strip whitespace

gnpy/core/convert.py

@@ -7,11 +7,11 @@ xls to json parser, that can be called directly from the transmission_main_examp
 xls examples are meshTopologyExampleV2.xls and CORONET_Global_Topology.xls
 Require Nodes and Links sheets, Eqpt sheet is optional
 *in Nodes sheet, only the 'City' column is mandatory. The column 'Type' is discovered based
-on the topology: degree 2 = ILA, other degrees = ROADM. The value is also corrected if the user 
+on the topology: degree 2 = ILA, other degrees = ROADM. The value is also corrected if the user
 specifies an ILA of degree != 2.
-*In Links sheet only the 3 first columns (Node A, Node Z and east Distance (km)) are mandatory. 
+*In Links sheet only the 3 first columns (Node A, Node Z and east Distance (km)) are mandatory.
 Missing west information are copied from east information so it is possible to input undir data
-*in Eqpt sheet 
+*in Eqpt sheet
 
 """
 from sys import exit
@@ -39,19 +39,19 @@ class Link(namedtuple('Link', 'from_city to_city \
     west_distance west_fiber west_lineic west_con_in west_con_out west_pmd west_cable \
     distance_units')):
     def __new__(cls, from_city, to_city,
-      east_distance, east_fiber='SSMF', east_lineic=0.2, 
-      east_con_in=None, east_con_out=None, east_pmd=0.1, east_cable='', 
-      west_distance='', west_fiber='', west_lineic='', 
+      east_distance, east_fiber='SSMF', east_lineic=0.2,
+      east_con_in=None, east_con_out=None, east_pmd=0.1, east_cable='',
+      west_distance='', west_fiber='', west_lineic='',
       west_con_in='', west_con_out='', west_pmd='', west_cable='',
       distance_units='km'):
-        east_values = [east_distance, east_fiber, east_lineic, east_con_in, east_con_out, 
+        east_values = [east_distance, east_fiber, east_lineic, east_con_in, east_con_out,
                         east_pmd, east_cable]
-        west_values = [west_distance, west_fiber, west_lineic, west_con_in, west_con_out, 
+        west_values = [west_distance, west_fiber, west_lineic, west_con_in, west_con_out,
                         west_pmd, west_cable]
         default_values = [80,'SSMF',0.2,None,None,0.1,'']
         east_values = [x[0] if x[0] != '' else x[1] for x in zip(east_values,default_values)]
         west_values = [x[0] if x[0] != '' else x[1] for x in zip(west_values,east_values)]
-        return super().__new__(cls, from_city, to_city, *east_values, *west_values, distance_units)     
+        return super().__new__(cls, from_city, to_city, *east_values, *west_values, distance_units)
 
 class Eqpt(namedtuple('Eqpt', 'from_city to_city \
     egress_amp_type egress_att_in egress_amp_gain egress_amp_tilt egress_amp_att_out\
@@ -64,7 +64,7 @@ class Eqpt(namedtuple('Eqpt', 'from_city to_city \
             ingress_amp_type, ingress_att_in, ingress_amp_gain, ingress_amp_tilt, ingress_amp_att_out]
         default_values = ['','','',0,0,0,0,'',0,0,0,0]
         values = [x[0] if x[0] != '' else x[1] for x in zip(values,default_values)]
-        return super().__new__(cls, *values)        
+        return super().__new__(cls, *values)
 
 def sanity_check(nodes, nodes_by_city, links_by_city, eqpts_by_city):
     try :
@@ -83,7 +83,7 @@ def sanity_check(nodes, nodes_by_city, links_by_city, eqpts_by_city):
 
     for city,link in links_by_city.items():
         if nodes_by_city[city].node_type.lower()=='ila' and len(link) != 2:
-            #wrong input: ILA sites can only be Degree 2 
+            #wrong input: ILA sites can only be Degree 2
             # => correct to make it a ROADM and remove entry in links_by_city
             #TODO : put in log rather than print
             print(f'invalid node type ({nodes_by_city[city].node_type})\
@@ -115,7 +115,7 @@ def convert_file(input_filename, filter_region=[]):
     global eqpts_by_city
     eqpts_by_city = defaultdict(list)
     for eqpt in eqpts:
-        eqpts_by_city[eqpt.from_city].append(eqpt) 
+        eqpts_by_city[eqpt.from_city].append(eqpt)
 
     nodes = sanity_check(nodes, nodes_by_city, links_by_city, eqpts_by_city)
 
