old_contents: from __future__ import print_function
  import sys
  
  __version__ = '1.5'
  
  def check_importability():
  	try:
  		import cutadapt._align
  	except ImportError as e:
  		if 'undefined symbol' in str(e):
  			print("""
  ERROR: A required extension module could not be imported because it is
  incompatible with your system. A quick fix is to recompile the extension
  modules with the following command:
  
      {} setup.py build_ext -i
  
  See the README file for alternative ways of installing the program.
  
  The original error message follows.
  """.format(sys.executable))
  		raise
  
new_contents: from __future__ import print_function
  import sys
  
  __version__ = '1.6dev'
  
  def check_importability():
  	try:
  		import cutadapt._align
  	except ImportError as e:
  		if 'undefined symbol' in str(e):
  			print("""
  ERROR: A required extension module could not be imported because it is
  incompatible with your system. A quick fix is to recompile the extension
  modules with the following command:
  
      {} setup.py build_ext -i
  
  See the README file for alternative ways of installing the program.
  
  The original error message follows.
  """.format(sys.executable))
  		raise
  
subject: set version to 1.6dev