When running OneTrainer, several SyntaxWarnings are raised because of invalid escape sequences in the DropTags.py module. These warnings indicate that certain escape sequences (e.g., \{, \), and \() are not properly formatted in Python string literals. This may lead to unintended behavior in regex processing.

Steps to Reproduce:

1. Start OneTrainer

2. Observe the following warnings in the console output:

   /home/sm/Applications/OneTrainer/venv/src/mgds/src/mgds/pipelineModules/DropTags.py:75: SyntaxWarning: invalid escape sequence '\{'
     regex_spchars = set(".^$*+?!\{\}\[\]|()\\")
   /home/sm/Applications/OneTrainer/venv/src/mgds/src/mgds/pipelineModules/DropTags.py:78: SyntaxWarning: invalid escape sequence '\)'
     c = c.replace("\)", "\\\\\)")
   /home/sm/Applications/OneTrainer/venv/src/mgds/src/mgds/pipelineModules/DropTags.py:79: SyntaxWarning: invalid escape sequence '\('
     c = c.replace("\(", "\\\\\(")   #hopefully fix issues caused by "\(\)" syntax without affecting other regex
   

Expected Behavior:

• The application should run without any SyntaxWarnings.
• Regex special characters should be correctly escaped so that regex operations perform as expected without any warnings.

Environment:

• OS: Ubuntu Plucky Puffin (development branch)
• Python: 3.12