class ExternalPythonShell(ExternalShellBase):
"""External Shell widget: execute Python script in a separate process"""
SHELL_CLASS = ExtPythonShellWidget
sig_pdb = Signal(str, int)
open_file = Signal(str, int)
started = Signal()
sig_finished = Signal()
def __init__(self,
parent=None,
fname=None,
wdir=None,
interact=False,
debug=False,
post_mortem=False,
path=[],
python_args='',
arguments='',
stand_alone=None,
umr_enabled=True,
umr_namelist=[],
umr_verbose=True,
pythonstartup=None,
pythonexecutable=None,
external_interpreter=False,
monitor_enabled=True,
mpl_backend=None,
ets_backend='qt4',
qt_api=None,
merge_output_channels=False,
colorize_sys_stderr=False,
autorefresh_timeout=3000,
autorefresh_state=True,
light_background=True,
menu_actions=None,
show_buttons_inside=True,
show_elapsed_time=True):
assert qt_api in (None, 'pyqt', 'pyside', 'pyqt5')
self.namespacebrowser = None # namespace browser widget!
self.dialog_manager = DialogManager()
self.stand_alone = stand_alone # stand alone settings (None: plugin)
self.interact = interact
self.pythonstartup = pythonstartup
self.pythonexecutable = pythonexecutable
self.external_interpreter = external_interpreter
self.monitor_enabled = monitor_enabled
self.mpl_backend = mpl_backend
self.ets_backend = ets_backend
self.qt_api = qt_api
self.merge_output_channels = merge_output_channels
self.colorize_sys_stderr = colorize_sys_stderr
self.umr_enabled = umr_enabled
self.umr_namelist = umr_namelist
self.umr_verbose = umr_verbose
self.autorefresh_timeout = autorefresh_timeout
self.autorefresh_state = autorefresh_state
self.namespacebrowser_button = None
self.cwd_button = None
self.env_button = None
self.syspath_button = None
self.terminate_button = None
self.notification_thread = None
ExternalShellBase.__init__(self,
parent=parent,
fname=fname,
wdir=wdir,
history_filename='history.py',
light_background=light_background,
menu_actions=menu_actions,
show_buttons_inside=show_buttons_inside,
show_elapsed_time=show_elapsed_time)
if self.pythonexecutable is None:
self.pythonexecutable = get_python_executable()
self.python_args = None
if python_args:
assert is_text_string(python_args)
self.python_args = python_args
assert is_text_string(arguments)
self.arguments = arguments
self.connection_file = None
self.shell.set_externalshell(self)
self.toggle_globals_explorer(False)
self.interact_action.setChecked(self.interact)
self.debug_action.setChecked(debug)
self.introspection_socket = None
self.is_interpreter = fname is None
if self.is_interpreter:
self.terminate_button.hide()
self.post_mortem_action.setChecked(post_mortem
and not self.is_interpreter)
# Additional python path list
self.path = path
self.shell.path = path
def set_introspection_socket(self, introspection_socket):
self.introspection_socket = introspection_socket
if self.namespacebrowser is not None:
settings = self.namespacebrowser.get_view_settings()
communicate(introspection_socket,
'set_remote_view_settings()',
settings=[settings])
def set_autorefresh_timeout(self, interval):
if self.introspection_socket is not None:
try:
communicate(self.introspection_socket,
"set_monitor_timeout(%d)" % interval)
except socket.error:
pass
def closeEvent(self, event):
self.quit_monitor()
ExternalShellBase.closeEvent(self, event)
def get_toolbar_buttons(self):
ExternalShellBase.get_toolbar_buttons(self)
if self.namespacebrowser_button is None \
and self.stand_alone is not None:
self.namespacebrowser_button = create_toolbutton(
self,
text=_("Variables"),
icon=ima.icon('dictedit'),
tip=_("Show/hide global variables explorer"),
toggled=self.toggle_globals_explorer,
text_beside_icon=True)
if self.terminate_button is None:
self.terminate_button = create_toolbutton(
self,
text=_("Terminate"),
icon=ima.icon('stop'),
tip=_("Attempts to stop the process. The process\n"
"may not exit as a result of clicking this\n"
"button (it is given the chance to prompt\n"
"the user for any unsaved files, etc)."))
buttons = []
if self.namespacebrowser_button is not None:
buttons.append(self.namespacebrowser_button)
buttons += [
self.run_button, self.terminate_button, self.kill_button,
self.options_button
]
return buttons
def get_options_menu(self):
ExternalShellBase.get_options_menu(self)
self.interact_action = create_action(self, _("Interact"))
self.interact_action.setCheckable(True)
self.debug_action = create_action(self, _("Debug"))
self.debug_action.setCheckable(True)
self.args_action = create_action(self,
_("Arguments..."),
triggered=self.get_arguments)
self.post_mortem_action = create_action(self, _("Post Mortem Debug"))
self.post_mortem_action.setCheckable(True)
run_settings_menu = QMenu(_("Run settings"), self)
add_actions(run_settings_menu,
(self.interact_action, self.debug_action, self.args_action,
self.post_mortem_action))
self.cwd_button = create_action(
self,
_("Working directory"),
icon=ima.icon('DirOpenIcon'),
tip=_("Set current working directory"),
triggered=self.set_current_working_directory)
self.env_button = create_action(self,
_("Environment variables"),
icon=ima.icon('environ'),
triggered=self.show_env)
self.syspath_button = create_action(self,
_("Show sys.path contents"),
icon=ima.icon('syspath'),
triggered=self.show_syspath)
actions = [
run_settings_menu, self.show_time_action, None, self.cwd_button,
self.env_button, self.syspath_button
]
if self.menu_actions is not None:
actions += [None] + self.menu_actions
return actions
def is_interpreter(self):
"""Return True if shellwidget is a Python interpreter"""
return self.is_interpreter
def get_shell_widget(self):
if self.stand_alone is None:
return self.shell
else:
self.namespacebrowser = NamespaceBrowser(self)
settings = self.stand_alone
self.namespacebrowser.set_shellwidget(self)
self.namespacebrowser.setup(**settings)
self.namespacebrowser.sig_collapse.connect(
lambda: self.toggle_globals_explorer(False))
# Shell splitter
self.splitter = splitter = QSplitter(Qt.Vertical, self)
self.splitter.splitterMoved.connect(self.splitter_moved)
splitter.addWidget(self.shell)
splitter.setCollapsible(0, False)
splitter.addWidget(self.namespacebrowser)
splitter.setStretchFactor(0, 1)
splitter.setStretchFactor(1, 0)
splitter.setHandleWidth(5)
splitter.setSizes([2, 1])
return splitter
def get_icon(self):
return ima.icon('python')
def set_buttons_runnning_state(self, state):
ExternalShellBase.set_buttons_runnning_state(self, state)
self.interact_action.setEnabled(not state and not self.is_interpreter)
self.debug_action.setEnabled(not state and not self.is_interpreter)
self.args_action.setEnabled(not state and not self.is_interpreter)
self.post_mortem_action.setEnabled(not state
and not self.is_interpreter)
if state:
if self.arguments:
argstr = _("Arguments: %s") % self.arguments
else:
argstr = _("No argument")
else:
argstr = _("Arguments...")
