Python QProcess.start方法代码示例

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
    def pip_list(self, name=None, prefix=None, abspath=True, emit=False):
        """
        Get list of pip installed packages.
        """
        if (name and prefix) or not (name or prefix):
            raise TypeError("conda pip: exactly one of 'name' ""or 'prefix' "
                            "required.")

        if self._is_not_running:
            cmd_list = self._abspath(abspath)
            if name:
                cmd_list.extend(['list', '--name', name])
            if prefix:
                cmd_list.extend(['list', '--prefix', prefix])

            qprocess = QProcess()
            qprocess.start(cmd_list[0], cmd_list[1:])
            qprocess.waitForFinished()
            output = qprocess.readAllStandardOutput()
            output = handle_qbytearray(output, CondaProcess.ENCODING)

            result = []
            lines = output.split('\n')

            for line in lines:
                if '<pip>' in line:
                    temp = line.split()[:-1] + ['pip']
                    result.append('-'.join(temp))

            if emit:
                self.sig_finished.emit("pip", str(result), "")

        return result

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
    def environment_exists(self, name=None, prefix=None, abspath=True,
                           emit=False):
        """
        Check if an environment exists by 'name' or by 'prefix'. If query is
        by 'name' only the default conda environments directory is searched.
        """
        if name and prefix:
            raise TypeError("Exactly one of 'name' or 'prefix' is required.")

        qprocess = QProcess()
        cmd_list = self._abspath(abspath)
        cmd_list.extend(['list', '--json'])

        if name:
            cmd_list.extend(['--name', name])
        else:
            cmd_list.extend(['--prefix', prefix])

        qprocess.start(cmd_list[0], cmd_list[1:])
        qprocess.waitForFinished()
        output = qprocess.readAllStandardOutput()
        output = handle_qbytearray(output, CondaProcess.ENCODING)
        info = json.loads(output)

        if emit:
            self.sig_finished.emit("info", unicode(info), "")

        return 'error' not in info

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
    def update_environment(self, filename, name=None, prefix=None, emit=False):
        """
        Set environment at 'prefix' or 'name' to match 'filename' spec as yaml.
        """
        if name and prefix:
            raise TypeError("Exactly one of 'name' or 'prefix' is required.")

        if self._is_not_running:
            if name:
                temporal_envname = name

            if prefix:
                temporal_envname = 'tempenv' + int(random.random()*10000000)
                envs_dir = self.info()['envs_dirs'][0]
                os.symlink(prefix, os.sep.join([envs_dir, temporal_envname]))

            cmd = self._abspath(True)
            cmd.extend(['env', 'update', '--name', temporal_envname, '--file',
                        os.path.abspath(filename)])
            qprocess = QProcess()
            qprocess.start(cmd[0], cmd[1:])
            qprocess.waitForFinished()

            if prefix:
                os.unlink(os.sep.join([envs_dir, 'tempenv']))

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
    def info(self, abspath=True):
        """
        Return a dictionary with configuration information.
        No guarantee is made about which keys exist.  Therefore this function
        should only be used for testing and debugging.
        """
#        return self._call_and_parse(['info', '--json'], abspath=abspath)

        qprocess = QProcess()
        cmd_list = self._abspath(abspath)
        cmd_list.extend(['info', '--json'])
        qprocess.start(cmd_list[0], cmd_list[1:])
        qprocess.waitForFinished()
        output = qprocess.readAllStandardOutput()
        output = handle_qbytearray(output, CondaProcess.ENCODING)
        info = json.loads(output)
        return info

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
    def info(self, abspath=True):
        """
        Return a dictionary with configuration information.

