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#!/usr/bin/env python
"""
Example of a progress bar dialog.
"""
import os
import time
from prompt_toolkit.shortcuts import progress_dialog
def worker(set_percentage, log_text):
"""
This worker function is called by `progress_dialog`. It will run in a
background thread.
The `set_percentage` function can be used to update the progress bar, while
the `log_text` function can be used to log text in the logging window.
"""
percentage = 0
for dirpath, dirnames, filenames in os.walk("../.."):
for f in filenames:
log_text(f"{dirpath} / {f}\n")
set_percentage(percentage + 1)
percentage += 2
time.sleep(0.1)
if percentage == 100:
break
if percentage == 100:
break
# Show 100% for a second, before quitting.
set_percentage(100)
time.sleep(1)
def main():
progress_dialog(
title="Progress dialog example",
text="As an examples, we walk through the filesystem and print "
"all directories",
run_callback=worker,
).run()
if __name__ == "__main__":
main()
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