self.args_action.setText(argstr)
self.terminate_button.setVisible(not self.is_interpreter and state)
if not state:
self.toggle_globals_explorer(False)
for btn in (self.cwd_button, self.env_button, self.syspath_button):
btn.setEnabled(state and self.monitor_enabled)
if self.namespacebrowser_button is not None:
self.namespacebrowser_button.setEnabled(state)
def set_namespacebrowser(self, namespacebrowser):
"""
Set namespace browser *widget*
Note: this method is not used in stand alone mode
"""
self.namespacebrowser = namespacebrowser
self.configure_namespacebrowser()
def configure_namespacebrowser(self):
"""Connect the namespace browser to the notification thread"""
if self.notification_thread is not None:
self.notification_thread.refresh_namespace_browser.connect(
self.namespacebrowser.refresh_table)
signal = self.notification_thread.sig_process_remote_view
signal.connect(
lambda data: self.namespacebrowser.process_remote_view(data))
def create_process(self):
self.shell.clear()
self.process = QProcess(self)
if self.merge_output_channels:
self.process.setProcessChannelMode(QProcess.MergedChannels)
else:
self.process.setProcessChannelMode(QProcess.SeparateChannels)
self.shell.wait_for_ready_read.connect(
lambda: self.process.waitForReadyRead(250))
# Working directory
if self.wdir is not None:
self.process.setWorkingDirectory(self.wdir)
#-------------------------Python specific------------------------------
# Python arguments
p_args = ['-u']
if DEBUG >= 3:
p_args += ['-v']
p_args += get_python_args(self.fname, self.python_args,
self.interact_action.isChecked(),
self.debug_action.isChecked(),
self.arguments)
env = [
to_text_string(_path)
for _path in self.process.systemEnvironment()
]
if self.pythonstartup:
env.append('PYTHONSTARTUP=%s' % self.pythonstartup)
#-------------------------Python specific-------------------------------
# Post mortem debugging
if self.post_mortem_action.isChecked():
env.append('SPYDER_EXCEPTHOOK=True')
# Set standard input/output encoding for Python consoles
# See http://stackoverflow.com/q/26312400/438386, specifically
# the comments of Martijn Pieters
env.append('PYTHONIOENCODING=UTF-8')
# Monitor
if self.monitor_enabled:
env.append('SPYDER_SHELL_ID=%s' % id(self))
env.append('SPYDER_AR_TIMEOUT=%d' % self.autorefresh_timeout)
env.append('SPYDER_AR_STATE=%r' % self.autorefresh_state)
from spyder.widgets.externalshell import introspection
introspection_server = introspection.start_introspection_server()
introspection_server.register(self)
notification_server = introspection.start_notification_server()
self.notification_thread = notification_server.register(self)
self.notification_thread.sig_pdb.connect(
lambda fname, lineno: self.sig_pdb.emit(fname, lineno))
self.notification_thread.open_file.connect(
lambda fname, lineno: self.open_file.emit(fname, lineno))
if self.namespacebrowser is not None:
self.configure_namespacebrowser()
env.append('SPYDER_I_PORT=%d' % introspection_server.port)
env.append('SPYDER_N_PORT=%d' % notification_server.port)
# External modules options
env.append('ETS_TOOLKIT=%s' % self.ets_backend)
if self.mpl_backend is not None:
backends = {0: 'Automatic', 1: 'None', 2: 'TkAgg'}
env.append('SPY_MPL_BACKEND=%s' % backends[self.mpl_backend])
if self.qt_api:
env.append('QT_API=%s' % self.qt_api)
env.append('COLORIZE_SYS_STDERR=%s' % self.colorize_sys_stderr)
# # Socket-based alternative (see input hook in sitecustomize.py):
# if self.install_qt_inputhook:
# from PyQt4.QtNetwork import QLocalServer
# self.local_server = QLocalServer()
# self.local_server.listen(str(id(self)))
# User Module Deleter
if self.is_interpreter:
env.append('UMR_ENABLED=%r' % self.umr_enabled)
env.append('UMR_NAMELIST=%s' % ','.join(self.umr_namelist))
env.append('UMR_VERBOSE=%r' % self.umr_verbose)
env.append('MATPLOTLIB_ION=True')
else:
if self.interact:
env.append('MATPLOTLIB_ION=True')
else:
env.append('MATPLOTLIB_ION=False')
# External interpreter
env.append('EXTERNAL_INTERPRETER=%r' % self.external_interpreter)
# Add sitecustomize path to path list
pathlist = []
spy_path = get_module_source_path('spyder')
sc_path = osp.join(spy_path, 'utils', 'site')
pathlist.append(sc_path)
# Adding Spyder path
pathlist += self.path
# Adding path list to PYTHONPATH environment variable
add_pathlist_to_PYTHONPATH(env, pathlist)
#-------------------------Python specific------------------------------
self.process.readyReadStandardOutput.connect(self.write_output)
self.process.readyReadStandardError.connect(self.write_error)
self.process.finished.connect(
lambda ec, es=QProcess.ExitStatus: self.finished(ec, es))
self.sig_finished.connect(self.dialog_manager.close_all)
self.terminate_button.clicked.connect(self.process.terminate)
self.kill_button.clicked.connect(self.process.kill)
#-------------------------Python specific------------------------------
# Fixes for our Mac app:
# 1. PYTHONPATH and PYTHONHOME are set while bootstrapping the app,
# but their values are messing sys.path for external interpreters
# (e.g. EPD) so we need to remove them from the environment.
# 2. Set PYTHONPATH again but without grabbing entries defined in the
# environment (Fixes Issue 1321)
# 3. Remove PYTHONOPTIMIZE from env so that we can have assert
# statements working with our interpreters (See Issue 1281)
if running_in_mac_app():
if MAC_APP_NAME not in self.pythonexecutable:
env = [p for p in env if not (p.startswith('PYTHONPATH') or \
p.startswith('PYTHONHOME'))] # 1.
add_pathlist_to_PYTHONPATH(env, pathlist, drop_env=True) # 2.
env = [p for p in env if not p.startswith('PYTHONOPTIMIZE')] # 3.
processEnvironment = QProcessEnvironment()
for envItem in env:
envName, separator, envValue = envItem.partition('=')
processEnvironment.insert(envName, envValue)
self.process.setProcessEnvironment(processEnvironment)
self.process.start(self.pythonexecutable, p_args)
#-------------------------Python specific------------------------------
running = self.process.waitForStarted(3000)
self.set_running_state(running)
if not running:
QMessageBox.critical(self, _("Error"),
_("A Python console failed to start!"))
