Use endswith with multiple extensions in python

Use endswith with multiple extensions in python

You can use a list comprehension and the str.endswith() method to check if a string ends with multiple extensions in Python. Here's an example:

file_extensions = ['.txt', '.csv', '.log'] file_name = 'file.txt' if any(file_name.endswith(ext) for ext in file_extensions): print(f"The file '{file_name}' has one of the specified extensions.") else: print(f"The file '{file_name}' doesn't have any of the specified extensions.")

In this example, the any() function is used with a list comprehension to check if the file_name ends with any of the specified extensions in the file_extensions list. If at least one of the extensions matches, the code prints that the file has one of the specified extensions; otherwise, it prints that the file doesn't have any of the specified extensions.

You can adjust the file_extensions list to include the extensions you want to check for.

Examples

  1. "How to use endswith for multiple file extensions in Python?"

    • The endswith() method allows you to check if a string ends with a specific suffix or a tuple of suffixes. This example checks for multiple file extensions.
    # Check if a filename ends with specific extensions filename = "example.docx" extensions = (".docx", ".pdf", ".txt") if filename.endswith(extensions): print("File has a valid extension.") # Output: File has a valid extension.

  2. "Using endswith to filter files by multiple extensions in Python?"

    • You can use endswith() to filter a list of files by multiple extensions. This is useful when you're working with various file types.
    files = ["report.pdf", "image.png", "document.docx", "notes.txt"] valid_extensions = (".pdf", ".docx", ".txt") # Get files with valid extensions filtered_files = [f for f in files if f.endswith(valid_extensions)] print(filtered_files) # Output: ['report.pdf', 'document.docx', 'notes.txt']

  3. "Using endswith to validate a file extension in Python?"

    • This example demonstrates how to validate if a given filename has a valid extension using endswith().
    filename = "data.csv" valid_extensions = (".csv", ".tsv", ".txt") if not filename.endswith(valid_extensions): raise ValueError("Invalid file extension.") # No error since extension is valid

  4. "Checking if a URL ends with specific extensions using endswith in Python?"

    • endswith() can also be used to check if a URL ends with specific file extensions.
    url = "https://example.com/image.jpg" image_extensions = (".jpg", ".png", ".gif") if url.endswith(image_extensions): print("URL points to an image.") # Output: URL points to an image.

  5. "How to use endswith to filter file paths by multiple extensions in Python?"

    • If you're working with file paths, endswith() can help you filter them based on specific extensions.
    from pathlib import Path file_paths = [ Path("/home/user/file1.txt"), Path("/home/user/file2.pdf"), Path("/home/user/file3.docx"), Path("/home/user/file4.jpg"), ] text_extensions = (".txt", ".docx") # Filter file paths by valid extensions text_files = [fp for fp in file_paths if fp.name.endswith(text_extensions)] print(text_files) # Output: [PosixPath('/home/user/file1.txt'), PosixPath('/home/user/file3.docx')]

  6. "How to use endswith with non-case-sensitive extensions in Python?"

    • To handle case-insensitive file extensions, you can convert strings to lowercase before using endswith().
    filename = "document.DOCX" extensions = (".docx", ".pdf", ".txt") if filename.lower().endswith(extensions): print("Case-insensitive match found.") # Output: Case-insensitive match found.

  7. "Using endswith to validate input based on allowed extensions in Python?"

    • This example demonstrates using endswith() to validate user input based on allowed extensions.
    user_input = "my_video.mp4" allowed_extensions = (".mp4", ".avi", ".mov") if not user_input.endswith(allowed_extensions): raise ValueError("Invalid video file extension.") else: print("Valid video file.") # Output: Valid video file.

  8. "Using endswith with multiple extensions in command-line applications?"

    • This example demonstrates how to use endswith() in a command-line script to process files with specific extensions.
    # Save this code as process_files.py and run from the command line import sys valid_extensions = (".txt", ".md", ".csv") for filename in sys.argv[1:]: if filename.endswith(valid_extensions): print(f"Processing file: {filename}") else: print(f"Skipping file: {filename}")

  9. "Using endswith to process files with multiple extensions in a directory in Python?"

    • This example shows how to use endswith() to process files in a directory that match specific extensions.
    # First, create some sample files in the current directory touch file1.txt file2.docx file3.pdf file4.jpg 
    import os valid_extensions = (".txt", ".docx", ".pdf") current_directory = "." # Get all files in the current directory files = os.listdir(current_directory) # Process files with valid extensions valid_files = [f for f in files if f.endswith(valid_extensions)] for f in valid_files: print(f"Processing: {f}") # Output example: Processing: file1.txt, Processing: file2.docx, Processing: file3.pdf

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