Comprehensive Guide to Using String Progress Bar in Python

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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