else:
self.shell.setFocus()
self.started.emit()
return self.process
def finished(self, exit_code, exit_status):
"""Reimplement ExternalShellBase method"""
ExternalShellBase.finished(self, exit_code, exit_status)
self.introspection_socket = None
#==============================================================================
# Input/Output
#==============================================================================
def write_error(self):
if os.name == 'nt':
#---This is apparently necessary only on Windows (not sure though):
# emptying standard output buffer before writing error output
self.process.setReadChannel(QProcess.StandardOutput)
if self.process.waitForReadyRead(1):
self.write_output()
self.shell.write_error(self.get_stderr())
QApplication.processEvents()
def send_to_process(self, text):
if not self.is_running():
return
if not is_text_string(text):
text = to_text_string(text)
if self.mpl_backend == 0 and os.name == 'nt' and \
self.introspection_socket is not None:
communicate(self.introspection_socket,
"toggle_inputhook_flag(True)")
# # Socket-based alternative (see input hook in sitecustomize.py):
# while self.local_server.hasPendingConnections():
# self.local_server.nextPendingConnection().write('go!')
if any([text == cmd for cmd in ['%ls', '%pwd', '%scientific']]) or \
any([text.startswith(cmd) for cmd in ['%cd ', '%clear ']]):
text = 'evalsc(r"%s")\n' % text
if not text.endswith('\n'):
text += '\n'
self.process.write(to_binary_string(text, 'utf8'))
self.process.waitForBytesWritten(-1)
# Eventually write prompt faster (when hitting Enter continuously)
# -- necessary/working on Windows only:
if os.name == 'nt':
self.write_error()
def keyboard_interrupt(self):
if self.introspection_socket is not None:
communicate(self.introspection_socket, "thread.interrupt_main()")
def quit_monitor(self):
if self.introspection_socket is not None:
try:
write_packet(self.introspection_socket, "thread.exit()")
except socket.error:
pass
#==============================================================================
# Globals explorer
#==============================================================================
@Slot(bool)
def toggle_globals_explorer(self, state):
if self.stand_alone is not None:
self.splitter.setSizes([1, 1 if state else 0])
self.namespacebrowser_button.setChecked(state)
if state and self.namespacebrowser is not None:
self.namespacebrowser.refresh_table()
def splitter_moved(self, pos, index):
self.namespacebrowser_button.setChecked(self.splitter.sizes()[1])
#==============================================================================
# Misc.
#==============================================================================
@Slot()
def set_current_working_directory(self):
"""Set current working directory"""
cwd = self.shell.get_cwd()
self.redirect_stdio.emit(False)
directory = getexistingdirectory(self, _("Select directory"), cwd)
if directory:
self.shell.set_cwd(directory)
self.redirect_stdio.emit(True)
@Slot()
def show_env(self):
"""Show environment variables"""
get_func = self.shell.get_env
set_func = self.shell.set_env
self.dialog_manager.show(RemoteEnvDialog(get_func, set_func))
@Slot()
def show_syspath(self):
"""Show sys.path contents"""
editor = CollectionsEditor()
editor.setup(self.shell.get_syspath(),
title="sys.path",
readonly=True,
width=600,
icon=ima.icon('syspath'))
self.dialog_manager.show(editor)
class ExternalSystemShell(ExternalShellBase):
"""External Shell widget: execute Python script in a separate process"""
SHELL_CLASS = TerminalWidget
started = Signal()
def __init__(self, parent=None, wdir=None, path=[], light_background=True,
menu_actions=None, show_buttons_inside=True,
show_elapsed_time=True):
ExternalShellBase.__init__(self, parent=parent, fname=None, wdir=wdir,
history_filename='.history',
light_background=light_background,
menu_actions=menu_actions,
show_buttons_inside=show_buttons_inside,
show_elapsed_time=show_elapsed_time)
# Additional python path list
self.path = path
# For compatibility with the other shells that can live in the external
# console
self.is_ipykernel = False
self.connection_file = None
def get_icon(self):
return ima.icon('cmdprompt')
def finish_process(self):
while not self.process.waitForFinished(100):
self.process.kill();
def create_process(self):
self.shell.clear()
self.process = QProcess(self)
self.process.setProcessChannelMode(QProcess.MergedChannels)
# PYTHONPATH (in case we use Python in this terminal, e.g. py2exe)
env = [to_text_string(_path)
for _path in self.process.systemEnvironment()]
processEnvironment = QProcessEnvironment()
for envItem in env:
envName, separator, envValue = envItem.partition('=')
processEnvironment.insert(envName, envValue)
add_pathlist_to_PYTHONPATH(env, self.path)
self.process.setProcessEnvironment(processEnvironment)
# Working directory
if self.wdir is not None:
self.process.setWorkingDirectory(self.wdir)
# Shell arguments
if os.name == 'nt':
p_args = ['/Q']
else:
p_args = ['-i']
if self.arguments:
p_args.extend( shell_split(self.arguments) )
self.process.readyReadStandardOutput.connect(self.write_output)
self.process.finished.connect(self.finished)
self.kill_button.clicked.connect(self.process.kill)
if os.name == 'nt':
self.process.start('cmd.exe', p_args)
else:
# Using bash:
self.process.start('bash', p_args)
self.send_to_process('PS1="\\u@\\h:\\w> "\n')
running = self.process.waitForStarted()
self.set_running_state(running)
if not running:
QMessageBox.critical(self, _("Error"),
_("Process failed to start"))
else:
self.shell.setFocus()
self.started.emit()
return self.process
#===============================================================================
# Input/Output
#===============================================================================
def transcode(self, qba):
if os.name == 'nt':
return to_text_string( CP850_CODEC.toUnicode(qba.data()) )
else:
return ExternalShellBase.transcode(self, qba)
def send_to_process(self, text):
if not is_text_string(text):
text = to_text_string(text)
if text[:-1] in ["clear", "cls", "CLS"]:
self.shell.clear()
self.send_to_process(os.linesep)
return
if not text.endswith('\n'):
text += '\n'
if os.name == 'nt':
self.process.write(text.encode('cp850'))
else:
self.process.write(LOCALE_CODEC.fromUnicode(text))
self.process.waitForBytesWritten(-1)
def keyboard_interrupt(self):
# This does not work on Windows:
# (unfortunately there is no easy way to send a Ctrl+C to cmd.exe)
self.send_ctrl_to_process('c')
class ExternalSystemShell(ExternalShellBase):
"""External Shell widget: execute Python script in a separate process"""
SHELL_CLASS = TerminalWidget
started = Signal()
def __init__(self,
parent=None,
wdir=None,
path=[],
light_background=True,
menu_actions=None,
show_buttons_inside=True,
show_elapsed_time=True):
ExternalShellBase.__init__(self,
parent=parent,
fname=None,
wdir=wdir,
history_filename='.history',
light_background=light_background,
menu_actions=menu_actions,
show_buttons_inside=show_buttons_inside,
show_elapsed_time=show_elapsed_time)
# Additional python path list
self.path = path
