old_contents: """
  Copyright 2017-2018 Fizyr (https://fizyr.com)
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  
      http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  """
  
  import os
  import configparser
  import numpy as np
  import keras
  from ..utils.anchors import AnchorParameters
  
  
  def read_config_file(config_path):
      config = configparser.ConfigParser()
      config.read(config_path)
      
      assert os.path.isfile(config_path), "Could not find {}.".format(config_path)
  
      assert 'anchor_parameters' in config, \
          "Malformed config file. Verify that it contains the anchor_parameters section."
  
      assert {'sizes', 'strides', 'ratios', 'scales'} <= set(config['anchor_parameters']), \
          "Malformed config file. Verify that it contains the following keys: sizes, strides, ratios and scales."
  
      return config
  
  
  def parse_anchor_parameters(config):
      ratios  = np.array(list(map(float, config['anchor_parameters']['ratios'].split(' '))), keras.backend.floatx())
      scales  = np.array(list(map(float, config['anchor_parameters']['scales'].split(' '))), keras.backend.floatx())
      sizes   = list(map(int, config['anchor_parameters']['sizes'].split(' ')))
      strides = list(map(int, config['anchor_parameters']['strides'].split(' ')))
  
      return AnchorParameters(sizes, strides, ratios, scales)
  
new_contents: """
  Copyright 2017-2018 Fizyr (https://fizyr.com)
  
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at
  
      http://www.apache.org/licenses/LICENSE-2.0
  
  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
  """
  
  import os
  import configparser
  import numpy as np
  import keras
  from ..utils.anchors import AnchorParameters
  
  
  def read_config_file(config_path):
      config = configparser.ConfigParser()
      config.read(config_path)
  
      assert os.path.isfile(config_path), "Could not find {}.".format(config_path)
  
      assert 'anchor_parameters' in config, \
          "Malformed config file. Verify that it contains the anchor_parameters section."
  
      assert {'sizes', 'strides', 'ratios', 'scales'} <= set(config['anchor_parameters']), \
          "Malformed config file. Verify that it contains the following keys: sizes, strides, ratios and scales."
  
      return config
  
  
  def parse_anchor_parameters(config):
      ratios  = np.array(list(map(float, config['anchor_parameters']['ratios'].split(' '))), keras.backend.floatx())
      scales  = np.array(list(map(float, config['anchor_parameters']['scales'].split(' '))), keras.backend.floatx())
      sizes   = list(map(int, config['anchor_parameters']['sizes'].split(' ')))
      strides = list(map(int, config['anchor_parameters']['strides'].split(' ')))
  
      return AnchorParameters(sizes, strides, ratios, scales)
  
subject: Remove spaces to pass flake tests.