@@ -148,7 +148,7 @@ def convert_file(input_filename, filter_region=[]):
                                         'latitude':  x.latitude,
                                         'longitude': x.longitude}},
               'type': 'Fused'}
-             for x in nodes_by_city.values() if x.node_type.lower() == 'fused'] +                                    
+             for x in nodes_by_city.values() if x.node_type.lower() == 'fused'] +
             [{'uid': f'fiber ({x.from_city} → {x.to_city})-{x.east_cable}',
               'metadata': {'location': midpoint(nodes_by_city[x.from_city],
                                                 nodes_by_city[x.to_city])},
@@ -171,7 +171,7 @@ def convert_file(input_filename, filter_region=[]):
                          'loss_coef': x.west_lineic,
                          'con_in':x.west_con_in,
                          'con_out':x.west_con_out}
-            } # missing ILA construction 
+            } # missing ILA construction
               for x in links] +
             [{'uid': f'egress edfa in {e.from_city} to {e.to_city}',
               'metadata': {'location': {'city':      nodes_by_city[e.from_city].city,
@@ -193,7 +193,7 @@ def convert_file(input_filename, filter_region=[]):
               'type_variety': e.ingress_amp_type,
               'operational': {'gain_target': e.ingress_amp_gain,
                               'tilt_target': e.ingress_amp_tilt}
-              }              
+              }
              for e in eqpts if e.ingress_amp_type.lower() != ''],
         'connections':
             list(chain.from_iterable([eqpt_connection_by_city(n.city)
@@ -205,7 +205,7 @@ def convert_file(input_filename, filter_region=[]):
              for x in nodes_by_city.values() if x.node_type.lower()=='roadm'],
             [{'from_node': f'roadm {x.city}',
               'to_node':   f'trx {x.city}'}
-             for x in nodes_by_city.values() if x.node_type.lower()=='roadm'])))            
+             for x in nodes_by_city.values() if x.node_type.lower()=='roadm'])))
     }
 
     #print(dumps(data, indent=2))
@@ -235,20 +235,20 @@ def parse_excel(input_filename):
         expected = ['City', 'State', 'Country', 'Region', 'Latitude', 'Longitude']
         if header != expected:
             raise ValueError(f'Malformed header on Nodes sheet: {header} != {expected}')
-        """ 
+        """
 
         nodes = []
         for row in all_rows(nodes_sheet, start=5):
             nodes.append(Node(*(x.value for x in row[0:NODES_COLUMN])))
         #check input
         expected_node_types = ('ROADM', 'ILA', 'FUSED')
-        nodes = [n._replace(node_type='ILA') 
+        nodes = [n._replace(node_type='ILA')
                 if not (n.node_type in expected_node_types) else n for n in nodes]
 
         # sanity check
         """
         header = [x.value.strip() for x in links_sheet.row(4)]
-        expected = ['Node A', 'Node Z', 
+        expected = ['Node A', 'Node Z',
             'Distance (km)', 'Fiber type', 'lineic att', 'Con_in', 'Con_out', 'PMD', 'Cable id',
             'Distance (km)', 'Fiber type', 'lineic att', 'Con_in', 'Con_out', 'PMD', 'Cable id']
         if header != expected:
@@ -280,7 +280,7 @@ def eqpt_connection_by_city(city_name):
     if nodes_by_city[city_name].node_type.lower() in ('ila', 'fused'):
         # Then len(other_cities) == 2
         direction = ['ingress', 'egress']
-        for i in range(2):     
+        for i in range(2):
             from_ = fiber_link(other_cities[i], city_name)
             in_ = eqpt_in_city_to_city(city_name, other_cities[0],direction[i])
             to_ = fiber_link(city_name, other_cities[1-i])
@@ -334,7 +334,7 @@ def fiber_dest_from_source(city_name):
     destinations = []
     links_from_city = links_by_city[city_name]
     for l in links_from_city:
-        if l.from_city == city_name: 
+        if l.from_city == city_name:
             destinations.append(l.to_city)
         else:
             destinations.append(l.from_city)

