import contextlib
import os
import platform
import re
import subprocess
import sys
import textwrap
from importlib.metadata import PackageNotFoundError, version
from pathlib import Path
import napari
from napari.settings import get_settings
OS_RELEASE_PATH = '/etc/os-release'
def _linux_sys_name() -> str:
"""
Try to discover linux system name base on /etc/os-release file or lsb_release command output
https://www.freedesktop.org/software/systemd/man/os-release.html
"""
if os.path.exists(OS_RELEASE_PATH):
with open(OS_RELEASE_PATH) as f_p:
data = {}
for line in f_p:
field, value = line.split('=')
data[field.strip()] = value.strip().strip('"')
if 'PRETTY_NAME' in data:
return data['PRETTY_NAME']
if 'NAME' in data:
if 'VERSION' in data:
return f'{data["NAME"]} {data["VERSION"]}'
if 'VERSION_ID' in data:
return f'{data["NAME"]} {data["VERSION_ID"]}'
return f'{data["NAME"]} (no version)'
return _linux_sys_name_lsb_release()
def _linux_sys_name_lsb_release() -> str:
"""
Try to discover linux system name base on lsb_release command output
"""
with contextlib.suppress(subprocess.CalledProcessError):
res = subprocess.run(
['lsb_release', '-d', '-r'], check=True, capture_output=True
)
text = res.stdout.decode()
data = {}
for line in text.split('\n'):
key, val = line.split(':')
data[key.strip()] = val.strip()
version_str = data['Description']
if not version_str.endswith(data['Release']):
version_str += ' ' + data['Release']
return version_str
return ''
def _sys_name() -> str:
"""
Discover MacOS or Linux Human readable information. For Linux provide information about distribution.
"""
with contextlib.suppress(Exception):
if sys.platform == 'linux':
return _linux_sys_name()
if sys.platform == 'darwin':
with contextlib.suppress(subprocess.CalledProcessError):
res = subprocess.run(
['sw_vers', '-productVersion'],
check=True,
capture_output=True,
)
return f'MacOS {res.stdout.decode().strip()}'
return ''
def _napari_from_conda() -> bool:
"""
Try to check if napari was installed using conda.
This is done by checking for the presence of a conda metadata json file
in the current environment's conda-meta directory.
Returns
-------
bool
True if the main napari application is installed via conda, False otherwise.
"""
# Check for napari-related conda metadata files
napari_conda_files = list(
Path(sys.prefix, 'conda-meta').glob('napari-*.json')
)
# Match only the napari package by using napari-<version>.json
# This is to exclude plugins napari-svg, etc.
napari_pattern = re.compile(r'^napari-\d+(\.\d+)*.*\.json$')
return any(napari_pattern.match(file.name) for file in napari_conda_files)
def get_launch_command() -> str:
"""Get the information how the program was launched.
Returns
-------
str
The command used to launch the program.
"""
return ' '.join(sys.argv)
def get_plugin_list() -> str:
"""Get a list of installed plugins.
Returns
-------
str
A string containing the names and versions of installed plugins.
"""
try:
from npe2 import PluginManager
pm = PluginManager.instance()
pm.discover(include_npe1=True)
pm.index_npe1_adapters() # type: ignore[no-untyped-call]
fields = [
'name',
'package_metadata.version',
'contributions',
]
pm_dict = pm.dict(include=set(fields))
res = []
for plugin in pm_dict['plugins'].values():
count_contributions = sum(
len(x)
for x in plugin['contributions'].values()
if x is not None
)
res.append(
f' - {plugin["name"]}: {plugin["package_metadata"]["version"]} ({count_contributions} contributions)'
)
return '<br>'.join(res) + '<br>'
except ImportError as e: # pragma: no cover
return f'Failed to load plugin information: <br> {e}'
def startup_script() -> str:
"""Get information about the startup script if executed."""
from napari.utils._startup_script import startup_script_status_info
if startup_script_status_info is None:
script_path = (
get_settings().application.startup_script.expanduser().resolve()
)
if not script_path.samefile(Path()):
return f'<br><b>Startup script:</b><br> - script path: {script_path}<br>'
return ''
code_html = startup_script_status_info.script_code.replace('\n', '<br>')
return textwrap.dedent(f"""
<br><b>Startup script:</b><br>
- load time: {startup_script_status_info.startup_time}<br>
- script path: {startup_script_status_info.script_path}<br>
- script code: {code_html}<br>
""")
[docs]
def sys_info(as_html: bool = False) -> str:
"""Gathers relevant module versions for troubleshooting purposes.
