import arcpy

# A list of features and coordinate pairs
feature_info = [[[90, -180], [90, 180], ],
            [[90, 180], [-90, 180], ]]

# A list that will hold each of the Polyline objects
features = []

for feature in feature_info:
    # Create a Polyline object based on the array of points
    # Append to the list of Polyline objects
    features.append(
    arcpy.Polyline(
        arcpy.Array([arcpy.Point(*coords) for coords in feature])))

# Persist a copy of the Polyline objects using CopyFeatures
arcpy.CopyFeatures_management(features,"C:/Arcpy/Test/line.shp")