"""

A basic example that show you how to create a basic python code editor widget,

from scratch.

Editor features:

- syntax highlighting

- code completion (using jedi)

- code folding

- auto indentation

- auto complete

- comments mode (ctrl+/)

- calltips mode

- linters (pyflakes and pep8) modes + display panel

- line number panel

- builtin search and replace panel

"""

import logging

logging.basicConfig()

# optionally, set the qt api to use (in ['pyqt4', 'pyqt5', 'pyside'])

# import os; os.environ['QT_API'] = 'pyside'

import sys

from pyqode.qt import QtWidgets

from pyqode.python.backend import server

from pyqode.core import api, modes, panels

from pyqode.python import modes as pymodes, panels as pypanels, widgets

class MyPythonCodeEdit(widgets.PyCodeEditBase):

def __init__(self):

super(MyPythonCodeEdit, self).__init__()

# starts the default pyqode.python server (which enable the jedi code

# completion worker).

self.backend.start(server.__file__)

# some other modes/panels require the analyser mode, the best is to

# install it first

self.modes.append(pymodes.DocumentAnalyserMode())

#--- core panels

self.panels.append(panels.FoldingPanel())

self.panels.append(panels.LineNumberPanel())

self.panels.append(panels.CheckerPanel())

self.panels.append(panels.SearchAndReplacePanel(),

panels.SearchAndReplacePanel.Position.BOTTOM)

self.panels.append(panels.EncodingPanel(), api.Panel.Position.TOP)

# add a context menu separator between editor's

# builtin action and the python specific actions

self.add_separator()

#--- python specific panels

self.panels.append(pypanels.QuickDocPanel(), api.Panel.Position.BOTTOM)

#--- core modes

self.modes.append(modes.CaretLineHighlighterMode())

self.modes.append(modes.CodeCompletionMode())

self.modes.append(modes.ExtendedSelectionMode())

self.modes.append(modes.FileWatcherMode())

self.modes.append(modes.OccurrencesHighlighterMode())

self.modes.append(modes.RightMarginMode())

self.modes.append(modes.SmartBackSpaceMode())

self.modes.append(modes.SymbolMatcherMode())

self.modes.append(modes.ZoomMode())

#--- python specific modes

self.modes.append(pymodes.CommentsMode())

self.modes.append(pymodes.CalltipsMode())

self.modes.append(pymodes.FrostedCheckerMode())

self.modes.append(pymodes.PEP8CheckerMode())

self.modes.append(pymodes.PyAutoCompleteMode())

self.modes.append(pymodes.PyAutoIndentMode())

self.modes.append(pymodes.PyIndenterMode())

app = QtWidgets.QApplication(sys.argv)

window = QtWidgets.QMainWindow()

editor = MyPythonCodeEdit()

editor.file.open(__file__)

window.setCentralWidget(editor)

window.show()

app.exec_()