The os module provides functions to interact with the operating system, including file existence checks.

1. Using os.path.exists():
   • Returns True if the file exists, False otherwise.
2. Code Example:
   
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   import os
   
   file_path = "example.txt"
   if os.path.exists(file_path):
       print("File exists.")
   else:
       print("File does not exist.")
   

   
   
3. Using os.path.isfile():
   • Ensures that the path is indeed a file (and not a directory).
4. Alternative Code:
   
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   import os
   
   file_path = "example.txt"
   if os.path.isfile(file_path):
       print("File exists.")
   else:
       print("File does not exist.")
   

   
   
5. Explanation:
   • os.path.exists() checks for any type of file (including directories).
   • os.path.isfile() specifically checks for files.