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I am trying to import and use lazy Laurent series rings in sage, documented here: (http://doc.sagemath.org/html/en/reference/power_series/sage/rings/lazy_laurent_series_ring.html). I have the latest version of sage installed, and yet when I attempt to import/install the package it is nowhere to be found.

from sage.rings.lazy_laurent_series_ring import LazyLaurentSeriesRing --------------------------------------------------------------------------- ImportError Traceback (most recent call last) <ipython-input-1-db0f55e1138b> in <module>() ----> 1 from sage.rings.lazy_laurent_series_ring import LazyLaurentSeriesRing

ImportError: No module named lazy_laurent_series_ring

I then tried to download it, perhaps I am not downloading the correct package? Where is it hiding?

sage -i lazy_laurent_series
Error: package 'lazy_laurent_series' not found
Note: if it is an old-style package, use -p instead of -i to install it

I am trying to import and use lazy Laurent series rings in sage, documented here: (http://doc.sagemath.org/html/en/reference/power_series/sage/rings/lazy_laurent_series_ring.html). I have the latest version of sage installed, and yet when I attempt to import/install the package it is nowhere to be found.

 from sage.rings.lazy_laurent_series_ring import LazyLaurentSeriesRing
    ---------------------------------------------------------------------------
    ImportError                               Traceback (most recent call last)
    <ipython-input-1-db0f55e1138b> in <module>()
    ----> 1 from sage.rings.lazy_laurent_series_ring import LazyLaurentSeriesRing
LazyLaurentSeriesRing
  
 ImportError: No module named lazy_laurent_series_ring
 
I then tried to download it, perhaps I am not downloading the correct package? Where is it hiding?
 
sage -i lazy_laurent_series
Error: package 'lazy_laurent_series' not found
Note: if it is an old-style package, use -p instead of -i to install it