Deprecation warning due to invalid escape sequences

[tirkarthi]

Problem

Deprecation warnings are raised due to invalid escape sequences. This can be fixed by using raw strings or escaping the literals. pyupgrade also helps in automatic conversion : https://github.com/asottile/pyupgrade/

Procedure to reproduce the problem

find . -iname '*.py' | grep -Ev 'test.py' | xargs -P4 -I{} python3.8 -Wall -m py_compile {}
./django_redshift_backend/base.py:152: DeprecationWarning: invalid escape sequence \(
  m = re.match('varchar\((\d+?)\)', definition)
./django_redshift_backend/base.py:155: DeprecationWarning: invalid escape sequence \(
  'varchar\((\d+?)\)',

Environment info

• OS: <Unix/Linux/Mac/Win/other with version>
• Python version: 3.8
• Django version:
• Django-Redshift-Backend version:

[browniebroke]

I think this issue can be closed, fix was merged in #72

[shimizukawa]

I think too.

[shimizukawa]

Now I've released 2.0.0. Thanks for your contribution!
https://pypi.org/project/django-redshift-backend/2.0.0/