# For compatibility with the other shells that can live in the external
# console
self.is_ipykernel = False
self.connection_file = None
def get_icon(self):
return ima.icon('cmdprompt')
def finish_process(self):
while not self.process.waitForFinished(100):
self.process.kill()
def create_process(self):
self.shell.clear()
self.process = QProcess(self)
self.process.setProcessChannelMode(QProcess.MergedChannels)
# PYTHONPATH (in case we use Python in this terminal, e.g. py2exe)
env = [
to_text_string(_path)
for _path in self.process.systemEnvironment()
]
processEnvironment = QProcessEnvironment()
for envItem in env:
envName, separator, envValue = envItem.partition('=')
processEnvironment.insert(envName, envValue)
add_pathlist_to_PYTHONPATH(env, self.path)
self.process.setProcessEnvironment(processEnvironment)
# Working directory
if self.wdir is not None:
self.process.setWorkingDirectory(self.wdir)
# Shell arguments
if os.name == 'nt':
p_args = ['/Q']
else:
p_args = ['-i']
if self.arguments:
p_args.extend(shell_split(self.arguments))
self.process.readyReadStandardOutput.connect(self.write_output)
self.process.finished.connect(self.finished)
self.kill_button.clicked.connect(self.process.kill)
if os.name == 'nt':
self.process.start('cmd.exe', p_args)
else:
# Using bash:
self.process.start('bash', p_args)
self.send_to_process('PS1="\\u@\\h:\\w> "\n')
running = self.process.waitForStarted()
self.set_running_state(running)
if not running:
QMessageBox.critical(self, _("Error"),
_("Process failed to start"))
else:
self.shell.setFocus()
self.started.emit()
return self.process
#===============================================================================
# Input/Output
#===============================================================================
def transcode(self, qba):
if os.name == 'nt':
return to_text_string(CP850_CODEC.toUnicode(qba.data()))
else:
return ExternalShellBase.transcode(self, qba)
def send_to_process(self, text):
if not is_text_string(text):
text = to_text_string(text)
if text[:-1] in ["clear", "cls", "CLS"]:
self.shell.clear()
self.send_to_process(os.linesep)
return
if not text.endswith('\n'):
text += '\n'
if os.name == 'nt':
self.process.write(text.encode('cp850'))
else:
self.process.write(LOCALE_CODEC.fromUnicode(text))
self.process.waitForBytesWritten(-1)
def keyboard_interrupt(self):
# This does not work on Windows:
# (unfortunately there is no easy way to send a Ctrl+C to cmd.exe)
self.send_ctrl_to_process('c')
class ProcessWorker(QObject):
"""Process worker based on a QProcess for non blocking UI."""
sig_started = Signal(object)
sig_partial = Signal(object, object, object)
sig_finished = Signal(object, object, object)
def __init__(self, cmd_list, environ=None):
"""
Process worker based on a QProcess for non blocking UI.
Parameters
----------
cmd_list : list of str
Command line arguments to execute.
environ : dict
Process environment,
"""
super(ProcessWorker, self).__init__()
self._result = None
self._cmd_list = cmd_list
self._fired = False
self._communicate_first = False
self._partial_stdout = None
self._partial_stderr = None
self._started = False
self._timer = QTimer()
self._process = QProcess()
self._set_environment(environ)
self._timer.setInterval(150)
self._timer.timeout.connect(self._communicate)
self._process.readyReadStandardOutput.connect(self._partial)
def _get_encoding(self):
"""Return the encoding/codepage to use."""
enco = 'utf-8'
# Currently only cp1252 is allowed?
if WIN:
import ctypes
codepage = to_text_string(ctypes.cdll.kernel32.GetACP())
# import locale
# locale.getpreferredencoding() # Differences?
enco = 'cp' + codepage
return enco
def _set_environment(self, environ):
"""Set the environment on the QProcess."""
if environ:
q_environ = self._process.processEnvironment()
for k, v in environ.items():
q_environ.insert(k, v)
self._process.setProcessEnvironment(q_environ)
def _partial(self):
"""Callback for partial output."""
raw_stdout = self._process.readAllStandardOutput()
stdout = handle_qbytearray(raw_stdout, self._get_encoding())
# raw_stderr = self._process.readAllStandardError()
# stderr = handle_qbytearray(raw_stderr, self._get_encoding())
if self._partial_stdout is None:
self._partial_stdout = stdout
else:
self._partial_stdout += stdout
# if self._partial_stderr is None:
# self._partial_stderr = stderr
# else:
# self._partial_stderr += stderr
# FIXME: use the piece or the cummulative?
self.sig_partial.emit(self, stdout, None)
def _communicate(self):
"""Callback for communicate."""
if (not self._communicate_first and
self._process.state() == QProcess.NotRunning):
self.communicate()
elif self._fired:
self._timer.stop()
def communicate(self):
"""Retrieve information."""
self._communicate_first = True
self._process.waitForFinished()
enco = self._get_encoding()
if self._partial_stdout is None:
raw_stdout = self._process.readAllStandardOutput()
stdout = handle_qbytearray(raw_stdout, enco)
else:
stdout = self._partial_stdout
if self._partial_stderr is None:
raw_stderr = self._process.readAllStandardError()
stderr = handle_qbytearray(raw_stderr, enco)
else:
stderr = self._partial_stderr
if PY2:
stdout = stdout.decode()
stderr = stderr.decode()
result = [stdout, stderr]
self._result = result
if not self._fired:
self.sig_finished.emit(self, result[0], result[-1])
self._fired = True
return result
def close(self):
"""Close the running process."""
self._process.close()
def is_finished(self):
"""Return True if worker has finished processing."""
return self._process.state() == QProcess.NotRunning and self._fired
def _start(self):
"""Start process."""
if not self._fired:
# print(self._cmd_list)
self._partial_ouput = None
self._process.start(self._cmd_list[0], self._cmd_list[1:])
self._timer.start()
def terminate(self):
"""Terminate running processes."""
if self._process.state() == QProcess.Running:
try:
self._process.terminate()
except Exception:
pass
self._fired = True
def write(self, data):
if self._started:
self._process.write(data)
def start(self):
"""Start worker."""
if not self._started:
self.sig_started.emit(self)
self._started = True
class ExternalPythonShell(ExternalShellBase):
"""External Shell widget: execute Python script in a separate process"""
SHELL_CLASS = ExtPythonShellWidget
sig_pdb = Signal(str, int)
open_file = Signal(str, int)
ipython_kernel_start_error = Signal(str)
create_ipython_client = Signal(str)
started = Signal()
sig_finished = Signal()
def __init__(self, parent=None, fname=None, wdir=None,
interact=False, debug=False, post_mortem=False,
path=[], python_args='',
ipykernel=False, arguments='', stand_alone=None,
umr_enabled=True, umr_namelist=[], umr_verbose=True,
pythonstartup=None, pythonexecutable=None,
external_interpreter=False,
monitor_enabled=True, mpl_backend=None, ets_backend='qt4',
qt_api=None, merge_output_channels=False,
colorize_sys_stderr=False, autorefresh_timeout=3000,
autorefresh_state=True, light_background=True,
menu_actions=None, show_buttons_inside=True,
show_elapsed_time=True):
assert qt_api in (None, 'pyqt', 'pyside', 'pyqt5')
self.namespacebrowser = None # namespace browser widget!
