No data in response fix

2021-06-06 11:58:32 +02:00 · 2021-06-06 11:58:32 +02:00 · 63b378d483
commit 63b378d483
parent 35e0bf9045
1 changed files with 3 additions and 0 deletions
--- a/pyren/mod_elm.py
+++ b/pyren/mod_elm.py
@ -1503,6 +1503,9 @@ class ELM:
        nBytes = 0  # number bytes in response
        nFrames = 0  # numer frames in response

+        if len (responses) == 0:  # no data in response
+            return ""
+
        if responses[0][:1] == '0':  # single frame (sf)
            nBytes = int(responses[0][1:2], 16)
            nFrames = 1