gnpy/core/elements.py

@@ -109,7 +109,7 @@ class Roadm(Node):
                 'metadata'      : {
                     'location': self.metadata['location']._asdict()
                                     }
-                }        
+                }
 
     def __repr__(self):
         return f'{type(self).__name__}(uid={self.uid!r}, loss={self.loss!r})'
@@ -174,7 +174,7 @@ class Fused(Node):
                                nonlinear_interference=pwr.nli/attenuation,
                                amplified_spontaneous_emission=pwr.ase/attenuation)
             yield carrier._replace(power=pwr)
-    
+
     def update_pref(self, pref):
         return pref._replace(p_span0=pref.p0, p_spani=pref.pi - self.loss)
 
@@ -192,7 +192,7 @@ class Fiber(Node):
             params = {}
         if 'con_in' not in params:
             # if not defined in the network json connector loss in/out
-            # the None value will be updated in network.py[build_network] 
+            # the None value will be updated in network.py[build_network]
             # with default values from eqpt_config.json[Spans]
             params['con_in'] = None
             params['con_out'] = None
@@ -209,8 +209,8 @@ class Fiber(Node):
         self.con_in = self.params.con_in
         self.con_out = self.params.con_out
         self.dispersion = self.params.dispersion  # s/m/m
-        self.gamma = self.params.gamma # 1/W/m     
-        self.pch_out = None  
+        self.gamma = self.params.gamma # 1/W/m
+        self.pch_out = None
         # TODO|jla: discuss factor 2 in the linear lineic attenuation
 
     @property
@@ -249,15 +249,15 @@ class Fiber(Node):
     def fiber_loss(self):
         # dB fiber loss, not including padding attenuator
         return self.loss_coef * self.length + self.con_in + self.con_out
-    
+
     @property
     def loss(self):
         #total loss incluiding padding att_in: useful for polymorphism with roadm loss
         return self.loss_coef * self.length + self.con_in + self.con_out + self.att_in
-    
+
     @property
     def passive(self):
-        return True   
+        return True
 
     @property
     def lin_attenuation(self):
@@ -459,7 +459,7 @@ class Edfa(Node):
         if self.pin_db is None or self.pout_db is None:
             return f'{type(self).__name__} {self.uid}'
         nf = mean(self.nf)
-        return '\n'.join([f'{type(self).__name__} {self.uid}', 
+        return '\n'.join([f'{type(self).__name__} {self.uid}',
                           f'  type_variety:           {self.params.type_variety}',
                           f'  effective gain(dB):     {self.effective_gain:.2f}',
                           f'  (before att_in and before output VOA)',
@@ -519,13 +519,13 @@ class Edfa(Node):
             g1a = gain_target - self.params.nf_model.delta_p - dg
             nf_avg = lin2db(db2lin(self.params.nf_model.nf1) + db2lin(self.params.nf_model.nf2)/db2lin(g1a))
         elif self.params.type_def == 'fixed_gain':
-            nf_avg = self.params.nf_model.nf0            
+            nf_avg = self.params.nf_model.nf0
         else:
             nf_avg = polyval(self.params.nf_fit_coeff, -dg)
         if avg:
             return nf_avg + pad
         else:
-            return self.interpol_nf_ripple + nf_avg + pad # input VOA = 1 for 1 NF degradation            
+            return self.interpol_nf_ripple + nf_avg + pad # input VOA = 1 for 1 NF degradation
 
     def noise_profile(self, df):
         """ noise_profile(bw) computes amplifier ase (W) in signal bw (Hz)
@@ -704,7 +704,7 @@ class Edfa(Node):
             yield carrier._replace(power=pwr)
 