self.dialog_manager = DialogManager()
self.stand_alone = stand_alone # stand alone settings (None: plugin)
self.interact = interact
self.is_ipykernel = ipykernel
self.pythonstartup = pythonstartup
self.pythonexecutable = pythonexecutable
self.external_interpreter = external_interpreter
self.monitor_enabled = monitor_enabled
self.mpl_backend = mpl_backend
self.ets_backend = ets_backend
self.qt_api = qt_api
self.merge_output_channels = merge_output_channels
self.colorize_sys_stderr = colorize_sys_stderr
self.umr_enabled = umr_enabled
self.umr_namelist = umr_namelist
self.umr_verbose = umr_verbose
self.autorefresh_timeout = autorefresh_timeout
self.autorefresh_state = autorefresh_state
self.namespacebrowser_button = None
self.cwd_button = None
self.env_button = None
self.syspath_button = None
self.terminate_button = None
self.notification_thread = None
ExternalShellBase.__init__(self, parent=parent, fname=fname, wdir=wdir,
history_filename='history.py',
light_background=light_background,
menu_actions=menu_actions,
show_buttons_inside=show_buttons_inside,
show_elapsed_time=show_elapsed_time)
if self.pythonexecutable is None:
self.pythonexecutable = get_python_executable()
self.python_args = None
if python_args:
assert is_text_string(python_args)
self.python_args = python_args
assert is_text_string(arguments)
self.arguments = arguments
self.connection_file = None
if self.is_ipykernel:
self.interact = False
# Running our custom startup script for IPython kernels:
# (see spyderlib/widgets/externalshell/start_ipython_kernel.py)
self.fname = get_module_source_path(
'spyderlib.widgets.externalshell', 'start_ipython_kernel.py')
self.shell.set_externalshell(self)
self.toggle_globals_explorer(False)
self.interact_action.setChecked(self.interact)
self.debug_action.setChecked(debug)
self.introspection_socket = None
self.is_interpreter = fname is None
if self.is_interpreter:
self.terminate_button.hide()
self.post_mortem_action.setChecked(post_mortem and not self.is_interpreter)
# Additional python path list
self.path = path
self.shell.path = path
def set_introspection_socket(self, introspection_socket):
self.introspection_socket = introspection_socket
if self.namespacebrowser is not None:
settings = self.namespacebrowser.get_view_settings()
communicate(introspection_socket,
'set_remote_view_settings()', settings=[settings])
def set_autorefresh_timeout(self, interval):
if self.introspection_socket is not None:
try:
communicate(self.introspection_socket,
"set_monitor_timeout(%d)" % interval)
except socket.error:
pass
def closeEvent(self, event):
self.quit_monitor()
ExternalShellBase.closeEvent(self, event)
def get_toolbar_buttons(self):
ExternalShellBase.get_toolbar_buttons(self)
if self.namespacebrowser_button is None \
and self.stand_alone is not None:
self.namespacebrowser_button = create_toolbutton(self,
text=_("Variables"), icon=ima.icon('dictedit'),
tip=_("Show/hide global variables explorer"),
toggled=self.toggle_globals_explorer, text_beside_icon=True)
if self.terminate_button is None:
self.terminate_button = create_toolbutton(self,
text=_("Terminate"), icon=ima.icon('stop'),
tip=_("Attempts to stop the process. The process\n"
"may not exit as a result of clicking this\n"
"button (it is given the chance to prompt\n"
"the user for any unsaved files, etc)."))
buttons = []
if self.namespacebrowser_button is not None:
buttons.append(self.namespacebrowser_button)
buttons += [self.run_button, self.terminate_button, self.kill_button,
self.options_button]
return buttons
def get_options_menu(self):
ExternalShellBase.get_options_menu(self)
self.interact_action = create_action(self, _("Interact"))
self.interact_action.setCheckable(True)
self.debug_action = create_action(self, _("Debug"))
self.debug_action.setCheckable(True)
self.args_action = create_action(self, _("Arguments..."),
triggered=self.get_arguments)
self.post_mortem_action = create_action(self, _("Post Mortem Debug"))
self.post_mortem_action.setCheckable(True)
run_settings_menu = QMenu(_("Run settings"), self)
add_actions(run_settings_menu,
(self.interact_action, self.debug_action, self.args_action,
self.post_mortem_action))
self.cwd_button = create_action(self, _("Working directory"),
icon=ima.icon('DirOpenIcon'),
tip=_("Set current working directory"),
triggered=self.set_current_working_directory)
self.env_button = create_action(self, _("Environment variables"),
icon=ima.icon('environ'),
triggered=self.show_env)
self.syspath_button = create_action(self,
_("Show sys.path contents"),
icon=ima.icon('syspath'),
triggered=self.show_syspath)
actions = [run_settings_menu, self.show_time_action, None,
self.cwd_button, self.env_button, self.syspath_button]
if self.menu_actions is not None:
actions += [None]+self.menu_actions
return actions
def is_interpreter(self):
"""Return True if shellwidget is a Python interpreter"""
return self.is_interpreter
def get_shell_widget(self):
if self.stand_alone is None:
return self.shell
else:
self.namespacebrowser = NamespaceBrowser(self)
settings = self.stand_alone
self.namespacebrowser.set_shellwidget(self)
self.namespacebrowser.setup(**settings)
self.namespacebrowser.sig_collapse.connect(
lambda: self.toggle_globals_explorer(False))
# Shell splitter
self.splitter = splitter = QSplitter(Qt.Vertical, self)
self.splitter.splitterMoved.connect(self.splitter_moved)
splitter.addWidget(self.shell)
splitter.setCollapsible(0, False)
splitter.addWidget(self.namespacebrowser)
splitter.setStretchFactor(0, 1)
splitter.setStretchFactor(1, 0)
splitter.setHandleWidth(5)
splitter.setSizes([2, 1])
return splitter
def get_icon(self):
return ima.icon('python')
def set_buttons_runnning_state(self, state):
ExternalShellBase.set_buttons_runnning_state(self, state)
self.interact_action.setEnabled(not state and not self.is_interpreter)
self.debug_action.setEnabled(not state and not self.is_interpreter)
self.args_action.setEnabled(not state and not self.is_interpreter)
self.post_mortem_action.setEnabled(not state and not self.is_interpreter)
if state:
if self.arguments:
argstr = _("Arguments: %s") % self.arguments
else:
argstr = _("No argument")
else:
argstr = _("Arguments...")