        No guarantee is made about which keys exist.  Therefore this function
        should only be used for testing and debugging.
        """
        if self._is_not_running():
            qprocess = QProcess()
            cmd_list = self._abspath(abspath)
            cmd_list.extend(["info", "--json"])
            qprocess.start(cmd_list[0], cmd_list[1:])
            qprocess.waitForFinished()
            output = qprocess.readAllStandardOutput()
            output = handle_qbytearray(output, CondaProcess.ENCODING)
            info = json.loads(output)

            self.sig_finished.emit("info", str(info), "")
            return info

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
class ProfilerWidget(QWidget):
    """
    Profiler widget
    """
    DATAPATH = get_conf_path('profiler.results')
    VERSION = '0.0.1'
    redirect_stdio = Signal(bool)
    
    def __init__(self, parent, max_entries=100):
        QWidget.__init__(self, parent)
        
        self.setWindowTitle("Profiler")
        
        self.output = None
        self.error_output = None
        
        self._last_wdir = None
        self._last_args = None
        self._last_pythonpath = None
        
        self.filecombo = PythonModulesComboBox(self)
        
        self.start_button = create_toolbutton(self, icon=ima.icon('run'),
                                    text=_("Profile"),
                                    tip=_("Run profiler"),
                                    triggered=lambda : self.start(),
                                    text_beside_icon=True)
        self.stop_button = create_toolbutton(self,
                                             icon=ima.icon('stop'),
                                             text=_("Stop"),
                                             tip=_("Stop current profiling"),
                                             text_beside_icon=True)
        self.filecombo.valid.connect(self.start_button.setEnabled)
        #self.connect(self.filecombo, SIGNAL('valid(bool)'), self.show_data)
        # FIXME: The combobox emits this signal on almost any event
        #        triggering show_data() too early, too often. 

        browse_button = create_toolbutton(self, icon=ima.icon('fileopen'),
                                          tip=_('Select Python script'),
                                          triggered=self.select_file)

        self.datelabel = QLabel()

        self.log_button = create_toolbutton(self, icon=ima.icon('log'),
                                            text=_("Output"),
                                            text_beside_icon=True,
                                            tip=_("Show program's output"),
                                            triggered=self.show_log)

        self.datatree = ProfilerDataTree(self)

        self.collapse_button = create_toolbutton(self,
                                                 icon=ima.icon('collapse'),
                                                 triggered=lambda dD:
                                                 self.datatree.change_view(-1),
                                                 tip=_('Collapse one level up'))
        self.expand_button = create_toolbutton(self,
                                               icon=ima.icon('expand'),
                                               triggered=lambda dD:
                                               self.datatree.change_view(1),
                                               tip=_('Expand one level down'))
                                
        self.save_button = create_toolbutton(self, text_beside_icon=True,
                                             text=_("Save data"),
                                             icon=ima.icon('filesave'),
                                             triggered=self.save_data,
                                             tip=_('Save profiling data'))
        self.load_button = create_toolbutton(self, text_beside_icon=True,
                            text=_("Load data"),
                            icon=ima.icon('fileimport'),
                            triggered=self.compare,
                            tip=_('Load profiling data for comparison'))
        self.clear_button = create_toolbutton(self, text_beside_icon=True,
                                              text=_("Clear comparison"),
                                              icon=ima.icon('editdelete'),
                                              triggered=self.clear)

        hlayout1 = QHBoxLayout()
        hlayout1.addWidget(self.filecombo)
        hlayout1.addWidget(browse_button)
        hlayout1.addWidget(self.start_button)
        hlayout1.addWidget(self.stop_button)

        hlayout2 = QHBoxLayout()
        hlayout2.addWidget(self.collapse_button)
        hlayout2.addWidget(self.expand_button)
        hlayout2.addStretch()
        hlayout2.addWidget(self.datelabel)
        hlayout2.addStretch()
        hlayout2.addWidget(self.log_button)
        hlayout2.addWidget(self.save_button)
        hlayout2.addWidget(self.load_button)
        hlayout2.addWidget(self.clear_button)
        
        layout = QVBoxLayout()
        layout.addLayout(hlayout1)
        layout.addLayout(hlayout2)
        layout.addWidget(self.datatree)
        self.setLayout(layout)
        
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
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="\\[email protected]\\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
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
class CondaProcess(QObject):
    """Conda API modified to work with QProcess instead of popen."""