     def update_pref(self, pref):
-        return pref._replace(p_span0=pref.p0, 
+        return pref._replace(p_span0=pref.p0,
                             p_spani=pref.pi + self.effective_gain - self.operational.out_voa)
 
     def __call__(self, spectral_info):

gnpy/core/equipment.py

@@ -4,7 +4,7 @@
 '''
 nf model parameters calculation
 calculate nf1, nf2 and Delta_P of a 2 coils edfa with internal VOA
-from nf_min and nf_max inputs 
+from nf_min and nf_max inputs
 '''
 from numpy import clip, polyval
 from sys import exit
@@ -31,12 +31,12 @@ AmpBase = namedtuple(
     ' nf_model nf_fit_coeff nf_ripple dgt gain_ripple out_voa_auto allowed_for_design')
 class Amp(AmpBase):
     def __new__(cls,
-            type_variety, type_def, gain_flatmax, gain_min, p_max, nf_model=None, 
-            nf_fit_coeff=None, nf_ripple=None, dgt=None, gain_ripple=None, 
+            type_variety, type_def, gain_flatmax, gain_min, p_max, nf_model=None,
+            nf_fit_coeff=None, nf_ripple=None, dgt=None, gain_ripple=None,
              out_voa_auto=False, allowed_for_design=True):
         return super().__new__(cls,
-            type_variety, type_def, gain_flatmax, gain_min, p_max, 
-            nf_model, nf_fit_coeff, nf_ripple, dgt, gain_ripple, 
+            type_variety, type_def, gain_flatmax, gain_min, p_max,
+            nf_model, nf_fit_coeff, nf_ripple, dgt, gain_ripple,
             out_voa_auto, allowed_for_design)
 
     @classmethod
@@ -162,7 +162,7 @@ def trx_mode_params(equipment, trx_type_variety='', trx_mode='', error_message=F
             print('Computation stopped.')
             exit()
         else:
-            # default transponder charcteristics 
+            # default transponder charcteristics
             trx_params['frequency'] = {'min': default_si_data.f_min, 'max': default_si_data.f_max}
             trx_params['baud_rate'] = default_si_data.baud_rate
             trx_params['spacing'] = default_si_data.spacing
@@ -178,10 +178,10 @@ def trx_mode_params(equipment, trx_type_variety='', trx_mode='', error_message=F
 
 def automatic_spacing(baud_rate):
     """return the min possible channel spacing for a given baud rate"""
-    spacing_list = [(38e9,50e9), (67e9,75e9), (92e9,100e9)] #list of possible tuples 
+    spacing_list = [(38e9,50e9), (67e9,75e9), (92e9,100e9)] #list of possible tuples
                                                 #[(max_baud_rate, spacing_for_this_baud_rate)]
     acceptable_spacing_list = list(filter(lambda x : x[0]>baud_rate, spacing_list))
-    if len(acceptable_spacing_list) < 1: 
+    if len(acceptable_spacing_list) < 1:
         #can't find an adequate spacing from the list, so default to:
         return baud_rate*1.2
     else:

gnpy/core/info.py

@@ -25,7 +25,7 @@ class ConvenienceAccess:
             if abbrev in kwargs:
                 kwargs[field] = kwargs.pop(abbrev)
         return self._replace(**kwargs)
-        
+
     #def ptot_dbm(self):
     #    p = array([c.power.signal+c.power.nli+c.power.ase for c in self.carriers])
     #    return lin2db(sum(p*1e3))
@@ -64,7 +64,7 @@ def create_input_spectral_information(f_min, roll_off, baud_rate, power, spacing
     pref = lin2db(power * 1e3)
     si = SpectralInformation(pref=Pref(pref, pref))
     si = si.update(carriers=[
-            Channel(f, (f_min+spacing*f), 
+            Channel(f, (f_min+spacing*f),
             baud_rate, roll_off, Power(power, 0, 0)) for f in range(1,nb_channel+1)
             ])
     return si