self.args_action.setText(argstr)
self.terminate_button.setVisible(not self.is_interpreter and state)
if not state:
self.toggle_globals_explorer(False)
for btn in (self.cwd_button, self.env_button, self.syspath_button):
btn.setEnabled(state and self.monitor_enabled)
if self.namespacebrowser_button is not None:
self.namespacebrowser_button.setEnabled(state)
def set_namespacebrowser(self, namespacebrowser):
"""
Set namespace browser *widget*
Note: this method is not used in stand alone mode
"""
self.namespacebrowser = namespacebrowser
self.configure_namespacebrowser()
def configure_namespacebrowser(self):
"""Connect the namespace browser to the notification thread"""
if self.notification_thread is not None:
self.notification_thread.refresh_namespace_browser.connect(
self.namespacebrowser.refresh_table)
signal = self.notification_thread.sig_process_remote_view
signal.connect(lambda data:
self.namespacebrowser.process_remote_view(data))
def create_process(self):
self.shell.clear()
self.process = QProcess(self)
if self.merge_output_channels:
self.process.setProcessChannelMode(QProcess.MergedChannels)
else:
self.process.setProcessChannelMode(QProcess.SeparateChannels)
self.shell.wait_for_ready_read.connect(
lambda: self.process.waitForReadyRead(250))
# Working directory
if self.wdir is not None:
self.process.setWorkingDirectory(self.wdir)
#-------------------------Python specific------------------------------
# Python arguments
p_args = ['-u']
if DEBUG >= 3:
p_args += ['-v']
p_args += get_python_args(self.fname, self.python_args,
self.interact_action.isChecked(),
self.debug_action.isChecked(),
self.arguments)
env = [to_text_string(_path)
for _path in self.process.systemEnvironment()]
if self.pythonstartup:
env.append('PYTHONSTARTUP=%s' % self.pythonstartup)
#-------------------------Python specific-------------------------------
# Post mortem debugging
if self.post_mortem_action.isChecked():
env.append('SPYDER_EXCEPTHOOK=True')
# Set standard input/output encoding for Python consoles
# (IPython handles it on its own)
# See http://stackoverflow.com/q/26312400/438386, specifically
# the comments of Martijn Pieters
if not self.is_ipykernel:
env.append('PYTHONIOENCODING=UTF-8')
# Monitor
if self.monitor_enabled:
env.append('SPYDER_SHELL_ID=%s' % id(self))
env.append('SPYDER_AR_TIMEOUT=%d' % self.autorefresh_timeout)
env.append('SPYDER_AR_STATE=%r' % self.autorefresh_state)
from spyderlib.widgets.externalshell import introspection
introspection_server = introspection.start_introspection_server()
introspection_server.register(self)
notification_server = introspection.start_notification_server()
self.notification_thread = notification_server.register(self)
self.notification_thread.sig_pdb.connect(
lambda fname, lineno:
self.sig_pdb.emit(fname, lineno))
self.notification_thread.new_ipython_kernel.connect(
lambda args:
self.create_ipython_client.emit(args))
self.notification_thread.open_file.connect(
lambda fname, lineno:
self.open_file.emit(fname, lineno))
if self.namespacebrowser is not None:
self.configure_namespacebrowser()
env.append('SPYDER_I_PORT=%d' % introspection_server.port)
env.append('SPYDER_N_PORT=%d' % notification_server.port)
# External modules options
if not self.is_ipykernel:
env.append('ETS_TOOLKIT=%s' % self.ets_backend)
if self.mpl_backend is not None:
backends = {0: 'Automatic', 1: 'None', 2: 'TkAgg'}
env.append('SPY_MPL_BACKEND=%s' % backends[self.mpl_backend])
if self.qt_api and not self.is_ipykernel:
env.append('QT_API=%s' % self.qt_api)
env.append('COLORIZE_SYS_STDERR=%s' % self.colorize_sys_stderr)
# # Socket-based alternative (see input hook in sitecustomize.py):
# if self.install_qt_inputhook:
# from PyQt4.QtNetwork import QLocalServer
# self.local_server = QLocalServer()
# self.local_server.listen(str(id(self)))
# User Module Deleter
if self.is_interpreter:
env.append('UMR_ENABLED=%r' % self.umr_enabled)
env.append('UMR_NAMELIST=%s' % ','.join(self.umr_namelist))
env.append('UMR_VERBOSE=%r' % self.umr_verbose)
env.append('MATPLOTLIB_ION=True')
else:
if self.interact:
env.append('MATPLOTLIB_ION=True')
else:
env.append('MATPLOTLIB_ION=False')
# IPython kernel
env.append('IPYTHON_KERNEL=%r' % self.is_ipykernel)
# External interpreter
env.append('EXTERNAL_INTERPRETER=%r' % self.external_interpreter)
# Add sitecustomize path to path list
pathlist = []
scpath = osp.dirname(osp.abspath(__file__))
pathlist.append(scpath)
# Adding Spyder path
pathlist += self.path
# Adding path list to PYTHONPATH environment variable
add_pathlist_to_PYTHONPATH(env, pathlist)
#-------------------------Python specific------------------------------
self.process.readyReadStandardOutput.connect(self.write_output)
self.process.readyReadStandardError.connect(self.write_error)
self.process.finished.connect(lambda ec, es=QProcess.ExitStatus:
self.finished(ec, es))
self.sig_finished.connect(self.dialog_manager.close_all)
self.terminate_button.clicked.connect(self.process.terminate)
self.kill_button.clicked.connect(self.process.kill)
#-------------------------Python specific------------------------------
# Fixes for our Mac app:
# 1. PYTHONPATH and PYTHONHOME are set while bootstrapping the app,
# but their values are messing sys.path for external interpreters
# (e.g. EPD) so we need to remove them from the environment.
# 2. Set PYTHONPATH again but without grabbing entries defined in the
# environment (Fixes Issue 1321)
# 3. Remove PYTHONOPTIMIZE from env so that we can have assert
# statements working with our interpreters (See Issue 1281)
if running_in_mac_app():
if MAC_APP_NAME not in self.pythonexecutable:
env = [p for p in env if not (p.startswith('PYTHONPATH') or \
p.startswith('PYTHONHOME'))] # 1.
add_pathlist_to_PYTHONPATH(env, pathlist, drop_env=True) # 2.
env = [p for p in env if not p.startswith('PYTHONOPTIMIZE')] # 3.
processEnvironment = QProcessEnvironment()
for envItem in env:
envName, separator, envValue = envItem.partition('=')
processEnvironment.insert(envName, envValue)
self.process.setProcessEnvironment(processEnvironment)
self.process.start(self.pythonexecutable, p_args)
#-------------------------Python specific------------------------------
running = self.process.waitForStarted(3000)
self.set_running_state(running)
if not running:
if self.is_ipykernel:
self.ipython_kernel_start_error.emit(
_("The kernel failed to start!! That's all we know... "
"Please close this console and open a new one."))
else:
QMessageBox.critical(self, _("Error"),
_("A Python console failed to start!"))
