In fff In id fff Out 3074772504L In def ff print id print id fff In ff

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In [3]: fff= "s"
In [4]: id(fff)
Out[4]: 3074772504L
In [5]: def ff(d):
...: print id(d)
...: print id(fff)
...:
In [6]: ff(fff)
3074772504
3074772504
In [7]: