diff options
| -rw-r--r-- | glucometerutils/support/freestyle.py | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/glucometerutils/support/freestyle.py b/glucometerutils/support/freestyle.py index 9857086..307cf64 100644 --- a/glucometerutils/support/freestyle.py +++ b/glucometerutils/support/freestyle.py @@ -12,6 +12,7 @@ __license__ = 'MIT' import csv import datetime +import os.path import re import struct @@ -68,6 +69,9 @@ class FreeStyleHidDevice(object): TEXT_REPLY_CMD = 0x60 def __init__(self, device): + if not os.path.exists(device): + raise exceptions.ConnectionFailed( + message='Path %s does not exist.' % device) self.handle_ = open(device, 'w+b') def connect(self): |