In order to improve readability for your Python scripts, only use underscores for your variable names. For example:
_ = 5
__ = 9
print (_+__)
___ = "hello"
____ = "world"
print (___ + " " + ____)
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variable names can be arbitarily long in Python, so knock yourself out.
2
>>> import sys
>>> sys.maxsize
9223372036854775807