else:
self.shell.setFocus()
self.started.emit()
return self.process
def finished(self, exit_code, exit_status):
"""Reimplement ExternalShellBase method"""
if self.is_ipykernel and exit_code == 1:
self.ipython_kernel_start_error.emit(self.shell.get_text_with_eol())
ExternalShellBase.finished(self, exit_code, exit_status)
self.introspection_socket = None
#==============================================================================
# Input/Output
#==============================================================================
def write_error(self):
if os.name == 'nt':
#---This is apparently necessary only on Windows (not sure though):
# emptying standard output buffer before writing error output
self.process.setReadChannel(QProcess.StandardOutput)
if self.process.waitForReadyRead(1):
self.write_output()
self.shell.write_error(self.get_stderr())
QApplication.processEvents()
def send_to_process(self, text):
if not self.is_running():
return
if not is_text_string(text):
text = to_text_string(text)
if self.mpl_backend == 0 and os.name == 'nt' and \
self.introspection_socket is not None:
communicate(self.introspection_socket, "toggle_inputhook_flag(True)")
# # Socket-based alternative (see input hook in sitecustomize.py):
# while self.local_server.hasPendingConnections():
# self.local_server.nextPendingConnection().write('go!')
if any([text == cmd for cmd in ['%ls', '%pwd', '%scientific']]) or \
any([text.startswith(cmd) for cmd in ['%cd ', '%clear ']]):
text = 'evalsc(r"%s")\n' % text
if not text.endswith('\n'):
text += '\n'
self.process.write(to_binary_string(text, 'utf8'))
self.process.waitForBytesWritten(-1)
# Eventually write prompt faster (when hitting Enter continuously)
# -- necessary/working on Windows only:
if os.name == 'nt':
self.write_error()
def keyboard_interrupt(self):
if self.introspection_socket is not None:
communicate(self.introspection_socket, "thread.interrupt_main()")
def quit_monitor(self):
if self.introspection_socket is not None:
try:
write_packet(self.introspection_socket, "thread.exit()")
except socket.error:
pass
#==============================================================================
# Globals explorer
#==============================================================================
@Slot(bool)
def toggle_globals_explorer(self, state):
if self.stand_alone is not None:
self.splitter.setSizes([1, 1 if state else 0])
self.namespacebrowser_button.setChecked(state)
if state and self.namespacebrowser is not None:
self.namespacebrowser.refresh_table()
def splitter_moved(self, pos, index):
self.namespacebrowser_button.setChecked( self.splitter.sizes()[1] )
#==============================================================================
# Misc.
#==============================================================================
@Slot()
def set_current_working_directory(self):
"""Set current working directory"""
cwd = self.shell.get_cwd()
self.redirect_stdio.emit(False)
directory = getexistingdirectory(self, _("Select directory"), cwd)
if directory:
self.shell.set_cwd(directory)
self.redirect_stdio.emit(True)
@Slot()
def show_env(self):
"""Show environment variables"""
get_func = self.shell.get_env
set_func = self.shell.set_env
self.dialog_manager.show(RemoteEnvDialog(get_func, set_func))
@Slot()
def show_syspath(self):
"""Show sys.path contents"""
editor = CollectionsEditor()
editor.setup(self.shell.get_syspath(), title="sys.path", readonly=True,
width=600, icon=ima.icon('syspath'))
self.dialog_manager.show(editor)
class InteractiveConsole(QTextEdit):
"""
An interactive console is a QTextEdit specialised to run a process
interactively
The user will see the process outputs and will be able to
interact with the process by typing some text, this text will be forwarded
to the process stdin.
You can customize the colors using the following attributes:
- stdout_color: color of the process stdout
- stdin_color: color of the user inputs. Green by default
- app_msg_color: color for custom application message (
process started, process finished)
- stderr_color: color of the process stderr
"""
#: Signal emitted when the process has finished.
process_finished = Signal(int)
process_started = Signal()
def __init__(self, parent=None):
super(InteractiveConsole, self).__init__(parent)
self.panels = PanelsManager(self)
self.decorations = TextDecorationsManager(self)
from pyqode.core.panels import SearchAndReplacePanel
self.panels.append(SearchAndReplacePanel(),
SearchAndReplacePanel.Position.TOP)
self._stdout_col = QColor("#404040")
self._app_msg_col = QColor("#4040FF")
self._stdin_col = QColor("#22AA22")
self._stderr_col = QColor("#FF0000")
self._write_app_messages = True
self._process_name = ''
self.process = None
self._args = None
self._usr_buffer = ""
self._clear_on_start = True
self._merge_outputs = False
self._running = False
self._writer = self.write
self._user_stop = False
font = "monospace"
if sys.platform == "win32":
font = "Consolas"
elif sys.platform == "darwin":
font = 'Monaco'
self._font_family = font
self.setFont(QFont(font, 10))
self.setReadOnly(True)
self._mask_user_input = False
action = QAction(_('Copy'), self)
action.setShortcut(QKeySequence.Copy)
action.triggered.connect(self.copy)
self.add_action(action)
action = QAction(_('Paste'), self)
action.setShortcut(QKeySequence.Paste)
action.triggered.connect(self.paste)
self.add_action(action)
def showEvent(self, event):
super(InteractiveConsole, self).showEvent(event)
self.panels.refresh()
def resizeEvent(self, e):
super(InteractiveConsole, self).resizeEvent(e)
self.panels.resize()
def add_action(self, action):
self.addAction(action)
action.setShortcutContext(Qt.WidgetShortcut)
def set_writer(self, writer):
"""
Changes the writer function to handle writing to the text edit.
A writer function must have the following prototype:
.. code-block:: python
def write(text_edit, text, color)
:param writer: write function as described above.
"""
if self._writer != writer and self._writer:
self._writer = None
if writer:
self._writer = writer
def _on_stdout(self):
raw = self.process.readAllStandardOutput()
txt = bytes(raw).decode(locale.getpreferredencoding())
self._writer(self, txt, self.stdout_color)
def _on_stderr(self):
txt = bytes(self.process.readAllStandardError()).decode(
locale.getpreferredencoding())
_logger().debug('%s', txt)
self._writer(self, txt, self.stderr_color)
@property
def exit_code(self):
if self.is_running:
return None
exit_status = self.process.exitStatus()
if exit_status == self.process.Crashed:
exit_code = 139
else:
exit_code = self.process.exitCode()
return exit_code
@property
def write_app_messages(self):
return self._write_app_messages
@write_app_messages.setter
def write_app_messages(self, value):
self._write_app_messages = value
@property
def background_color(self):
""" The console background color. Default is white. """
pal = self.palette()
return pal.color(pal.Base)
@background_color.setter
def background_color(self, color):
pal = self.palette()
pal.setColor(pal.Base, color)
pal.setColor(pal.Text, self.stdout_color)
self.setPalette(pal)
@property
def stdout_color(self):
""" STDOUT color. Default is black. """
return self._stdout_col
@stdout_color.setter
def stdout_color(self, color):
self._stdout_col = color
pal = self.palette()
pal.setColor(pal.Text, self._stdout_col)
self.setPalette(pal)
@property
def stderr_color(self):
"""
Color for stderr output if
:attr:`pyqode.core.widgets.InteractiveConsole.merge_outputs` is False.
Default is Red.
