Class OneOfPosition

source code

      object --+    
               |    
             int --+
                   |
      object --+   |
               |   |
AbstractPosition --+
                   |
                  OneOfPosition

Specify a position where the location can be multiple positions.

This models the GenBank 'one-of(1888,1901)' function, and tries
to make this fit within the Biopython Position models. If this was
a start position it should act like 1888, but as an end position 1901.

>>> p = OneOfPosition(1888, [ExactPosition(1888), ExactPosition(1901)])
>>> p
OneOfPosition(1888, choices=[ExactPosition(1888), ExactPosition(1901)])
>>> int(p)
1888

Interget comparisons and operators act like using int(p),

>>> p == 1888
True
>>> p <= 1888
True
>>> p > 1888
False
>>> p + 100
1988

>>> isinstance(p, OneOfPosition)
True
>>> isinstance(p, AbstractPosition)
True
>>> isinstance(p, int)
True

The old legacy properties of position and extension give the
starting/lowest/left-most position as an integer, and the
distance to the ending/highest/right-most position as an integer.
Note that the position object will act like one of the list of
possible locations depending on how it was created:

>>> p2 = OneOfPosition(1901, [ExactPosition(1888), ExactPosition(1901)])
>>> p.position == p2.position == 1888
True
>>> p.extension == p2.extension == 13
True
>>> int(p) == int(p2)
False
>>> p == 1888
True
>>> p2 == 1901
True

a new object with type S, a subtype of T

Initialize with a set of posssible positions.

position_list is a list of AbstractPosition derived objects,
specifying possible locations.

position is an integer specifying the default behaviour.

String representation of the OneOfPosition location for debugging.

str(x)

Legacy attribute to get (left) position as integer (OBSOLETE).

Legacy attribute to get extension as integer (OBSOLETE).