How to delete html file strings in a folder in bulk

# Just look at the idea that it can be solved like this with a regular expression.
import re

# Loads all file content. I haven't tested this part, but it'll probably work.
with open('Path/to/file', 'r') as content_file:
    content = content_file.read()

# Step 1. Remove all line changes.
content = re.sub(r"\n", "", content, 0, re.MULTILINE)

# Step 2. Change the line whenever </script> appears.
content = re.sub(r"<\/script>", "</script>\n", content, 0, re.MULTILINE)

# Step 3. You can now fit the pattern <script something> and that </script> for each line.
# Find it and send it all away.
content = re.sub(r"<script.*\/script>\n", "", content, 0, re.MULTILINE)

# Overwrite and you're done
with open('Path/to/file', 'w') as overwrite:
    overwrite.write(content)