Remove unused imports

Change-Id: I66174048a9eaab0f79ba4c3b1d31ef4dc9c2009b

gnpy/core/convert.py

@@ -34,8 +34,7 @@ from difflib import get_close_matches
 from copy import copy
 from gnpy.core.utils import silent_remove
 from gnpy.core.exceptions import NetworkTopologyError
-from gnpy.core.elements import Transceiver, Roadm, Edfa, Fused, Fiber
-import time
+from gnpy.core.elements import Edfa, Fused, Fiber
 
 all_rows = lambda sh, start=0: (sh.row(x) for x in range(start, sh.nrows))
 

gnpy/core/elements.py

@@ -18,9 +18,9 @@ Network elements MUST implement two attributes .uid and .name representing a
 unique identifier and a printable name.
 '''
 
-from numpy import abs, arange, array, exp, divide, errstate, ones, squeeze
-from numpy import interp, log10, mean, pi, polyfit, polyval, sum
-from scipy.constants import c, h
+from numpy import abs, arange, array, divide, errstate, ones
+from numpy import interp, mean, pi, polyfit, polyval, sum
+from scipy.constants import h
 from collections import namedtuple
 
 from gnpy.core.node import Node

gnpy/core/equipment.py

@@ -8,8 +8,7 @@ gnpy.core.equipment
 This module contains functionality for specifying equipment.
 '''
 
-from numpy import clip, polyval
-from operator import itemgetter
+from numpy import clip
 from math import isclose
 from pathlib import Path
 from json import load

gnpy/core/info.py

@@ -10,11 +10,8 @@ This module contains classes for modelling :class:`SpectralInformation`.
 
 
 from collections import namedtuple
-from numpy import array
-from gnpy.core.utils import lin2db, db2lin
-from json import loads
-from gnpy.core.utils import load_json
-from gnpy.core.equipment import automatic_nch, automatic_spacing
+from gnpy.core.utils import lin2db
+from gnpy.core.equipment import automatic_nch
 
 class Power(namedtuple('Power', 'signal nli ase')):
     """carriers power in W"""

gnpy/core/network.py

@@ -10,17 +10,16 @@ This module contains functions for constructing networks of network elements.
 
 from gnpy.core.convert import convert_file
 from networkx import DiGraph
-from numpy import arange
 from scipy.interpolate import interp1d
 from logging import getLogger
 from os import path
-from operator import itemgetter, attrgetter
+from operator import attrgetter
 from gnpy.core import elements
-from gnpy.core.elements import Fiber, Edfa, Transceiver, Roadm, Fused, RamanFiber
+from gnpy.core.elements import Fiber, Edfa, Transceiver, Roadm, Fused
 from gnpy.core.equipment import edfa_nf
 from gnpy.core.exceptions import ConfigurationError, NetworkTopologyError
 from gnpy.core.units import UNITS
-from gnpy.core.utils import (load_json, save_json, round2float, db2lin, merge_amplifier_restrictions)
+from gnpy.core.utils import (load_json, save_json, round2float, merge_amplifier_restrictions)
 from collections import namedtuple
 
 logger = getLogger(__name__)

gnpy/core/node.py

@@ -18,7 +18,6 @@ This base class provides a more convenient way to define a network element
 via subclassing.
 '''
 
-from uuid import uuid4
 from collections import namedtuple
 
 class Location(namedtuple('Location', 'latitude longitude city region')):

gnpy/core/request.py

@@ -16,17 +16,17 @@ See: draft-ietf-teas-yang-path-computation-01.txt
 """
 
 from collections import namedtuple, OrderedDict
-from logging import getLogger, basicConfig, CRITICAL, DEBUG, INFO
+from logging import getLogger
 from networkx import (dijkstra_path, NetworkXNoPath, all_simple_paths)
 from networkx.utils import pairwise
 from numpy import mean
-from gnpy.core.service_sheet import Request_element, Element
-from gnpy.core.elements import Transceiver, Roadm, Edfa, Fused, Fiber
-from gnpy.core.utils import db2lin, lin2db
-from gnpy.core.info import create_input_spectral_information, SpectralInformation, Channel, Power
+from gnpy.core.service_sheet import Element
+from gnpy.core.elements import Transceiver, Roadm, Edfa
+from gnpy.core.utils import lin2db
+from gnpy.core.info import create_input_spectral_information
 from gnpy.core.exceptions import ServiceError, DisjunctionError
 import gnpy.core.ansi_escapes as ansi_escapes
-from copy import copy, deepcopy
+from copy import deepcopy
 from csv import writer
 from math import ceil
 

gnpy/core/science_utils.py

@@ -8,7 +8,6 @@ from scipy.interpolate import interp1d
 from scipy.optimize import OptimizeResult
 
 from gnpy.core.utils import db2lin
-from gnpy.core.parameters import SimParams
 
 
 logger = getLogger(__name__)

gnpy/core/service_sheet.py

@@ -17,16 +17,13 @@ try:
 except ModuleNotFoundError:
     exit('Required: `pip install xlrd`')
 from collections import namedtuple
-from logging import getLogger, basicConfig, CRITICAL, DEBUG, INFO
+from logging import getLogger
 from json import dumps
-from pathlib import Path
 from copy import deepcopy
-from gnpy.core.equipment import load_equipment, automatic_nch
-from gnpy.core.utils import db2lin, lin2db
+from gnpy.core.utils import db2lin
 from gnpy.core.exceptions import ServiceError
-from gnpy.core.network import load_network, build_network
 from gnpy.core.convert import corresp_names, corresp_next_node
-from gnpy.core.elements import Transceiver, Roadm, Edfa, Fused, Fiber
+from gnpy.core.elements import Transceiver, Roadm, Edfa, Fiber
 import gnpy.core.ansi_escapes as ansi_escapes
 
 SERVICES_COLUMN = 12