Python strptime cannot understand timezone offset - python-3.x

Question

I have a very simple timestamp I need to parse:
10/2/2020 3:19:42 PM (UTC-7)
But using python 3.6, when I try to parse this, I get the following:
>>> datetime.strptime('10/2/2020 3:19:42 PM (UTC-7)', '%m/%d/%Y %I:%M:%S %p (%Z%z)')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "_strptime.py", line 565, in _strptime_datetime
tt, fraction = _strptime(data_string, format)
File "_strptime.py", line 362, in _strptime
(data_string, format))
ValueError: time data '10/2/2020 3:19:42 PM (UTC-7)' does not match format '%m/%d/%Y %I:%M:%S %p (%Z%z)'
I have tried dateutil.parser, as well as several variations of the format string. The piece that's tripping up strptime is the (UTC-7) portion.
Is the string format wrong? How can I parse this string and receive the timezone information as well? Any help is appreciated.
Edit: If the string is (UTC-0700) then the parsing works. But I cannot control how the timestamps are being formatted, is there a way to parse them in their current format (UTC-7)?

Answer 1

Ah, it turned out to be quite silly:
>>> import dateutil
>>> dateutil.parser.parse(dt, fuzzy=True)
datetime.datetime(2020, 10, 2, 15, 19, 42, tzinfo=tzoffset(None, 25200))
Should have used fuzzy logic before. :-)
EDIT: The above does NOT work (thanks to #wim for pointing it out) - Fuzzy flag is ignoring the sign of the offset string.
Here is code that works:
>>> from datetime import datetime
>>> import re
>>> dt = '10/2/2020 3:19:42 PM (UTC-7)'
>>> sign, offset = re.search('\(UTC([+-])(\d+)\)', dt).groups()
>>> offset = f"0{offset}00" if len(offset) == 1 else f"{offset}00"
>>> dt = re.sub(r'\(UTC.\d+\)', f'(UTC{sign}{offset})', dt)
>>> datetime.strptime(dt, '%m/%d/%Y %I:%M:%S %p (%Z%z)')
datetime.datetime(2020, 10, 2, 15, 19, 42, tzinfo=datetime.timezone(datetime.timedelta(-1, 61200), 'UTC'))