old_contents: VERSION = (0, 9, 0, "a", 1) # following PEP 386
  
  
  def get_version():
      version = "%s.%s" % (VERSION[0], VERSION[1])
      if VERSION[2]:
          version = "%s.%s" % (version, VERSION[2])
      if VERSION[3] != "f":
          version = "%s%s%s" % (version, VERSION[3], VERSION[4])
      return version
  
  
  __version__ = get_version()
new_contents: import os
  
  
  VERSION = (0, 9, 0, "a", 1) # following PEP 386
  
  
  def get_version():
      version = "%s.%s" % (VERSION[0], VERSION[1])
      if VERSION[2]:
          version = "%s.%s" % (version, VERSION[2])
      if VERSION[3] != "f":
          version = "%s%s%s" % (version, VERSION[3], VERSION[4])
          dev = os.environ.get("PINAX_DEV_N")
          if dev:
              version = "%s.dev%s" % (version, dev)
      return version
  
  
  __version__ = get_version()
subject: Support development versions using an environment variable