def _create_process(
self,
installer: InstallerTypes = "pip",
):
process = QProcess()
if installer != "pip":
process.setProgram(installer)
else:
process.setProgram(self._sys_executable_or_bundled_python())
process.setProcessChannelMode(QProcess.MergedChannels)
process.readyReadStandardOutput.connect(
lambda process=process: self._on_stdout_ready(process)
)
# setup process path
env = QProcessEnvironment()
combined_paths = os.pathsep.join(
[user_site_packages(), env.systemEnvironment().value("PYTHONPATH")]
)
env.insert("PYTHONPATH", combined_paths)
# use path of parent process
env.insert(
"PATH", QProcessEnvironment.systemEnvironment().value("PATH")
)
process.setProcessEnvironment(env)
self.set_output_widget(self._output_widget)
process.finished.connect(
lambda ec, es: self._on_process_finished(process, ec, es)
) # FIXME connecting lambda to finished signal is bug creating and may end with segfault when garbage
# collection will consume Installer object before process end.
return process
def __init__(self, parent=None):
super().__init__(parent)
self.setup_ui()
self.setAttribute(Qt.WA_DeleteOnClose)
# create install process
self.process = QProcess(self)
self.process.setProgram(sys.executable)
self.process.setProcessChannelMode(QProcess.MergedChannels)
# setup process path
env = QProcessEnvironment()
combined_paths = os.pathsep.join(
[user_site_packages(), env.systemEnvironment().value("PYTHONPATH")]
)
env.insert("PYTHONPATH", combined_paths)
self.process.setProcessEnvironment(env)
# connections
self.install_button.clicked.connect(self._install)
self.uninstall_button.clicked.connect(self._uninstall)
self.process.readyReadStandardOutput.connect(self._on_stdout_ready)
from ..plugins import plugin_manager
self.process.finished.connect(plugin_manager.discover)
self.process.finished.connect(plugin_manager.prune)
def _create_process(
self,
installer: InstallerTypes = "pip",
):
process = QProcess()
process.setProcessChannelMode(QProcess.MergedChannels)
process.readyReadStandardOutput.connect(
lambda process=process: self._on_stdout_ready(process))
env = QProcessEnvironment.systemEnvironment()
if installer == "pip":
process.setProgram(self._sys_executable_or_bundled_python())
# patch process path
combined_paths = os.pathsep.join([
user_site_packages(),
env.systemEnvironment().value("PYTHONPATH"),
])
env.insert("PYTHONPATH", combined_paths)
else:
process.setProgram(installer)
if installer == "mamba":
from ..._version import version_tuple
# To avoid napari version changing when installing a plugin, we
# add a pin to the current napari version, that way we can
# restrict any changes to the actual napari application.
# Conda/mamba also pin python by default, so we effectively
# constrain python and napari versions from changing, when
# installing plugins inside the constructor bundled application.
# See: https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-pkgs.html#preventing-packages-from-updating-pinning
napari_version = ".".join(str(v) for v in version_tuple[:3])
if env.contains("CONDA_PINNED_PACKAGES"):
# str delimiter is '&'
system_pins = f"&{env.value('CONDA_PINNED_PACKAGES')}"
else:
system_pins = ""
env.insert(
"CONDA_PINNED_PACKAGES",
f"napari={napari_version}{system_pins}",
)
if os.name == "nt":
# workaround https://github.com/napari/napari/issues/4247, 4484
if not env.contains("TEMP"):
temp = gettempdir()
env.insert("TMP", temp)
env.insert("TEMP", temp)
if not env.contains("USERPROFILE"):
env.insert("HOME", os.path.expanduser("~"))
env.insert("USERPROFILE", os.path.expanduser("~"))
process.setProcessEnvironment(env)
self.set_output_widget(self._output_widget)
process.finished.connect(
lambda ec, es: self._on_process_finished(process, ec, es)
) # FIXME connecting lambda to finished signal is bug creating and may end with segfault when garbage
# collection will consume Installer object before process end.
return process
def start_server(self, filename, interpreter):
"""
Start a notebook server asynchronously.
Start a server which can render the given notebook and return
immediately. Assume the server uses the given interpreter. The manager
will check periodically whether the server is accepting requests and
emit `sig_server_started` or `sig_server_timed_out` when appropriate.
Parameters
----------
filename : str
File name of notebook to be rendered by the server.
interpreter : str
File name of Python interpreter to be used.
