Files

49 lines
1.4 KiB
Python

import sys
SHARED_CAFFE_RESOLVER = None
class CaffeResolver(object):
def __init__(self):
self.import_caffe()
def import_caffe(self):
self.caffe = None
try:
# Try to import PyCaffe first
import caffe
self.caffe = caffe
except ImportError:
# Fall back to the protobuf implementation
from . import caffepb
self.caffepb = caffepb
show_fallback_warning()
if self.caffe:
# Use the protobuf code from the imported distribution.
# This way, Caffe variants with custom layers will work.
self.caffepb = self.caffe.proto.caffe_pb2
self.NetParameter = self.caffepb.NetParameter
def has_pycaffe(self):
return self.caffe is not None
def get_caffe_resolver():
global SHARED_CAFFE_RESOLVER
if SHARED_CAFFE_RESOLVER is None:
SHARED_CAFFE_RESOLVER = CaffeResolver()
return SHARED_CAFFE_RESOLVER
def has_pycaffe():
return get_caffe_resolver().has_pycaffe()
def show_fallback_warning():
msg = '''
------------------------------------------------------------
WARNING: PyCaffe not found!
Falling back to a pure protocol buffer implementation.
* Conversions will be drastically slower.
* This backend is UNTESTED!
------------------------------------------------------------
'''
sys.stderr.write(msg)