def _test_dir():
"Debug/test function to create DirectoryImporters from sys.path."
imputil.ImportManager().install()
path = sys.path[:]
path.reverse()
for d in path:
sys.path.insert(0, DirectoryImporter(d))
sys.path.insert(0, imputil.BuiltinImporter())
#
# Configure.
# ==========
importer = NetworkImporter()
if 'NETIMP_CACHEDIR' in os.environ:
importer.cachedir = os.environ['NETIMP_CACHEDIR']
if 'NETIMP_PATH' in os.environ:
importer.path = list(os.environ['NETIMP_PATH'].split())
importer.verbose = 'NETIMP_VERBOSE' in os.environ
# Install.
# ========
imputil.ImportManager().install()
sys.path.append(importer)
# Test.
# =====
def test():
# module: foo.py
import foo
assert foo.made_it == 'BLAM!!!!!!!!!!'
try: # most likely to fail
# extension: _foo.so
import _foo
def _test_revamp():
"Debug/test function for the revamped import system."
imputil.ImportManager().install()
sys.path.insert(0, PathImporter())
sys.path.insert(0, imputil.BuiltinImporter())
return (retvals[0], self.callback(retvals[1]), retvals[2])
return retvals
def get_code(self, parent, modname, fqname):
if parent:
# we are looking for a module inside of a specific package
return self.rewrite(_fs_import(parent.__pkgdir__, modname, fqname))
# scan sys.path, looking for the requested module
for dir in self.path:
if isinstance(dir, str):
result = _fs_import(dir, modname, fqname)
if result:
return self.rewrite(result)
# not found
return None
import_manager = imputil.ImportManager()
def install(callback):
"Install callback as a code-rewriting function for each imported module."
import_manager.install()
sys.path.insert(0, PathImporter(sys.path, callback))
def uninstall():
import_manager.uninstall()
