Watchdog python file watcher
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watchdog is a python library that can be used to monitor filesystem events such as file creations, deletions, and modifications. it is commonly used for tasks like watching directories for changes and triggering actions based on those changes.
here is a step-by-step tutorial on how to use watchdog to monitor a directory for file changes and log the events:
step 1: install watchdog
you can install watchdog using pip:
step 2: create a python script to monitor a directory
create a python script, for example, `file_watcher.py`, and include the following code:
in this script:
we define a custom event handler `myhandler` that inherits from `filesystemeventhandler`.
we override the `on_modified` method to handle the `modified` event, and print a message when a file is modified.
we set the directory to monitor (`path`) and create an observer to watch for filesystem events.
we start the observer and handle keyboard interrupt to stop the observer.
step 3: run the script
save the script and run it in your terminal:
step 4: test the file watcher
make changes to files in the monitored directory, such as creating, modifying, or deleting files, and observe the output in the terminal.
watchdog provides a flexible and powerful way to monitor filesystem events in python applications. you can extend this example to perform various actions based on different types of filesystem events.
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