#!/usr/bin/env python
# coding: utf-8

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a = 5
b = 10
c = 1/0  # will fail
# nothing below here matters
d = a
e = b
f = c


# "Run all" will not execute any of the below cells
# due to the error in the cell above

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a


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b


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c


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get_ipython().system('pip list')


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