gnpy/core/network.py

@@ -26,7 +26,7 @@ logger = getLogger(__name__)
 def load_network(filename, equipment):
     json_filename = ''
     if filename.suffix.lower() == '.xls':
-        logger.info('Automatically generating topology JSON file')        
+        logger.info('Automatically generating topology JSON file')
         json_filename = convert_file(filename)
     elif filename.suffix.lower() == '.json':
         json_filename = filename
@@ -95,7 +95,7 @@ def select_edfa(gain_target, power_target, equipment):
                 power=min(
                     pin
                     +edfa.gain_flatmax
-                    +TARGET_EXTENDED_GAIN, 
+                    +TARGET_EXTENDED_GAIN,
                     edfa.p_max
                     )
                     -power_target,
@@ -106,7 +106,7 @@ def select_edfa(gain_target, power_target, equipment):
 
     acceptable_gain_list = \
     list(filter(lambda x : x.gain>-TARGET_EXTENDED_GAIN, edfa_list))
-    if len(acceptable_gain_list) < 1: 
+    if len(acceptable_gain_list) < 1:
         #no amplifier satisfies the required gain, so pick the highest gain:
         gain_max = max(edfa_list, key=itemgetter(2)).gain
         #pick up all amplifiers that share this max gain:
@@ -127,10 +127,10 @@ def select_edfa(gain_target, power_target, equipment):
 
 def set_roadm_loss(network, equipment, pref_ch_db):
     roadms = [roadm for roadm in network if isinstance(roadm, Roadm)]
-    power_mode = equipment['Spans']['default'].power_mode    
+    power_mode = equipment['Spans']['default'].power_mode
     default_roadm_loss = equipment['Roadms']['default'].gain_mode_default_loss
     pref_roadm_db = equipment['Roadms']['default'].power_mode_pref
-    roadm_loss = pref_ch_db - pref_roadm_db 
+    roadm_loss = pref_ch_db - pref_roadm_db
 
     for roadm in roadms:
         if power_mode:
@@ -165,7 +165,7 @@ def target_power(dp_from_gain, network, node, equipment): #get_fiber_dp
     #print(f'{repr(node)} delta power in:\n{dp}dB')
 
     return dp
-    
+
 
 def prev_node_generator(network, node):
     """fused spans interest:
@@ -187,7 +187,7 @@ def next_node_generator(network, node):
         yield next_node
         yield from next_node_generator(network, next_node)
     else:
-        StopIteration 
+        StopIteration
 
 def span_loss(network, node):
     """Fused span interest:
@@ -197,10 +197,10 @@ def span_loss(network, node):
         prev_node = next(n for n in network.predecessors(node))
         if isinstance(prev_node, Fused):
             loss += sum(n.loss for n in prev_node_generator(network, node))
-    except StopIteration: 
+    except StopIteration:
         pass
     try:
-        next_node = next(n for n in network.successors(node))        
+        next_node = next(n for n in network.successors(node))
         if isinstance(next_node, Fused):
             loss += sum(n.loss for n in next_node_generator(network, node))
     except StopIteration:
@@ -209,7 +209,7 @@ def span_loss(network, node):
 
 def find_first_node(network, node):
     """Fused node interest:
-    returns the 1st node at the origin of a succession of fused nodes 
+    returns the 1st node at the origin of a succession of fused nodes
     (aka no amp in between)"""
     this_node = node
     for this_node in prev_node_generator(network, node):
@@ -218,7 +218,7 @@ def find_first_node(network, node):
 
 def find_last_node(network, node):
     """Fused node interest:
-    returns the last node in a succession of fused nodes 
+    returns the last node in a succession of fused nodes
     (aka no amp in between)"""
     this_node = node
     for this_node in next_node_generator(network, node):
@@ -231,7 +231,7 @@ def set_amplifier_voa(amp, pref_total_db, power_mode):
         if power_mode:
             gain_target = amp.operational.gain_target
             pout = pref_total_db + amp.dp_db
-            voa = min(amp.params.p_max-pout, 
+            voa = min(amp.params.p_max-pout,
                       amp.params.gain_flatmax-amp.operational.gain_target)
             voa = round2float(max(voa, 0), 0.5) - VOA_MARGIN if amp.params.out_voa_auto else 0
             amp.dp_db = amp.dp_db + voa
@@ -283,7 +283,7 @@ def set_egress_amplifier(network, roadm, equipment, pref_total_db):
 