Parameters
----------
as_html : bool
if True, info will be returned as HTML, suitable for a QTextEdit widget
"""
sys_version = sys.version.replace('\n', ' ')
text = f'<b>napari</b>: {napari.__version__}'
if _napari_from_conda():
text += ' (from conda)'
text += f'<br><b>Platform</b>: {platform.platform()}<br>'
__sys_name = _sys_name()
if __sys_name:
text += f'<b>System</b>: {__sys_name}<br>'
text += f'<b>Python</b>: {sys_version}<br>'
try:
from qtpy import API_NAME, PYQT_VERSION, PYSIDE_VERSION, QtCore
if API_NAME in {'PySide2', 'PySide6'}:
API_VERSION = PYSIDE_VERSION
elif API_NAME in {'PyQt5', 'PyQt6'}:
API_VERSION = PYQT_VERSION
else:
API_VERSION = ''
text += (
f'<b>Qt</b>: {QtCore.__version__}<br>'
f'<b>{API_NAME}</b>: {API_VERSION}<br>'
)
except Exception as e: # noqa BLE001
text += f'<b>Qt</b>: Import failed ({e})<br>'
modules = (
('numpy', 'NumPy'),
('scipy', 'SciPy'),
('dask', 'Dask'),
('vispy', 'VisPy'),
('magicgui', 'magicgui'),
('superqt', 'superqt'),
('in_n_out', 'in-n-out'),
('app_model', 'app-model'),
('psygnal', 'psygnal'),
('npe2', 'npe2'),
('pydantic', 'pydantic'),
)
loaded = {}
for module, name in modules:
try:
loaded[module] = __import__(module)
text += f'<b>{name}</b>: {version(module)}<br>'
except PackageNotFoundError:
text += f'<b>{name}</b>: Import failed<br>'
text += '<br><b>OpenGL:</b><br>'
try:
from OpenGL.version import __version__ as pyopengl_version
text += f' - PyOpenGL: {pyopengl_version}<br>'
except ImportError:
text += ' - PyOpenGL: Import failed<br>'
if loaded.get('vispy', False):
from napari._vispy.utils.gl import get_max_texture_sizes
sys_info_text = (
'<br>'.join(
[
loaded['vispy'].sys_info().split('\n')[index]
for index in [-4, -3]
]
)
.replace("'", '')
.replace('<br>', '<br> - ')
)
text += f' - {sys_info_text}<br>'
_, max_3d_texture_size = get_max_texture_sizes()
text += f' - GL_MAX_3D_TEXTURE_SIZE: {max_3d_texture_size}<br>'
else:
text += ' - failed to load vispy'
text += '<br><b>Screens:</b><br>'
try:
from qtpy.QtGui import QGuiApplication
screen_list = QGuiApplication.screens()
for i, screen in enumerate(screen_list, start=1):
text += f' - screen {i}: resolution {screen.geometry().width()}x{screen.geometry().height()}, scale {screen.devicePixelRatio()}<br>'
except Exception as e: # noqa BLE001
text += f' - failed to load screen information {e}'
text += '<br><b>Optional:</b><br>'
optional_modules = (
('numba', 'numba'),
('triangle', 'triangle'),
('napari_plugin_manager', 'napari-plugin-manager'),
('bermuda', 'bermuda'),
('PartSegCore_compiled_backend', 'PartSegCore'),
)
for module, name in optional_modules:
try:
text += f' - <b>{name}</b>: {version(module)}<br>'
except PackageNotFoundError:
text += f' - {name} not installed<br>'
try:
from napari.settings import get_settings
_async_setting = str(get_settings().experimental.async_)
_autoswap_buffers = str(get_settings().experimental.autoswap_buffers)
_triangulation_backend = str(
get_settings().experimental.triangulation_backend
)
_config_path = get_settings().config_path
except ValueError:
from napari.utils._appdirs import user_config_dir
_async_setting = str(os.getenv('NAPARI_ASYNC', 'False'))
_autoswap_buffers = str(os.getenv('NAPARI_AUTOSWAP', 'False'))
_triangulation_backend = str(
os.getenv('NAPARI_TRIANGULATION_BACKEND', 'Fastest available')
)
_config_path = os.getenv('NAPARI_CONFIG', user_config_dir())
text += '<br><b>Experimental Settings:</b><br>'
text += f' - Async: {_async_setting}<br>'
text += f' - Autoswap buffers: {_autoswap_buffers}<br>'
text += f' - Triangulation backend: {_triangulation_backend}<br>'
text += '<br><b>Settings path:</b><br>'
text += f' - {_config_path}<br>'
text += '<br><b>Launch command:</b><br>'
text += f' - {get_launch_command()}<br>'
text += '<br><b>Plugins:</b><br>'
text += get_plugin_list()
text += startup_script()
if not as_html:
text = (
text.replace('<br>', '\n').replace('<b>', '').replace('</b>', '')
)
return text
citation_text = (
'napari contributors (2019). napari: a '
'multi-dimensional image viewer for python. '
'doi:10.5281/zenodo.3555620'
)