    # Signals
    sig_finished = Signal(str, object, str)
    sig_partial = Signal(str, object, str)
    sig_started = Signal()

    ENCODING = "ascii"
    ROOT_PREFIX = None

    def __init__(self, parent):
        QObject.__init__(self, parent)
        self._parent = parent
        self._output = None
        self._partial = None
        self._stdout = None
        self._error = None
        self._parse = False
        self._function_called = ""
        self._name = None
        self._process = QProcess()
        self.set_root_prefix()

        # Signals
        self._process.finished.connect(self._call_conda_ready)
        self._process.readyReadStandardOutput.connect(self._call_conda_partial)

    # --- Helpers
    # -------------------------------------------------------------------------
    def _is_running(self):
        return self._process.state() != QProcess.NotRunning

    def _is_not_running(self):
        return self._process.state() == QProcess.NotRunning

    def _call_conda_partial(self):
        """ """
        stdout = self._process.readAllStandardOutput()
        stdout = handle_qbytearray(stdout, CondaProcess.ENCODING)

        stderr = self._process.readAllStandardError()
        stderr = handle_qbytearray(stderr, CondaProcess.ENCODING)

        if self._parse:
            try:
                self._output = json.loads(stdout)
            except Exception:
                # Result is a partial json. Can only be parsed when finished
                self._output = stdout
        else:
            self._output = stdout

        self._partial = self._output
        self._stdout = self._output
        self._error = stderr

        self.sig_partial.emit(self._function_called, self._partial, self._error)

    def _call_conda_ready(self):
        """Function called when QProcess in _call_conda finishes task."""
        function = self._function_called

        if self._stdout is None:
            stdout = to_text_string(self._process.readAllStandardOutput(), encoding=CondaProcess.ENCODING)
        else:
            stdout = self._stdout

        if self._error is None:
            stderr = to_text_string(self._process.readAllStandardError(), encoding=CondaProcess.ENCODING)
        else:
            stderr = self._error

        if function == "get_conda_version":
            pat = re.compile(r"conda:?\s+(\d+\.\d\S+|unknown)")
            m = pat.match(stderr.strip())
            if m is None:
                m = pat.match(stdout.strip())
            if m is None:
                raise Exception("output did not match: {0}".format(stderr))
            self._output = m.group(1)
        elif function == "config_path":
            result = self._output
            self._output = result["rc_path"]
        elif function == "config_get":
            result = self._output
            self._output = result["get"]
        elif (
            function == "config_delete"
            or function == "config_add"
            or function == "config_set"
            or function == "config_remove"
        ):
            result = self._output
            self._output = result.get("warnings", [])
        elif function == "pip":
            result = []
            lines = self._output.split("\n")
            for line in lines:
                if "<pip>" in line:
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
class ProcessWorker(QObject):
    """Process worker based on a QProcess for non blocking UI."""

    sig_started = Signal(object)        
    sig_finished = Signal(object, object, object)
    sig_partial = 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._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())

        if self._partial_stdout is None:
            self._partial_stdout = stdout
        else:
            self._partial_stdout += stdout

        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

        raw_stderr = self._process.readAllStandardError()
        stderr = handle_qbytearray(raw_stderr, enco)
        result = [stdout.encode(enco), stderr.encode(enco)]

        if PY2:
            stderr = stderr.decode()
        result[-1] = ''

        self._result = result

        if not self._fired:
            self.sig_finished.emit(self, result[0], result[-1])

#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
class CondaProcess(QObject):
    """Conda API modified to work with QProcess instead of popen."""

    # Signals
    sig_finished = Signal(str, object, str)
    sig_partial = Signal(str, object, str)
    sig_started = Signal()

    ENCODING = 'ascii'
    ROOT_PREFIX = None

    def __init__(self, parent):
        QObject.__init__(self, parent)
        self._parent = parent
        self._output = None
        self._partial = None
        self._stdout = None
        self._error = None
        self._parse = False
        self._function_called = ''
        self._name = None
        self._process = QProcess()
        self.set_root_prefix()

        # Signals
        self._process.finished.connect(self._call_conda_ready)
        self._process.readyReadStandardOutput.connect(self._call_conda_partial)

