BST O! what a mess

[kevindawson]

I was extracting Date from e-mail headers, when I came across this:

import maya
email_date = 'Tue, 22 May 2018 16:37:09 +01:00 (BST)'
print(maya.parse(email_date).datetime())

Output:

(kevin) kevin@dual:~/git/oldMail/sandbox$ python sand-001.py 
Traceback (most recent call last):
  File "sand-001.py", line 8, in <module>
    print(maya.parse(email_date).datetime())
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/maya/core.py", line 766, in parse
    dt = pendulum.parse(str(string), **options)
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/pendulum/parser.py", line 29, in parse
    return _parse(text, **options)
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/pendulum/parser.py", line 56, in _parse
    tz=parsed.tzinfo or options.get("tz", UTC),
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/pendulum/__init__.py", line 111, in datetime
    tz = _safe_timezone(tz)
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/pendulum/__init__.py", line 82, in _safe_timezone
    elif obj.tzname(None) == "UTC":
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/dateutil/tz/tz.py", line 238, in tzname
    return self._tznames[self._isdst(dt)]
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/dateutil/tz/tz.py", line 291, in _isdst
    dstval = self._naive_is_dst(dt)
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/dateutil/tz/tz.py", line 259, in _naive_is_dst
    timestamp = _datetime_to_timestamp(dt)
  File "/home/kevin/.local/share/virtualenvs/kevin-QvQG5PMg/lib/python3.7/site-packages/dateutil/tz/tz.py", line 1814, in _datetime_to_timestamp
    return (dt.replace(tzinfo=None) - EPOCH).total_seconds()
AttributeError: 'NoneType' object has no attribute 'replace'

Issues:

• BST is not supported, but (GMT, CET, CEDT...) are

• There is no error handling for Time Zone Abbreviations