How to print 'tight' dots horizontally in python?

If you want to get more control over the formatting then you need to use either:

import sys
sys.stdout.write('.')
sys.stdout.flush()  # otherwise won't show until some newline printed

.. instead of print, or use the Python 3 print function. This is available as a future import in later builds of Python 2.x as:

from __future__ import print_function
print('.', end='')

In Python 3 you can pass the keyword argument flush:

print('.', end='', flush=True)

which has the same effect as the two lines of sys.stdout above.

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