This Python script saves a file with the specified filename to the current working directory using the os module. The current working directory is determined by calling os.path.dirname(__file__).

save_in_file_dir.py

import os

# Get the current working directory
current_dir = os.path.dirname(__file__)

# Create a file path that includes the current working directory
file_path = os.path.join(current_dir, "filename.txt")

# Save the file with the file path
with open(file_path, "w") as file:
    file.write("Hello, world!")