lowbar 1.1.0

The simplest no-nonsense loading bar for python.

lowbar

The simplest no-nonsense loading bar for python.

demo.py

# All the sleep calls would be tasks to
# complete in a real program


import lowbar, time, random


bar = lowbar.LowBar()


completion = 0


for i in range(10):
    time.sleep(random.random())
    bar.update_smooth(completion)
    bar.log(f"Task {i+1} completed")
    completion += 10
bar.clear()


print("\nRunning checks...")
bar.update(0)
time.sleep(1)
bar.update_smooth(10)
time.sleep(2)
bar.update_smooth(40)
time.sleep(2)
bar.update_smooth(100)
bar.clear()
print("Tasks complete!")

Installation

Install the latest stable release:

pip install lowbar

Or build the development version:

git clone https://github.com/AnnikaV9/lowbar.git
cd lowbar
pip install build hatchling
python3 -m build -w
pip install dist/lowbar-*-py3-none-any.whl

Usage

Once you have lowbar installed, you can import it like any other module:

import lowbar

And initialize the bar:

bar = lowbar.LowBar()

To make the bar visible, simple update the completion percentage:

bar.update(0)

We start with 0 since our program hasn't completed anything yet.

After completing some tasks, we can increase the bar's completion percentage:

bar.update(20)

The above function will immediately move the bar to 20%. To use a more smoother but slower animation:

bar.update_smooth(40)

Using print() or other similar functions will push the bar up, which doesn't look nice. To log messages without affecting the bar:

bar.log("Hello World!")

And finally, to clear the bar completely:

bar.clear()

Here's an example usage of the bar:

bar = lowbar.LowBar()

completion = 0
for i in range(10):
    time.sleep(2) # This would be replaced with an actual task
    bar.update_smooth(completion)
    bar.log(f"Task {i+1} completed")
    completion += 10
bar.clear()

print("Tasks complete!")

You don't even need a loop:

bar = lowbar.LowBar()

bar.update(0)
time.sleep(1)
bar.update_smooth(10)
time.sleep(2)
bar.update_smooth(40)
time.sleep(2)
bar.update_smooth(100)
bar.clear()

print("Tasks complete!")

The bar can also used with a context manager. This will automatically start the bar at 0% and clear the bar when exiting:

with lowbar.LowBar() as bar:
    bar.update(10)
    time.sleep(2)
    bar.update_smooth(100)

print("Tasks complete!")

You can change the load fill and blank fill chars as well:

bar = lowbar.LowBar(bar_load_fill="O", bar_blank_fill=".")

Contributing

All contributions are welcome!

If you wish to to report a bug or suggest a feature, open an issue.

You can also make a pull request directly.

License

MIT License

Copyright (c) 2022 AnnikaV9

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.