How to Create Console Counters in Python like C/C ?

Console Counters in Python

Q: How can I create console counters in Python, similar to those found in C/C programs, where the output is replaced with an updating value?

A: Simple String Update:

An easy solution is to write "r" before the string and omit the newline character. If the string length remains consistent, this method can suffice.

Example:

<code class="python">sys.stdout.write("\rDoing thing %i" % i)
sys.stdout.flush()</code>

Advanced Progress Bar:

For a more sophisticated approach, consider a progress bar. Here's an example:

<code class="python">def start_progress(title):
    global progress_x
    sys.stdout.write(title + ": [&" + "-" * 40 + "]" + chr(8) * 41)
    sys.stdout.flush()
    progress_x = 0

def progress(x):
    global progress_x
    x = int(x * 40 // 100)
    sys.stdout.write("#" * (x - progress_x))
    sys.stdout.flush()
    progress_x = x

def end_progress():
    sys.stdout.write("#" * (40 - progress_x) + "]\n")
    sys.stdout.flush()</code>

To use this progress bar, call start_progress(title) with a description of the operation, then call progress(x) with the percentage, and finally end_progress() to complete the operation.

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