Changing file extension in Python

Changing file extension in Python

You can change the file extension in Python by manipulating the string representing the file's name. Here's a simple example of how to change the file extension:

import os def change_file_extension(file_path, new_extension): # Get the base name of the file (without path) base_name = os.path.basename(file_path) # Split the base name into the name part and the old extension name_part, old_extension = os.path.splitext(base_name) # Create the new file name with the desired extension new_file_name = name_part + new_extension # Join the new file name with the original path to get the full new path new_file_path = os.path.join(os.path.dirname(file_path), new_file_name) return new_file_path # Example usage: file_path = "/path/to/your/file.txt" new_extension = ".csv" new_file_path = change_file_extension(file_path, new_extension) print("New File Path:", new_file_path)

In this code:

  • The change_file_extension function takes the original file path (file_path) and the new extension (including the dot, e.g., ".csv").

  • It uses os.path.basename() to extract the base name of the file without the path.

  • Then, it uses os.path.splitext() to split the base name into the name part and the old extension.

  • Next, it creates the new file name by appending the new extension to the name part.

  • Finally, it joins the new file name with the original path using os.path.join() to get the full new file path.

  • Example usage demonstrates how to change the file extension of a given file path.

Make sure to replace "/path/to/your/file.txt" with the actual file path and adjust the new_extension variable as needed.

Examples

  1. "Python change file extension example"

    Description: This query seeks a basic example of how to change the file extension of a file using Python.

    import os def change_file_extension(file_path, new_extension): base_name = os.path.splitext(file_path)[0] new_file_path = base_name + '.' + new_extension os.rename(file_path, new_file_path) return new_file_path # Example usage: old_file_path = 'example.txt' new_extension = 'csv' new_file_path = change_file_extension(old_file_path, new_extension) print(f"File extension changed. New file path: {new_file_path}")

  2. "Python script to rename file extension"

    Description: This query aims to find a Python script specifically designed to rename file extensions for multiple files within a directory.

    import os def rename_file_extension(directory, old_extension, new_extension): for filename in os.listdir(directory): if filename.endswith('.' + old_extension): base_name = os.path.splitext(filename)[0] new_filename = base_name + '.' + new_extension os.rename(os.path.join(directory, filename), os.path.join(directory, new_filename)) # Example usage: directory_path = '/path/to/directory' old_extension = 'txt' new_extension = 'csv' rename_file_extension(directory_path, old_extension, new_extension) print("File extensions changed successfully.")

  3. "Python code to change file extension recursively"

    Description: This query targets Python code that can recursively change file extensions within subdirectories.

    import os def rename_file_extension_recursively(root_dir, old_extension, new_extension): for root, dirs, files in os.walk(root_dir): for filename in files: if filename.endswith('.' + old_extension): base_name = os.path.splitext(filename)[0] new_filename = base_name + '.' + new_extension os.rename(os.path.join(root, filename), os.path.join(root, new_filename)) # Example usage: root_directory = '/path/to/root_directory' old_extension = 'txt' new_extension = 'csv' rename_file_extension_recursively(root_directory, old_extension, new_extension) print("File extensions changed recursively.")

  4. "Python script to convert file extensions"

    Description: This query is looking for a Python script that can convert one file extension to another.

    import os def convert_file_extension(file_path, old_extension, new_extension): if file_path.endswith('.' + old_extension): new_file_path = file_path.replace('.' + old_extension, '.' + new_extension) os.rename(file_path, new_file_path) return new_file_path else: print("File extension doesn't match.") return None # Example usage: file_path = 'example.txt' old_extension = 'txt' new_extension = 'csv' new_file_path = convert_file_extension(file_path, old_extension, new_extension) if new_file_path: print(f"File extension converted. New file path: {new_file_path}")

  5. "Python code to change file extension without rename"

    Description: This query is interested in Python code that changes file extensions without renaming the files.

    import os def change_file_extension_without_rename(file_path, new_extension): if os.path.exists(file_path): base_name = os.path.splitext(file_path)[0] new_file_path = base_name + '.' + new_extension return new_file_path else: print("File does not exist.") return None # Example usage: old_file_path = 'example.txt' new_extension = 'csv' new_file_path = change_file_extension_without_rename(old_file_path, new_extension) if new_file_path: print(f"File extension changed. New file path: {new_file_path}")

  6. "Python code to change file extension without losing data"

    Description: This query is looking for Python code that can change file extensions without losing any data.

    import shutil def change_file_extension_without_data_loss(old_path, new_extension): new_path = old_path[:old_path.rfind('.')] + '.' + new_extension shutil.copy2(old_path, new_path) return new_path # Example usage: old_file_path = 'example.txt' new_extension = 'csv' new_file_path = change_file_extension_without_data_loss(old_file_path, new_extension) print(f"File extension changed without data loss. New file path: {new_file_path}")

  7. "Python script to change file extension using regex"

    Description: This query is interested in a Python script that utilizes regular expressions to change file extensions.

    import re import os def change_file_extension_regex(file_path, new_extension): new_file_path = re.sub(r'\..*$', '.' + new_extension, file_path) os.rename(file_path, new_file_path) return new_file_path # Example usage: old_file_path = 'example.txt' new_extension = 'csv' new_file_path = change_file_extension_regex(old_file_path, new_extension) print(f"File extension changed using regex. New file path: {new_file_path}")

  8. "Python change file extension using pathlib"

    Description: This query is interested in using Python's pathlib module to change file extensions.

    from pathlib import Path def change_file_extension_pathlib(file_path, new_extension): path = Path(file_path) new_file_path = path.with_suffix('.' + new_extension) path.rename(new_file_path) return new_file_path # Example usage: old_file_path = 'example.txt' new_extension = 'csv' new_file_path = change_file_extension_pathlib(old_file_path, new_extension) print(f"File extension changed using pathlib. New file path: {new_file_path}")

  9. "Python script to change file extension and move to new directory"

    Description: This query aims to find a Python script that not only changes file extensions but also moves the files to a new directory.

    import os import shutil def move_and_change_extension(old_path, new_extension, new_directory): base_name = os.path.basename(old_path) new_path = os.path.join(new_directory, base_name[:base_name.rfind('.')] + '.' + new_extension) shutil.move(old_path, new_path) return new_path # Example usage: old_file_path = 'example.txt' new_extension = 'csv' new_directory = '/path/to/new_directory' new_file_path = move_and_change_extension(old_file_path, new_extension, new_directory) print(f"File moved and extension changed. New file path: {new_file_path}")

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