    # --- Helpers
    # -------------------------------------------------------------------------
    def _is_running(self):
        return self._process.state() != QProcess.NotRunning

    def _is_not_running(self):
        return self._process.state() == QProcess.NotRunning

    def _call_conda_partial(self):
        """ """
        stdout = self._process.readAllStandardOutput()
        stdout = handle_qbytearray(stdout, CondaProcess.ENCODING)

        stderr = self._process.readAllStandardError()
        stderr = handle_qbytearray(stderr, CondaProcess.ENCODING)

        if self._parse:
            try:
                self._output = json.loads(stdout)
            except Exception:
                # Result is a partial json. Can only be parsed when finished
                self._output = stdout
        else:
            self._output = stdout

        self._partial = self._output
        self._stdout = self._output
        self._error = stderr

        self.sig_partial.emit(self._function_called, self._partial,
                              self._error)

    def _call_conda_ready(self):
        """Function called when QProcess in _call_conda finishes task."""
        function = self._function_called

        if self._stdout is None:
            stdout = to_text_string(self._process.readAllStandardOutput(),
                                    encoding=CondaProcess.ENCODING)
        else:
            stdout = self._stdout

        if self._error is None:
            stderr = to_text_string(self._process.readAllStandardError(),
                                    encoding=CondaProcess.ENCODING)
        else:
            stderr = self._error

        if function == 'get_conda_version':
            pat = re.compile(r'conda:?\s+(\d+\.\d\S+|unknown)')
            m = pat.match(stderr.strip())
            if m is None:
                m = pat.match(stdout.strip())
            if m is None:
                raise Exception('output did not match: {0}'.format(stderr))
            self._output = m.group(1)
        elif function == 'config_path':
            result = self._output
            self._output = result['rc_path']
        elif function == 'config_get':
            result = self._output
            self._output = result['get']
        elif (function == 'config_delete' or function == 'config_add' or
              function == 'config_set' or function == 'config_remove'):
            result = self._output
            self._output = result.get('warnings', [])
        elif function == 'pip':
            result = []
            lines = self._output.split('\n')
            for line in lines:
                if '<pip>' in line:
                    temp = line.split()[:-1] + ['pip']
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]

#.........这里部分代码省略.........

        json_stdout = stdout.replace('\n\x00', '')
        try:
            json_stdout = json.loads(json_stdout)
        except Exception:
            json_stdout = stdout

        if self._partial_stdout is None:
            self._partial_stdout = stdout
        else:
            self._partial_stdout += stdout

        self.sig_partial.emit(self, json_stdout, None)

    def _communicate(self):
        """
        """
        if not self._communicate_first:
            if self._process.state() == QProcess.NotRunning:
                self.communicate()
        elif self._fired:
            self._timer.stop()

    def communicate(self):
        """
        """
        self._communicate_first = True
        self._process.waitForFinished()

        if self._partial_stdout is None:
            raw_stdout = self._process.readAllStandardOutput()
            stdout = handle_qbytearray(raw_stdout, _CondaAPI.UTF8)
        else:
            stdout = self._partial_stdout

        raw_stderr = self._process.readAllStandardError()
        stderr = handle_qbytearray(raw_stderr, _CondaAPI.UTF8)
        result = [stdout.encode(_CondaAPI.UTF8), stderr.encode(_CondaAPI.UTF8)]

        # FIXME: Why does anaconda client print to stderr???
        if PY2:
            stderr = stderr.decode()
        if 'using anaconda cloud api site' not in stderr.lower():
            if stderr.strip() and self._conda:
                raise Exception('{0}:\n'
                                'STDERR:\n{1}\nEND'
                                ''.format(' '.join(self._cmd_list),
                                          stderr))
#            elif stderr.strip() and self._pip:
#                raise PipError(self._cmd_list)
        else:
            result[-1] = ''

        if self._parse and stdout:
            try:
                result = json.loads(stdout), result[-1]
            except ValueError as error:
                result = stdout, error

            if 'error' in result[0]:
                error = '{0}: {1}'.format(" ".join(self._cmd_list),
                                          result[0]['error'])
                result = result[0], error

        if self._callback:
            result = self._callback(result[0], result[-1],
                                    **self._extra_kwargs), result[-1]

        self._result = result
        self.sig_finished.emit(self, result[0], result[-1])

        if result[-1]:
            logger.error(str(('error', result[-1])))

        self._fired = True

        return result

    def close(self):
        """
        """
        self._process.close()

    def is_finished(self):
        """
        """
        return self._process.state() == QProcess.NotRunning and self._fired

    def start(self):
        """
        """
        logger.debug(str(' '.join(self._cmd_list)))

        if not self._fired:
            self._partial_ouput = None
            self._process.start(self._cmd_list[0], self._cmd_list[1:])
            self._timer.start()
        else:
            raise CondaProcessWorker('A Conda ProcessWorker can only run once '
                                     'per method call.')

