centopy 0.3.0

Python package for managing file creation and loading

centopy

API for managing files in a specified folder.

Installation

$ pip install centopy

Usage

FilesManager

To use the FilesManager class in your Python script or project, import it as follows:

from centopy import FilesManager

Creating a FilesManager Instance

To create an instance of the FilesManager class, provide the folder path where you want to manage the files:

folder_path = "/path/to/folder"
file_manager = FilesManager(folder_path)

Saving and Loading Files

You can save and load file contents using the save_file and load_file methods, respectively:

file_name = "example.txt"
file_contents = "Hello, world!"

# Save file contents to the specified file
file_manager.save_file(file_name, file_contents)

# Load file contents from the specified file
loaded_contents = file_manager.load_file(file_name)

Reading and Writing Files

You can also directly read from and write content to files using the read_file and write_file methods:

file_name = "example.txt"
file_contents = "Hello, world!"

# Write contents to the specified file
file_manager.write_file(file_name, file_contents)

# Read contents from the specified file
read_contents = file_manager.read_file(file_name)

Handling File States

The FilesManager class keeps track of the state of each file that has been saved or loaded. You can check the state of a file using the get_file_state method:

file_name = "example.txt"
state = file_manager.get_file_state(file_name)
print(f"File state for '{file_name}': {state}")

Note: The state is represented as a list of events. For example, if a file is saved and loaded, the state attribute (file_manager.file_state[file_name]) will be ["saved", "loaded"].

Handling Exceptions

When loading a file, if the specified file is not found, the load_file method returns None and logs an error message using the logging module. To handle such cases, you can check if the loaded contents are None:

file_name = "nonexistent_file.txt"
loaded_contents = file_manager.load_file(file_name)

if loaded_contents is None:
    print(f"The file '{file_name}' was not found.")

Compressor:

The class centopy.Compressor is an api to the zipfile.ZipFile context manager. You can use a custom extension when instantiating.

Writing and appending files

archive = centopy.Compressor('file', extension='customzip', wdir='data')

An object centopy.Compressor has a attribute as an instance of centopy.FilesManager.

print(archive.manager.list_files())

['file.customzip', 'data.bin', 'hello.txt']

content = 'Hello, centopy!'
archive.write('hello.txt', content=content)

# list files inside archive
print(archive.namelist())

['hello.txt']

Binary Data Compression

# Create a Compressor object
compressor = Compressor("bin_archive")

# Write binary content to a new file and add it to the archive
binary_data = b'\x00\x01\x02\x03\x04'
compressor.writeb("binary_data.bin", binary_data)

# Append binary content to an existing file in the archive
new_binary_data = b'\x05\x06\x07'
compressor.appendb("binary_data.bin", new_binary_data)

# Read the binary content of a file from the archive
binary_content = compressor.read("binary_data.bin", as_text=False)

print("Binary content:", binary_content)

Contributing

Interested in contributing? Check out the contributing guidelines. Please note that this project is released with a Code of Conduct. By contributing to this project, you agree to abide by its terms.

License

centopy was created by Vagner Bessa. Vagner Bessa retains all rights to the source and it may not be reproduced, distributed, or used to create derivative works.

Credits

centopy was created with cookiecutter and the py-pkgs-cookiecutter template.