"""
return self._stderr_col
@stderr_color.setter
def stderr_color(self, color):
self._stderr_col = color
@property
def stdin_color(self):
"""
STDIN color. Default is green.
"""
return self._stdin_col
@stdin_color.setter
def stdin_color(self, color):
self._stdin_col = color
@property
def app_msg_color(self):
"""
Color of the application messages (e.g.: 'Process started',
'Process finished with status %d')
"""
return self._app_msg_col
@app_msg_color.setter
def app_msg_color(self, color):
self._app_msg_col = color
@property
def clear_on_start(self):
"""
True to clear window when starting a new process. False to accumulate
outputs.
"""
return self._clear_on_start
@clear_on_start.setter
def clear_on_start(self, value):
self._clear_on_start = value
@property
def merge_outputs(self):
"""
Merge stderr with stdout. Default is False.
If set to true, stderr and stdin will use the same color: stdin_color.
"""
return self._merge_outputs
@merge_outputs.setter
def merge_outputs(self, value):
self._merge_outputs = value
if value:
self.process.setProcessChannelMode(QProcess.MergedChannels)
else:
self.process.setProcessChannelMode(QProcess.SeparateChannels)
@property
def is_running(self):
"""
Checks if the process is running.
:return:
"""
return self._running
@property
def mask_user_input(self):
return self._mask_user_input
@mask_user_input.setter
def mask_user_input(self, value):
"""
If true, user input will be replaced by "*".
Could be useful to run commands as root.
"""
self._mask_user_input = value
def closeEvent(self, *args, **kwargs):
if self.process and self.process.state() == QProcess.Running:
self.process.terminate()
def start_process(self, process, args=None, cwd=None, env=None):
"""
Starts a process interactively.
:param process: Process to run
:type process: str
:param args: List of arguments (list of str)
:type args: list
:param cwd: Working directory
:type cwd: str
:param env: environment variables (dict).
"""
self.setReadOnly(False)
if env is None:
env = {}
if args is None:
args = []
if not self._running:
self.process = QProcess()
self.process.finished.connect(self._on_process_finished)
self.process.started.connect(self.process_started.emit)
self.process.error.connect(self._write_error)
self.process.readyReadStandardError.connect(self._on_stderr)
self.process.readyReadStandardOutput.connect(self._on_stdout)
if cwd:
self.process.setWorkingDirectory(cwd)
e = self.process.systemEnvironment()
ev = QProcessEnvironment()
for v in e:
values = v.split('=')
ev.insert(values[0], '='.join(values[1:]))
for k, v in env.items():
ev.insert(k, v)
self.process.setProcessEnvironment(ev)
self._running = True
self._process_name = process
self._args = args
if self._clear_on_start:
self.clear()
self._user_stop = False
self._write_started()
self.process.start(process, args)
self.process.waitForStarted()
else:
_logger().warning('a process is already running')
def stop_process(self):
"""
Stop the process (by killing it).
"""
if self.process is not None:
self._user_stop = True
self.process.kill()
self.setReadOnly(True)
self._running = False
def get_user_buffer_as_bytes(self):
"""
Returns the user buffer as a bytes.
"""
return bytes(self._usr_buffer, locale.getpreferredencoding())
def keyPressEvent(self, event):
ctrl = event.modifiers() & Qt.ControlModifier != 0
if not self.is_running or self.textCursor().hasSelection():
if event.key() == Qt.Key_C and ctrl:
self.copy()
return
propagate_to_parent = True
delete = event.key() in [Qt.Key_Backspace, Qt.Key_Delete]
if delete and not self._usr_buffer:
return
if event.key() == Qt.Key_V and ctrl:
# Paste to usr buffer
text = QApplication.clipboard().text()
self._usr_buffer += text
self.setTextColor(self._stdin_col)
if self._mask_user_input:
text = len(text) * '*'
self.insertPlainText(text)
return
if event.key() in [Qt.Key_Return, Qt.Key_Enter]:
# send the user input to the child process
if sys.platform == 'win32':
self._usr_buffer += "\r"
self._usr_buffer += "\n"
self.process.write(self.get_user_buffer_as_bytes())
self._usr_buffer = ""
else:
if not delete and len(event.text()):
txt = event.text()
self._usr_buffer += txt
if self._mask_user_input:
txt = '*'
self.setTextColor(self._stdin_col)
self.insertPlainText(txt)
propagate_to_parent = False
elif delete:
self._usr_buffer = self._usr_buffer[:len(self._usr_buffer) - 1]
# text is inserted here, the text color must be defined before this
# line
if propagate_to_parent:
super(InteractiveConsole, self).keyPressEvent(event)
self.setTextColor(self._stdout_col)
def _on_process_finished(self, exit_code, exit_status):
if self is None:
return
self._running = False
if not self._user_stop:
if self._write_app_messages:
self._writer(
self, "\nProcess finished with exit code %d" %
self.exit_code, self._app_msg_col)
_logger().debug('process finished (exit_code=%r, exit_status=%r)',
exit_code, exit_status)
try:
self.process_finished.emit(exit_code)
except TypeError:
# Signal must be bound to a QObject, not 'InteractiveConsole'
pass
else:
self.setReadOnly(True)
def _write_started(self):
if not self._write_app_messages:
return
self._writer(self, "{0} {1}\n".format(
self._process_name, " ".join(self._args)), self._app_msg_col)
self._running = True
def _write_error(self, error):
if self is None:
return
if self._user_stop:
self._writer(self, '\nProcess stopped by the user',
self.app_msg_color)
else:
err = PROCESS_ERROR_STRING[error]
self._writer(self, "Error: %s" % err, self.stderr_color)
_logger().warn('process error: %s', err)
self._running = False
@staticmethod
def write(text_edit, text, color):
"""
Default write function. Move the cursor to the end and insert text with
the specified color.
:param text_edit: QInteractiveConsole instance
:type text_edit: pyqode.widgets.QInteractiveConsole
:param text: Text to write
:type text: str
:param color: Desired text color
:type color: QColor
"""
try:
text_edit.moveCursor(QTextCursor.End)
text_edit.setTextColor(color)
text_edit.insertPlainText(text)
text_edit.moveCursor(QTextCursor.End)
except RuntimeError:
pass
def apply_color_scheme(self, color_scheme):
"""
Apply a pygments color scheme to the console.
As there is not a 1 to 1 mapping between color scheme formats and
console formats, we decided to make the following mapping (it usually
looks good for most of the available pygments styles):
- stdout_color = normal color
- stderr_color = red (lighter if background is dark)
- stdin_color = numbers color
- app_msg_color = string color
- bacgorund_color = background
:param color_scheme: pyqode.core.api.ColorScheme to apply
"""
self.stdout_color = color_scheme.formats['normal'].foreground().color()
self.stdin_color = color_scheme.formats['number'].foreground().color()
self.app_msg_color = color_scheme.formats[
'string'].foreground().color()
self.background_color = color_scheme.background
if self.background_color.lightness() < 128:
self.stderr_color = QColor('#FF8080')
else:
self.stderr_color = QColor('red')