"""
home_dir = get_home_dir()
if filename.startswith(home_dir):
nbdir = home_dir
else:
nbdir = osp.dirname(filename)
logger.debug('Starting new notebook server for %s', nbdir)
process = QProcess(None)
serverscript = osp.join(osp.dirname(__file__), '../server/main.py')
serverscript = osp.normpath(serverscript)
arguments = [
serverscript, '--no-browser', '--notebook-dir={}'.format(nbdir),
'--NotebookApp.password='******'--KernelSpecManager.kernel_spec_class={}'.format(KERNELSPEC)
]
if self.dark_theme:
arguments.append('--dark')
logger.debug('Arguments: %s', repr(arguments))
if DEV:
env = QProcessEnvironment.systemEnvironment()
env.insert('PYTHONPATH', osp.dirname(get_module_path('spyder')))
process.setProcessEnvironment(env)
server_process = ServerProcess(process,
notebook_dir=nbdir,
interpreter=interpreter)
process.setProcessChannelMode(QProcess.MergedChannels)
process.readyReadStandardOutput.connect(
lambda: self.read_server_output(server_process))
process.errorOccurred.connect(
lambda error: self.handle_error(server_process, error))
process.finished.connect(lambda code, status: self.handle_finished(
server_process, code, status))
process.start(sys.executable, arguments)
self.servers.append(server_process)
self._check_server_started(server_process)
def _get_environment():
env = QProcessEnvironment.systemEnvironment()
env.insert("PYTHONUNBUFFERED", "y")
env.insert("PYTHONPATH", dirname(SCRIPT_DIRECTORY))
if os.name == 'nt':
anaconda_home = conda_prefix()
path = env.value('PATH')
new_path = os.pathsep.join([
join(anaconda_home, 'Library', 'mingw-w64', 'bin'),
join(anaconda_home, 'Library', 'usr', 'bin'), path
])
env.insert("PATH", new_path)
return env
def __init__(self, output_widget: QTextEdit = None):
from ...plugins import plugin_manager
# create install process
self._output_widget = None
self.process = QProcess()
self.process.setProgram(sys.executable)
self.process.setProcessChannelMode(QProcess.MergedChannels)
self.process.readyReadStandardOutput.connect(self._on_stdout_ready)
# setup process path
env = QProcessEnvironment()
combined_paths = os.pathsep.join([
user_site_packages(),
env.systemEnvironment().value("PYTHONPATH")
])
env.insert("PYTHONPATH", combined_paths)
# use path of parent process
env.insert("PATH",
QProcessEnvironment.systemEnvironment().value("PATH"))
self.process.setProcessEnvironment(env)
self.process.finished.connect(lambda: plugin_manager.discover())
self.process.finished.connect(lambda: plugin_manager.prune())
self.set_output_widget(output_widget)
def _install(
self,
pkg_list: Sequence[str],
installer: Optional[InstallerTypes] = None,
channels: Sequence[str] = ("conda-forge", ),
):
installer = installer or self._installer_type
process_environment = QProcessEnvironment.systemEnvironment()
if installer != "pip":
from ..._version import version_tuple
# To avoid napari version changing when installing a plugin, we
# add a pin to the current napari version, that way we can
# restrict any changes to the actual napari application.
# Conda/mamba also pin python by default, so we effectively
# constrain python and napari versions from changing, when
# installing plugins inside the constructor bundled application.
# See: https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/manage-pkgs.html#preventing-packages-from-updating-pinning
napari_version = ".".join(str(v) for v in version_tuple[:3])
process_environment.insert("CONDA_PINNED_PACKAGES",
f"napari={napari_version}")
cmd = [
'install',
'-y',
'--prefix',
self._conda_env_path,
]
for channel in channels:
cmd.extend(["-c", channel])
else:
cmd = ['-m', 'pip', 'install', '--upgrade']
if (running_as_bundled_app() and sys.platform.startswith('linux')
and not self._conda_env_path):
cmd += [
'--no-warn-script-location',
'--prefix',
user_plugin_dir(),
]
process = self._create_process(installer)
process.setProcessEnvironment(process_environment)
process.setArguments(cmd + list(pkg_list))
if self._output_widget and self._queue:
self._output_widget.clear()
process.start()
return process
def _prepare_process(self, config, pythonpath):
"""
Prepare and return process for running the unit test suite.
This sets the working directory and environment.
"""
process = QProcess(self)
process.setProcessChannelMode(QProcess.MergedChannels)
process.setWorkingDirectory(config.wdir)
process.finished.connect(self.finished)
if pythonpath:
env = QProcessEnvironment.systemEnvironment()
old_python_path = env.value('PYTHONPATH', None)
python_path_str = os.pathsep.join(pythonpath)
if old_python_path:
python_path_str += os.pathsep + old_python_path
env.insert('PYTHONPATH', python_path_str)
process.setProcessEnvironment(env)
return process
def spawn_flag_process(self, stat, solver):
log.debug('Feature testing MFiX %s', solver)
key = (stat, solver)
proc = self.flag_processes.get(key, None)
if proc is not None:
proc.kill()
exe = self.solver_list.get(solver)
exe_dir = os.path.dirname(exe)
proc = self.flag_processes[key] = QProcess()
proc.setProcessEnvironment(QProcessEnvironment.systemEnvironment())
proc.readyReadStandardOutput.connect(
lambda k=key: self.flag_process_out(k))
proc.readyReadStandardError.connect(
lambda k=key: self.flag_process_error(k))
proc.finished.connect(lambda ecode, estat, k=key: self.
flag_process_finished(k, ecode, estat))
proc.error.connect(lambda e, k=key: self.flag_process_error(k, e))
proc.setWorkingDirectory(exe_dir)
proc.start(exe, ["--print-flags"])