label.setWordWrap(True)
# Warning: do not try to regroup the following QLabel contents with
# widgets above -- this string was isolated here in a single QLabel
# on purpose: to fix Issue 863
setup_layout = QVBoxLayout()
setup_layout.addWidget(setup_label)
setup_group.setLayout(setup_layout)
vlayout = QVBoxLayout()
vlayout.addWidget(setup_group)
vlayout.addStretch(1)
self.setLayout(vlayout)
class HelloWorld(HelloWorldWidget, SpyderPluginMixin):
"""HelloWorld class that implements all the SpyderPluginMixin methods"""
CONF_SECTION = 'helloworld'
CONFIGWIDGET_CLASS = HelloWorldConfigPage
def __init__(self, parent=None):
HelloWorldWidget.__init__(self, parent=parent,
max_entries=self.get_option('max_entries', 50))
SpyderPluginMixin.__init__(self, parent)
# Initialize plugin
self.initialize_plugin()
#------ SpyderPluginWidget API ---------------------------------------------
def get_plugin_title(self):
"""Return widget title"""
return _("HelloWorld")
def get_plugin_icon(self):
"""Return widget icon"""
return get_icon('helloworld.png')
def get_focus_widget(self):
"""
Return the widget to give focus to when
this plugin's dockwidget is raised on top-level
"""
#return self.datatree\
pass
def get_plugin_actions(self):
"""Return a list of actions related to plugin"""
return []
def on_first_registration(self):
"""Action to be performed on first plugin registration"""
self.main.tabify_plugins(self.main.inspector, self)
self.dockwidget.hide()
#pass
def register_plugin(self):
"""Register plugin in Spyder's main window"""
self.connect(self, SIGNAL("edit_goto(QString,int,QString)"),
self.main.editor.load)
self.connect(self, SIGNAL('redirect_stdio(bool)'),
self.main.redirect_internalshell_stdio)
self.main.add_dockwidget(self)
helloworld_act = create_action(self, _("Hello World"),
icon=get_icon('helloworld.png'),
triggered=self.show)
helloworld_act.setEnabled(True)
self.register_shortcut(helloworld_act, context="HelloWorld",
name="Run helloworld", default="F10")
self.main.run_menu_actions += [helloworld_act]
self.main.editor.pythonfile_dependent_actions += [helloworld_act]
def refresh_plugin(self):
"""Refresh helloworld widget"""
#self.remove_obsolete_items() # FIXME: not implemented yet
pass
def closing_plugin(self, cancelable=False):
"""Perform actions before parent main window is closed"""
return True
def apply_plugin_settings(self, options):
"""Apply configuration file's plugin settings"""
# The history depth option will be applied at
# next Spyder startup, which is soon enough
pass
def show(self):
"""Show the helloworld dockwidget"""
if self.dockwidget and not self.ismaximized:
self.dockwidget.setVisible(True)
self.dockwidget.setFocus()
self.dockwidget.raise_()
#------ Public API ---------------------------------------------------------
#===============================================================================
# The following statements are required to register this 3rd party plugin:
#===============================================================================
PLUGIN_CLASS = HelloWorld
1. Create a "helloworldgui.py" file in your WinPython folder (WinPython 3.3/python-3.3.2/Lib/site-packages/spyderplugins/widgets/helloworldgui.py) and copy the following code into it:
"""
HelloWorld widget
- Basic implementation of a GUI for the Hello World plugin
"""
from __future__ import with_statement
from spyderlib.qt.QtGui import (QHBoxLayout, QWidget, QVBoxLayout,QLabel)
from spyderlib.qt.QtCore import QTextCodec
locale_codec = QTextCodec.codecForLocale()
import sys
#def is_helloworld_installed():
# from spyderlib.utils.programs import is_module_installed
# return is_module_installed('cProfile') and is_module_installed('pstats')
class HelloWorldWidget(QWidget):
"""
HelloWorld widget
"""
def __init__(self, parent, max_entries=100):
""" Creates a very basic window with some text """
HELLO_WORLD_MESSAGE = \
"The Plugins for Spyder consists out of three main classes: \n\n" \
"1. HelloWorld\n\n" \
"\tThe HelloWorld class inherits all its methods from\n" \
"\tSpyderPluginMixin and the HelloWorldWidget and performs all\n" \
"\tthe processing required by the GUI. \n\n" \
"2. HelloWorldConfigPage\n\n" \
"\tThe HelloWorldConfig class inherits all its methods from\n" \
"\tPluginConfigPage to create a configuration page that can be\n" \
"\tfound under Tools -> Preferences\n\n" \
"3. HelloWorldWidget\n\n" \
"\tThe HelloWorldWidget class inherits all its methods from\n" \
"\tQWidget to create the actual plugin GUI interface that \n" \
"\tdisplays this message on screen\n\n"
QWidget.__init__(self, parent)
self.setWindowTitle("HelloWorld")
self.output = None
self.error_output = None
self._last_wdir = None
self._last_args = None
self._last_pythonpath = None
self.textlabel = QLabel(HELLO_WORLD_MESSAGE)
hlayout1 = QHBoxLayout()
hlayout1.addWidget(self.textlabel)
hlayout1.addStretch()
layout = QVBoxLayout()
layout.addLayout(hlayout1)
self.setLayout(layout)
def test():
"""Run HelloWorld widget test"""
from spyderlib.utils.qthelpers import qapplication
app = qapplication()
widget = HelloWorldWidget(None)
widget.resize(400, 300)
widget.show()
sys.exit(app.exec_())
if __name__ == '__main__':
test()
3. Create a "helloworld.png" file in your WinPython folder (WinPython 3.3/python-3.3.2/Lib/site-packages/spyderplugins/images/helloworld.png) by copying the following image file.
That's it! Close and re-open Spyder-IDE and you should now be able to see a HelloWorld plugin under both the [Run] and the [External Tools] menu.
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