blob: a6f710ef3eacd11c79f2606f7c0f6b3cd0b8eef8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
# This file is part of cloud-init. See LICENSE file for license information.
try:
from serial import Serial
except ImportError:
# For older versions of python (ie 2.6) pyserial may not exist and/or
# work and/or be installed, so make a dummy/fake serial that blows up
# when used...
class Serial(object):
def __init__(self, *args, **kwargs):
pass
@staticmethod
def isOpen():
return False
@staticmethod
def write(data):
raise IOError(
"Unable to perform serial `write` operation,"
" pyserial not installed."
)
@staticmethod
def readline():
raise IOError(
"Unable to perform serial `readline` operation,"
" pyserial not installed."
)
@staticmethod
def flush():
raise IOError(
"Unable to perform serial `flush` operation,"
" pyserial not installed."
)
@staticmethod
def read(size=1):
raise IOError(
"Unable to perform serial `read` operation,"
" pyserial not installed."
)
# vi: ts=4 expandtab
|
