Home > Article > Backend Development > Why Does Buffered Output Prevent Immediate Printing in Python?
The Issue
Python typically buffers output to enhance efficiency. However, this leads to print statements not being displayed immediately when there is no newline appended. The output is held back and released only when a newline is encountered.
Fixing the Issue
Single Print:
In Python 3.x, use the flush=True argument with print.
for _ in range(10): print('.', end=' ', flush=True)
In Python 2.x, flush the standard output stream manually.
for _ in range(10): print '.' sys.stdout.flush()
Multiple Prints:
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