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finding and replacing elements in a list
...1]
>>> for n, i in enumerate(a):
... if i == 1:
... a[n] = 10
...
>>> a
[10, 2, 3, 4, 5, 10, 2, 3, 4, 5, 10]
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How to print time in format: 2009‐08‐10 18:17:54.811
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