 
 def add_egress_amplifier(network, node):
-    next_nodes = [n for n in network.successors(node) 
+    next_nodes = [n for n in network.successors(node)
         if not (isinstance(n, Transceiver) or isinstance(n, Fused) or isinstance(n, Edfa))]
         #no amplification for fused spans or TRX
     for i, next_node in enumerate(next_nodes):
@@ -393,16 +393,16 @@ def build_network(network, equipment, pref_ch_db, pref_total_db):
     padding = default_span_data.padding
 
     #set raodm loss for gain_mode before to build network
-    set_roadm_loss(network, equipment, pref_ch_db) 
+    set_roadm_loss(network, equipment, pref_ch_db)
     fibers = [f for f in network.nodes() if isinstance(f, Fiber)]
     add_connector_loss(fibers, con_in, con_out, default_span_data.EOL)
     add_fiber_padding(network, fibers, padding)
-    # don't group split fiber and add amp in the same loop 
+    # don't group split fiber and add amp in the same loop
     # =>for code clarity (at the expense of speed):
     for fiber in fibers:
         split_fiber(network, fiber, bounds, target_length, equipment)
 
-    amplified_nodes = [n for n in network.nodes() 
+    amplified_nodes = [n for n in network.nodes()
                         if isinstance(n, Fiber) or isinstance(n, Roadm)]
     for node in amplified_nodes:
         add_egress_amplifier(network, node)
@@ -411,9 +411,9 @@ def build_network(network, equipment, pref_ch_db, pref_total_db):
     for roadm in roadms:
         set_egress_amplifier(network, roadm, equipment, pref_total_db)
 
-    #support older json input topology wo Roadms:      
-    if len(roadms) == 0: 
+    #support older json input topology wo Roadms:
+    if len(roadms) == 0:
         trx = [t for t in network.nodes() if isinstance(t, Transceiver)]
         for t in trx:
-            set_egress_amplifier(network, t, equipment, pref_total_db)        
+            set_egress_amplifier(network, t, equipment, pref_total_db)
 

gnpy/core/request.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 # TelecomInfraProject/gnpy/examples
 # Module name : path_requests_run.py
-# Version : 
+# Version :
 # License : BSD 3-Clause Licence
 # Copyright (c) 2018, Telecom Infra Project
 
@@ -10,7 +10,7 @@
 @author: jeanluc-auge
 read json request file in accordance with:
     Yang model for requesting Path Computation
-    draft-ietf-teas-yang-path-computation-01.txt. 
+    draft-ietf-teas-yang-path-computation-01.txt.
 and returns path results in terms of path and feasibility
 
 """
@@ -76,8 +76,8 @@ class Result_element(Element):
         self.computed_path = computed_path
         hop_type = []
         for e in computed_path :
-            if isinstance(e, Transceiver) : 
-                hop_type.append(' - '.join([path_request.tsp,path_request.tsp_mode])) 
+            if isinstance(e, Transceiver) :
+                hop_type.append(' - '.join([path_request.tsp,path_request.tsp_mode]))
             else:
                 hop_type.append('not recorded')
         self.hop_type = hop_type
@@ -203,10 +203,10 @@ class Result_element(Element):
                             ]
                     }
                 }
-                    
+
     @property
     def json(self):
-        return self.pathresult 
+        return self.pathresult
 
 def compute_constrained_path(network, req):
     trx = [n for n in network.nodes() if isinstance(n, Transceiver)]
@@ -226,7 +226,7 @@ def compute_constrained_path(network, req):
                 node = next(el for el in roadm if el.uid == f'roadm {n}')
             except StopIteration:
                 try:
-                    node = next(el for el in edfa 
+                    node = next(el for el in edfa
                         if el.uid.startswith(f'egress edfa in {n}'))
                 except StopIteration:
                     msg = f'could not find node : {n} in network topology: \
@@ -257,7 +257,7 @@ def compute_constrained_path(network, req):
     #     target=next(el for el in trx if el.uid == req.destination)):
     #     print([e.uid for e in p if isinstance(e,Roadm)])
 
