module from BLOB
Fredrik Lundh
fredrik at pythonware.com
Mon Feb 4 10:56:17 EST 2002
marcin andrzejewski wrote:
> is it possible to import module directly from database BLOB/CLOB field ?
something like this could work:
import imp, marshal
from my_database_api import fetch_blob_from_database
def import_from_blob(name):
# fetch code object
code = marshal.loads(fetch_blob_from_database(name))
# create a new module object
module = imp.new_module(name)
# execute the code in the module's namespace
exec code in vars(module)
return module
mymod = import_from_blob("mymod")
to create the blobs, do something like:
module = "mymod"
text = open(module + ".py").read()
code = compile(text, module + ".py", "exec")
data = marshal.dumps(code)
store_blob_in_database(module, data)
for details, see the library reference.
hope this helps!
</F>
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