Scapy-htttp TypeError: a bytes-like object is required, not 'str'

使用环境

python3.7
scapy2.4.3
scapy-http1.8.2

问题

引入scapy-http库后，保存报文保错：

Traceback (most recent call last):
....
File "/opt/lib/scapy_http/http.py", line 179, in self_build
return _self_build(self, field_pos_list)
File "/opt/lib/scapy_http/http.py", line 101, in _self_build
val = _get_field_value(obj, f.name)
File "/opt/lib/scapy_http/http.py", line 74, in _get_field_value
headers = _parse_headers(val)
File "/opt/lib/scapy_http/http.py", line 18, in _parse_headers
headers = s.split("\r\n")
TypeError: a bytes-like object is required, not 'str'

出现问题的原因是scapy-http是基于python2的

解决方法

修改http.py

第18行：
    headers = s.split("\r\n")
    修改为：
    try:
        headers = s.split("\r\n")
    except TypeError as err:
        headers = s.split(b"\r\n")
第113行：
    p = f.addfield(obj, p, val + separator)
    修改为：
    try:
        p = f.addfield(obj, p, val + separator)
    except TypeError as err:
        p = f.addfield(obj, p, str(val) + str(separator))

参考：https://github.com/invernizzi/scapy-http/issues/26