def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
python类find_module()的实例源码
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def _check_if_pyc(fname):
"""Return True if the extension is .pyc, False if .py
and None if otherwise"""
from imp import find_module
from os.path import realpath, dirname, basename, splitext
# Normalize the file-path for the find_module()
filepath = realpath(fname)
dirpath = dirname(filepath)
module_name = splitext(basename(filepath))[0]
# Validate and fetch
try:
fileobj, fullpath, (_, _, pytype) = find_module(module_name, [dirpath])
except ImportError:
raise IOError("Cannot find config file. "
"Path maybe incorrect! : {0}".format(filepath))
return pytype, fileobj, fullpath
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix,mode,kind) = info = imp.find_module(part, paths)
if kind==PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts,module))
return info
def get_visualizer_module(name):
# try to import the specified visualization module:
visualizer_path = os.path.join(options.cfg.base_path, "visualizer")
try:
find = imp.find_module(name, [visualizer_path])
module = imp.load_module(name, *find)
return module
except Exception as e:
print(e)
msg = "<code style='color: darkred'>{type}: {code}</code>".format(
type=type(e).__name__, code=sys.exc_info()[1])
logger.error(msg)
QtWidgets.QMessageBox.critical(
None, "Visualization error – Coquery",
VisualizationModuleError(name, msg).error_message)
return None
def find_module(self, fullname, path=None):
logger.debug('Running find_module: {0}...'.format(fullname))
if '.' in fullname:
parent, child = fullname.rsplit('.', 1)
if path is None:
loader = self.find_module(parent, path)
mod = loader.load_module(parent)
path = mod.__path__
fullname = child
# Perhaps we should try using the new importlib functionality in Python
# 3.3: something like this?
# thing = importlib.machinery.PathFinder.find_module(fullname, path)
try:
self.found = imp.find_module(fullname, path)
except Exception as e:
logger.debug('Py2Fixer could not find {0}')
logger.debug('Exception was: {0})'.format(fullname, e))
return None
self.kind = self.found[-1][-1]
if self.kind == imp.PKG_DIRECTORY:
self.pathname = os.path.join(self.found[1], '__init__.py')
elif self.kind == imp.PY_SOURCE:
self.pathname = self.found[1]
return self
def _find_and_load_module(self, name, path=None):
"""
Finds and loads it. But if there's a . in the name, handles it
properly.
"""
bits = name.split('.')
while len(bits) > 1:
# Treat the first bit as a package
packagename = bits.pop(0)
package = self._find_and_load_module(packagename, path)
try:
path = package.__path__
except AttributeError:
# This could be e.g. moves.
flog.debug('Package {0} has no __path__.'.format(package))
if name in sys.modules:
return sys.modules[name]
flog.debug('What to do here?')
name = bits[0]
module_info = imp.find_module(name, path)
return imp.load_module(name, *module_info)
def import_module(name):
name = os.path.realpath(name)
thepath = os.path.dirname(name)
name = os.path.basename(name)
if name.endswith(".py"):
name = name[:-3]
f,path,desc = imp.find_module(name,[thepath])
try:
return imp.load_module(name, f, path, desc)
finally:
if f:
f.close()
#### INTERNAL/EXTERNAL FILE EMBEDDING ####
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def test_examples():
examples_pat = os.path.join(os.path.abspath(os.path.dirname(__file__)),
'../../examples/*/*.py')
# Filter out __init__.py
examples = [f for f in glob.glob(examples_pat)
if not any([x in f for x in ['__init__.py',
'molecular']])]
for e in examples:
example_dir = os.path.dirname(e)
sys.path.insert(0, example_dir)
(module_name, _) = os.path.splitext(os.path.basename(e))
(module_file, module_path, desc) = \
imp.find_module(module_name, [example_dir])
m = imp.load_module(module_name, module_file, module_path, desc)
if hasattr(m, 'main'):
m.main(debug=False)
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix,mode,kind) = info = imp.find_module(part, paths)
if kind==PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts,module))
return info
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def load_plugins(logger, plugins, pluginpath):
def load_plugin(name):
logger.debug('Loading plugin %s' % name)
fp, pathname, description = imp.find_module(name, [pluginpath])
try:
return imp.load_module(name, fp, pathname, description)
finally:
if fp:
fp.close()
logger.debug('Loading plugins from %s...' % pluginpath)
expanded = (glob.glob(os.path.join(pluginpath, '*' + ext))
for ext in python_extensions)
files = itertools.chain.from_iterable(expanded)
names = set(os.path.splitext(os.path.basename(fn))[0] for fn in files)
for name in names:
if name != '__init__':
plugin = load_plugin(name)
if hasattr(plugin, 'plugin_init'):
obj = plugin.plugin_init(plugins)
plugins.append(obj or plugin)
else:
plugins.append(plugin)
def load(modname):
""" Loads all the modules that are named 'modname' from all the installed applications. """
def _get_module(app, modname):
# Find out the app's __path__
try:
app_path = import_module(app).__path__
except AttributeError: # pragma: no cover
return
# Use imp.find_module to find the app's modname.py
try:
imp.find_module(modname, app_path)
except ImportError: # pragma: no cover
return
# Import the app's module file
import_module('{}.{}'.format(app, modname))
for app in settings.INSTALLED_APPS:
_get_module(app, modname)
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def find_module(module, paths=None):
"""Just like 'imp.find_module()', but with package support"""
parts = module.split('.')
while parts:
part = parts.pop(0)
f, path, (suffix, mode, kind) = info = imp.find_module(part, paths)
if kind == PKG_DIRECTORY:
parts = parts or ['__init__']
paths = [path]
elif parts:
raise ImportError("Can't find %r in %s" % (parts, module))
return info
def get_version(self, paths=None, default="unknown"):
"""Get version number of installed module, 'None', or 'default'
Search 'paths' for module. If not found, return 'None'. If found,
return the extracted version attribute, or 'default' if no version
attribute was specified, or the value cannot be determined without
importing the module. The version is formatted according to the
requirement's version format (if any), unless it is 'None' or the
supplied 'default'.
"""
if self.attribute is None:
try:
f, p, i = find_module(self.module, paths)
if f:
f.close()
return default
except ImportError:
return None
v = get_module_constant(self.module, self.attribute, default, paths)
if v is not None and v is not default and self.format is not None:
return self.format(v)
return v
