Open file by filename wildcard in python

Open file by filename wildcard in python

To open files by filename wildcard (i.e., using wildcard characters like * and ? to match multiple filenames) in Python, you can use the glob module. The glob module provides a function called glob that allows you to search for files that match a specified pattern. Here's how you can use it:

import glob # Define a wildcard pattern to match filenames wildcard_pattern = '/path/to/files/*.txt' # Replace with your desired pattern # Use the glob function to find matching files matching_files = glob.glob(wildcard_pattern) # Loop through the matching files and open them for filename in matching_files: with open(filename, 'r') as file: # Process the file content here (e.g., read lines, perform operations) content = file.read() print(f"File {filename} content:\n{content}")

In this example:

  1. Import the glob module.

  2. Define a wildcard_pattern variable with the pattern that you want to use to match filenames. You can use * to match any sequence of characters and ? to match any single character. Replace /path/to/files/*.txt with your specific pattern and directory.

  3. Use the glob.glob(wildcard_pattern) function to find files that match the specified pattern. This function returns a list of matching filenames.

  4. Loop through the matching filenames and open each file using the open() function, specifying the desired file mode ('r' for reading in this example).

  5. Inside the loop, you can process the content of each opened file as needed.

Make sure to replace /path/to/files/*.txt with the actual directory and pattern you want to use. This code will open and process all files that match the specified wildcard pattern.

Examples

  1. How to open files by filename wildcard in Python?

    • Description: This query seeks a Python solution to open multiple files matching a filename wildcard pattern.
    • Code:
      import glob def open_files_by_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Do something with the file pass # Example usage: pattern = "*.txt" # Open all text files in the current directory open_files_by_wildcard(pattern)

  2. Python code to open files using filename wildcard?

    • Description: This query aims for Python code to open files based on a filename wildcard pattern.
    • Code:
      import glob def open_files_with_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Process each file pass # Example usage: pattern = "prefix*.log" # Open all log files starting with 'prefix' open_files_with_wildcard(pattern)

  3. How to use wildcard to open files in Python?

    • Description: This query is about utilizing a wildcard to open files in Python, indicating a need for code examples.
    • Code:
      import glob def open_files_with_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Process each file pass # Example usage: pattern = "data*.csv" # Open all CSV files starting with 'data' open_files_with_wildcard(pattern)

  4. Python script to open files matching wildcard?

    • Description: This query looks for a Python script to open files matching a specified wildcard pattern.
    • Code:
      import glob def open_files_by_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Process each file pass # Example usage: pattern = "*.jpg" # Open all JPEG files in the current directory open_files_by_wildcard(pattern)

  5. How to open files with filename wildcard in Python 3?

    • Description: This query is specifically looking for Python 3 code to open files based on a filename wildcard pattern.
    • Code:
      import glob def open_files_by_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Process each file pass # Example usage: pattern = "prefix_*.txt" # Open all text files with 'prefix_' in the name open_files_by_wildcard(pattern)

  6. Python code to read files with wildcard filename?

    • Description: This query is about Python code to read files using a wildcard filename pattern.
    • Code:
      import glob def read_files_with_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Read each file contents = f.read() # Do something with contents pass # Example usage: pattern = "data*.txt" # Read all text files starting with 'data' read_files_with_wildcard(pattern)

  7. How to open multiple files with filename wildcard in Python?

    • Description: This query is interested in opening multiple files based on a filename wildcard pattern in Python.
    • Code:
      import glob def open_multiple_files_with_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Process each file pass # Example usage: pattern = "*.csv" # Open all CSV files in the current directory open_multiple_files_with_wildcard(pattern)

  8. Python code to handle wildcard filename and open files?

    • Description: This query is about Python code that can handle wildcard filenames and open the matching files.
    • Code:
      import glob def handle_wildcard_filenames(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Process each file pass # Example usage: pattern = "prefix*.json" # Open all JSON files starting with 'prefix' handle_wildcard_filenames(pattern)

  9. How to iterate through files with wildcard filename in Python?

    • Description: This query is about iterating through files using a wildcard filename pattern in Python.
    • Code:
      import glob def iterate_files_with_wildcard(pattern): file_list = glob.glob(pattern) for file in file_list: with open(file, 'r') as f: # Iterate through each file pass # Example usage: pattern = "data*.csv" # Iterate through all CSV files starting with 'data' iterate_files_with_wildcard(pattern)

  10. Python code to open files matching wildcard pattern in directory?

    • Description: This query is about finding Python code to open files that match a wildcard pattern within a directory.
    • Code:
      import glob def open_files_in_directory(pattern, directory): file_list = glob.glob(directory + '/' + pattern) for file in file_list: with open(file, 'r') as f: # Process each file pass # Example usage: directory = "/path/to/directory" pattern = "*.txt" # Open all text files in the directory open_files_in_directory(pattern, directory)

More Tags

letter back-button office365-restapi snowflake-cloud-data-platform daterangepicker generator big-o yuv hashset liquid

More Python Questions

More Auto Calculators

More Date and Time Calculators

More Bio laboratory Calculators

More Entertainment Anecdotes Calculators