Read Peak PCAN Traces in Python

pcan_trace.py

import binascii
import re

def read_pcan_trace(trace_path: str):
    with open(trace_path, "r") as candump:
        c = 0
    
        HEADER_LINES_COUNT = 14
    
        regex = re.compile(
            r"\s*(?P<index>\d+)\)\s+(?P<time>(?:\d+)\.(?:\d+))\s+Rx\s+(?P<can_id>[0-9a-zA-Z]+)\s+(?P<datalen>\d+)\s+(?P<data>(?:[0-9a-zA-Z]{2})(?:\s+[0-9a-zA-Z]{2}){0,7})")
    
        data = []
        
        for line in candump.readlines()[HEADER_LINES_COUNT:]:

            if line.startswith(";"):
                # comment
                continue
            
            res = regex.match(line)
    
            if res == None:
                print("Failed to parse {}", line)
                continue
    
            data.append((
                float(res.group("time")),
                int(res.group("can_id"), base=16),
                binascii.unhexlify(res.group("data").replace(" ",""))
            ))
    return data