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Added support for python 2.7 (EOL ros distro) #50

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Added support for python 2.7 (EOL ros distro) #50

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33 changes: 28 additions & 5 deletions scripts/ntrip_ros.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@
import os
import sys
import json
import importlib
import sys

import rospy
from std_msgs.msg import Header
Expand All @@ -17,11 +17,34 @@
_RTCM_MSGS_NAME = "rtcm_msgs"
have_mavros_msgs = False
have_rtcm_msgs = False
if importlib.util.find_spec(_MAVROS_MSGS_NAME) is not None:
have_mavros_msgs = True

if sys.version_info[0] < 3:
# This works for python 2.xx (ROS melodic and backwards)
import imp

try:
imp.find_module(_MAVROS_MSGS_NAME)
have_mavros_msgs = True
except ImportError:
pass

try:
imp.find_module(_RTCM_MSGS_NAME)
have_rtcm_msgs = True
except ImportError:
pass
else:
# This only works for python 3.xx (ROS Noetic and ROS2)
import importlib

if importlib.util.find_spec(_MAVROS_MSGS_NAME) is not None:
have_mavros_msgs = True
if importlib.util.find_spec(_RTCM_MSGS_NAME) is not None:
have_rtcm_msgs = True

if have_mavros_msgs:
from mavros_msgs.msg import RTCM as mavros_msgs_RTCM
if importlib.util.find_spec(_RTCM_MSGS_NAME) is not None:
have_rtcm_msgs = True
if have_rtcm_msgs:
from rtcm_msgs.msg import Message as rtcm_msgs_RTCM

class NTRIPRos:
Expand Down