-    return total_path 
+    return total_path
 
 def propagate(path, req, equipment, show=False):
     #update roadm loss in case of power sweep (power mode only)
@@ -269,13 +269,13 @@ def propagate(path, req, equipment, show=False):
         si = el(si)
         if show :
             print(el)
-    return path    
+    return path
 
 
 def jsontocsv(json_data,equipment,fileout):
     # read json path result file in accordance with:
     # Yang model for requesting Path Computation
-    # draft-ietf-teas-yang-path-computation-01.txt. 
+    # draft-ietf-teas-yang-path-computation-01.txt.
     # and write results in an CSV file
 
     mywriter = writer(fileout)
@@ -290,32 +290,32 @@ def jsontocsv(json_data,equipment,fileout):
         ['path-route-object']['unnumbered-hop']['node-id']
         destination = p['path-properties']['path-route-objects'][-1]\
         ['path-route-object']['unnumbered-hop']['node-id']
-        pth        = ' | '.join([ e['path-route-object']['unnumbered-hop']['node-id'] 
+        pth        = ' | '.join([ e['path-route-object']['unnumbered-hop']['node-id']
                  for e in p['path-properties']['path-route-objects']])
 
         [tsp,mode] = p['path-properties']['path-route-objects'][0]\
         ['path-route-object']['unnumbered-hop']['hop-type'].split(' - ')
-        
+
         # find the min  acceptable OSNR, baud rate from the eqpt library based on tsp (tupe) and mode (format)
         try:
-            [minosnr, baud_rate] = next([m['OSNR'] , m['baud_rate']]  
+            [minosnr, baud_rate] = next([m['OSNR'] , m['baud_rate']]
                 for m in equipment['Transceiver'][tsp].mode if  m['format']==mode)
 
         # for debug
         # print(f'coucou {baud_rate}')
         except IndexError:
             msg = f'could not find tsp : {self.tsp} with mode: {self.tsp_mode} in eqpt library'
-            
+
             raise ValueError(msg)
-        output_snr = next(e['accumulative-value'] 
+        output_snr = next(e['accumulative-value']
             for e in p['path-properties']['path-metric'] if e['metric-type'] == 'SNR@0.1nm')
-        output_snrbandwidth = next(e['accumulative-value'] 
+        output_snrbandwidth = next(e['accumulative-value']
             for e in p['path-properties']['path-metric'] if e['metric-type'] == 'SNR@bandwidth')
-        output_osnr = next(e['accumulative-value'] 
+        output_osnr = next(e['accumulative-value']
             for e in p['path-properties']['path-metric'] if e['metric-type'] == 'OSNR@0.1nm')
-        output_osnrbandwidth = next(e['accumulative-value'] 
+        output_osnrbandwidth = next(e['accumulative-value']
             for e in p['path-properties']['path-metric'] if e['metric-type'] == 'OSNR@bandwidth')
-        power = next(e['accumulative-value'] 
+        power = next(e['accumulative-value']
             for e in p['path-properties']['path-metric'] if e['metric-type'] == 'reference_power')
         if isinstance(output_snr, str):
             isok = ''
@@ -333,5 +333,5 @@ def jsontocsv(json_data,equipment,fileout):
             output_osnr,
             output_snrbandwidth,
             output_snr,
-            isok 
-            ))
+            isok
+            ))

gnpy/core/utils.py

@@ -61,10 +61,10 @@ def write_csv(obj, filename):
             #main header
             w.writerow([data_key])
             #sub headers:
-            headers = [_ for _ in data_list[0].keys()]            
+            headers = [_ for _ in data_list[0].keys()]
             w.writerow(headers)
             for data_dict in data_list:
-                w.writerow([_ for _ in data_dict.values()])     
+                w.writerow([_ for _ in data_dict.values()])
 
 def c():
     """