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Diffstat (limited to 'glucometerutils/support/serial.py')
| -rw-r--r-- | glucometerutils/support/serial.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/glucometerutils/support/serial.py b/glucometerutils/support/serial.py index 9d7694d..c46d819 100644 --- a/glucometerutils/support/serial.py +++ b/glucometerutils/support/serial.py @@ -10,7 +10,7 @@ __license__ = 'MIT' import logging try: - from typing import Text + from typing import Optional, Text except: pass @@ -51,6 +51,7 @@ class SerialDevice(object): TIMEOUT = 1 # type: float def __init__(self, device): + # type: (Optional[Text]) -> None assert self.BAUDRATE is not None if not device and self.DEFAULT_CABLE_ID: |