Introduction to string-progressbar
The string-progressbar library in Python is a versatile, easy-to-use tool for creating visually appealing progress bars in terminal applications. It is particularly useful for tracking the progress of loops, especially those involving file operations, data processing, or network requests.
Basic Usage
Let’s start with the basics of how to use the string-progressbar
library in Python.
from progressbar import ProgressBar
bar = ProgressBar() for i in bar(range(100)):
# Simulate some work
time.sleep(0.1)
Customizing the Progress Bar
The ProgressBar
class comes with several options for customization. Below are a few examples:
Changing the Widgets
from progressbar import ProgressBar, Percentage, Bar
widgets = ['Progress: ', Percentage(), ' ', Bar(marker='=', left='[', right=']')] bar = ProgressBar(widgets=widgets, maxval=100).start() for i in range(100):
bar.update(i+1)
# Simulate some work
time.sleep(0.1)
bar.finish()
Using Different Markers
from progressbar import ProgressBar
bar = ProgressBar(marker='#') for i in bar(range(100)):
# Simulate some work
time.sleep(0.1)
Advanced Examples
Here are some advanced examples showcasing various features of the string-progressbar
library.
Progress Bar with Timer and ETA
from progressbar import ProgressBar, Timer, ETA
widgets = ['Time: ', Timer(), ' ', ETA()] bar = ProgressBar(widgets=widgets, maxval=100).start() for i in range(100):
bar.update(i+1)
# Simulate some work
time.sleep(0.1)
bar.finish()
Custom Progress Bar Format
from progressbar import ProgressBar, Percentage, Bar, RotatingMarker
widgets = ['Progress: ', Percentage(), ' ', Bar(marker=RotatingMarker()), ' ', Timer()] bar = ProgressBar(widgets=widgets, maxval=100).start() for i in range(100):
bar.update(i+1)
# Simulate some work
time.sleep(0.1)
bar.finish()
App Example Using string-progressbar
Here is a more comprehensive example of a Python application that uses the string-progressbar
library:
import time from progressbar import ProgressBar, Percentage, Bar
def process_data(items):
bar = ProgressBar(widgets=[Percentage(), Bar()], maxval=len(items)).start()
for i, item in enumerate(items):
# Simulate processing data
time.sleep(0.1)
bar.update(i + 1)
bar.finish()
if __name__ == "__main__":
data = list(range(100))
print("Starting data processing...")
process_data(data)
print("Data processing completed.")
The string-progressbar library is highly customizable and takes the hassle out of tracking the progress of tasks. From simple progress indicators to complex bars with custom widgets and styles, this library can handle it all.
Start using string-progressbar
in your next Python project and enhance user experience by providing real-time progress updates.
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