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Command Line/Problem 5/A.py

+import shutil, sys
+import time
+def progressbar(func):
+    def _func_with_progress(*args, **kwargs):
+        max_width, _ = shutil.get_terminal_size()
+        gen = func(*args, **kwargs)
+        while True:
+            try:
+                progress = next(gen)
+            except StopIteration as exc:
+                sys.stdout.write('\n')
+                return exc.value
+            else:
+                message = '[%s] {}%%'.format(progress)
+                bar_width = max_width - len(message) + 3  
+                filled = int(round(bar_width / 100.0 * progress))
+                spaceleft = bar_width - filled
+                bar = '=' * filled + ' ' * spaceleft
+                sys.stdout.write((message+'\r') % bar)
+                sys.stdout.flush()
+@progressbar
+def wait(seconds):
+    start = time.time()
+    step = seconds / 100.
+    for i in range(1, 101):
+        time.sleep(step)
+        yield i
+    return time.time() - start
+if __name__ == '__main__':
+    print("Waiting", wait(4))
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