def from_file(cls, filepath, **kwargs):
try: # jython
from com.healthmarketscience.jackcess import Database
from java.io import File
except ImportError: # JPype
from jpype import startJVM, getDefaultJVMPath, JPackage, java
startJVM(getDefaultJVMPath())
com = JPackage('com')
Database = com.healthmarketscience.jackcess.Database
File = java.io.File
return cls(Database.open(File(filepath), True), # True = read-only
**kwargs)