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
class AsyncClient(QObject):

    """
    A class which handles a connection to a client through a QProcess.
    """

    # Emitted when the client has initialized.
    initialized = Signal()

    # Emitted when the client errors.
    errored = Signal()

    # Emitted when a request response is received.
    received = Signal(object)

    def __init__(self, target, executable=None, name=None,
                 extra_args=None, libs=None, cwd=None, env=None):
        super(AsyncClient, self).__init__()
        self.executable = executable or sys.executable
        self.extra_args = extra_args
        self.target = target
        self.name = name or self
        self.libs = libs
        self.cwd = cwd
        self.env = env
        self.is_initialized = False
        self.closing = False
        self.context = zmq.Context()
        QApplication.instance().aboutToQuit.connect(self.close)

        # Set up the heartbeat timer.
        self.timer = QTimer(self)
        self.timer.timeout.connect(self._heartbeat)

    def run(self):
        """Handle the connection with the server.
        """
        # Set up the zmq port.
        self.socket = self.context.socket(zmq.PAIR)
        self.port = self.socket.bind_to_random_port('tcp://*')

        # Set up the process.
        self.process = QProcess(self)
        if self.cwd:
            self.process.setWorkingDirectory(self.cwd)
        p_args = ['-u', self.target, str(self.port)]
        if self.extra_args is not None:
            p_args += self.extra_args

        # Set up environment variables.
        processEnvironment = QProcessEnvironment()
        env = self.process.systemEnvironment()
        if (self.env and 'PYTHONPATH' not in self.env) or DEV:
            python_path = osp.dirname(get_module_path('spyderlib'))
            # Add the libs to the python path.
            for lib in self.libs:
                try:
                    path = osp.dirname(imp.find_module(lib)[1])
                    python_path = osp.pathsep.join([python_path, path])
                except ImportError:
                    pass
            env.append("PYTHONPATH=%s" % python_path)
        if self.env:
            env.update(self.env)
        for envItem in env:
            envName, separator, envValue = envItem.partition('=')
            processEnvironment.insert(envName, envValue)
        self.process.setProcessEnvironment(processEnvironment)

        # Start the process and wait for started.
        self.process.start(self.executable, p_args)
        self.process.finished.connect(self._on_finished)
        running = self.process.waitForStarted()
        if not running:
            raise IOError('Could not start %s' % self)

        # Set up the socket notifer.
        fid = self.socket.getsockopt(zmq.FD)
        self.notifier = QSocketNotifier(fid, QSocketNotifier.Read, self)
        self.notifier.activated.connect(self._on_msg_received)

    def request(self, func_name, *args, **kwargs):
        """Send a request to the server.

        The response will be a dictionary the 'request_id' and the
        'func_name' as well as a 'result' field with the object returned by
        the function call or or an 'error' field with a traceback.
        """
        if not self.is_initialized:
            return
        request_id = uuid.uuid4().hex
        request = dict(func_name=func_name,
                       args=args,
                       kwargs=kwargs,
                       request_id=request_id)
        self._send(request)
        return request_id

    def close(self):
        """Cleanly close the connection to the server.
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]
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
#.........这里部分代码省略.........

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]

#.........这里部分代码省略.........
        self._process.readyReadStandardOutput.connect(self._partial)

    def _partial(self):
        """Callback for partial output."""
        raw_stdout = self._process.readAllStandardOutput()
        stdout = handle_qbytearray(raw_stdout, _CondaAPI.UTF8)

        json_stdout = stdout.replace('\n\x00', '')
        try:
            json_stdout = json.loads(json_stdout)
        except Exception:
            json_stdout = stdout

        if self._partial_stdout is None:
            self._partial_stdout = stdout
        else:
            self._partial_stdout += stdout

        self.sig_partial.emit(self, json_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()

        if self._partial_stdout is None:
            raw_stdout = self._process.readAllStandardOutput()
            stdout = handle_qbytearray(raw_stdout, _CondaAPI.UTF8)
        else:
            stdout = self._partial_stdout

        raw_stderr = self._process.readAllStandardError()
        stderr = handle_qbytearray(raw_stderr, _CondaAPI.UTF8)
        result = [stdout.encode(_CondaAPI.UTF8), stderr.encode(_CondaAPI.UTF8)]

        # FIXME: Why does anaconda client print to stderr???
        if PY2:
            stderr = stderr.decode()
        if 'using anaconda' not in stderr.lower():
            if stderr.strip() and self._conda:
                logger.error('{0}:\nSTDERR:\n{1}\nEND'.format(
                        ' '.join(self._cmd_list), stderr))
            elif stderr.strip() and self._pip:
                logger.error("pip error: {}".format(self._cmd_list))
        result[-1] = ''

        if self._parse and stdout:
            try:
                result = json.loads(stdout), result[-1]
            except Exception as error:
                result = stdout, str(error)

            if 'error' in result[0]:
                if not isinstance(result[0], dict):
                    result = {'error': str(result[0])}, None
                error = '{0}: {1}'.format(" ".join(self._cmd_list),
                                          result[0]['error'])
                result = result[0], error

        if self._callback:
            result = self._callback(result[0], result[-1],
                                    **self._extra_kwargs), result[-1]

        self._result = result
        self.sig_finished.emit(self, result[0], result[-1])

        if result[-1]:
            logger.error(str(('error', 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."""
        logger.debug(str(' '.join(self._cmd_list)))

        if not self._fired:
            self._partial_ouput = None
            self._process.start(self._cmd_list[0], self._cmd_list[1:])
            self._timer.start()
        else:
            raise CondaProcessWorker('A Conda ProcessWorker can only run once '
                                     'per method call.')

# 需要导入模块: from qtpy.QtCore import QProcess [as 别名]
# 或者: from qtpy.QtCore.QProcess import start [as 别名]

#.........这里部分代码省略.........
            cmd_list = [python, conda]
        else:  # just use whatever conda is on the path
            cmd_list = ['conda']
        return cmd_list

    def _call_conda(self, extra_args, abspath=True):
        """ """
        # call conda with the list of extra arguments, and return the tuple
        # stdout, stderr
        global ROOT_PREFIX
#        if abspath:
#            if sys.platform == 'win32':
#                python = join(ROOT_PREFIX, 'python.exe')
#                conda = join(ROOT_PREFIX,
#                             'Scripts', 'conda-script.py')
#            else:
#                python = join(ROOT_PREFIX, 'bin/python')
#                conda = join(ROOT_PREFIX, 'bin/conda')
#            cmd_list = [python, conda]
#        else:  # just use whatever conda is on the path
#            cmd_list = ['conda']
        cmd_list = self._abspath(abspath)
        cmd_list.extend(extra_args)

#        try:
#            p = Popen(cmd_list, stdout=PIPE, stderr=PIPE)
#        except OSError:
#            raise Exception("could not invoke %r\n" % args)
#        return p.communicate()

        # adapted code
        # ------------
        self.error, self.output = None, None
        self._process.start(cmd_list[0], cmd_list[1:])

    def _call_and_parse(self, extra_args, abspath=True):
        """ """
#        stdout, stderr = _call_conda(extra_args, abspath=abspath)
#        if stderr.decode().strip():
#            raise Exception('conda %r:\nSTDERR:\n%s\nEND' % (extra_args,
#                                                             stderr.decode()))
#    return json.loads(stdout.decode())

        # adapted code
        # ------------
        self._parse = True
        self._call_conda(extra_args, abspath=abspath)

    def _setup_install_commands_from_kwargs(self, kwargs, keys=tuple()):
        """ """
        cmd_list = []
        if kwargs.get('override_channels', False) and 'channel' not in kwargs:
            raise TypeError('conda search: override_channels requires channel')

        if 'env' in kwargs:
            cmd_list.extend(['--name', kwargs.pop('env')])
        if 'prefix' in kwargs:
            cmd_list.extend(['--prefix', kwargs.pop('prefix')])
        if 'channel' in kwargs:
            channel = kwargs.pop('channel')
            if isinstance(channel, str):
                cmd_list.extend(['--channel', channel])
            else:
                cmd_list.append('--channel')
                cmd_list.extend(channel)