old_contents: from subprocess import Popen, PIPE
  import os, sys
  
  pyver = sys.version_info
  
  #----------------------------------------------------------------------------
  # Get version string from git
  #
  # Author: Douglas Creager <dcreager@dcreager.net>
  # http://dcreager.net/2010/02/10/setuptools-git-version-numbers/
  #
  # PEP 386 adaptation from
  # https://gist.github.com/ilogue/2567778/f6661ea2c12c070851b2dfb4da8840a6641914bc
  #----------------------------------------------------------------------------
  def call_git_describe(abbrev=4):
      try:
          p = Popen(['git', 'describe', '--abbrev=%d' % abbrev],
                    stdout=PIPE, stderr=PIPE)
          p.stderr.close()
          line = p.stdout.readlines()[0]
          return line.strip().decode('utf8')
  
      except:
          return None
  
  
  def read_release_version():
      try:
          f = open("RELEASE-VERSION", "r")
  
          try:
              version = f.readlines()[0]
              return version.strip()
  
          finally:
              f.close()
  
      except:
          return None
  
  
  def write_release_version(version):
      with open("RELEASE-VERSION", "w") as f:
          f.write("%s\n" % version)
  
  
  def pep386adapt(version):
      # adapt git-describe version to be in line with PEP 386
      parts = version.split('-')
      if len(parts) > 1:
          parts[-2] = 'post'+parts[-2]
          version = '.'.join(parts[:-1])
      return version
  
  
  def git_version(abbrev=4):
      # Read in the version that's currently in RELEASE-VERSION.
      release_version = read_release_version()
  
      # Try to get the current version using "git describe".
      version = call_git_describe(abbrev)
  
      # If that doesn't work, fall back on the value that's in
      # RELEASE-VERSION.
      if version is None:
          version = release_version
      else:
          #adapt to PEP 386 compatible versioning scheme
          version = pep386adapt(version)
  
      # If we still don't have anything, that's an error.
      if version is None:
          raise ValueError("Cannot find the version number!")
  
      # If the current version is different from what's in the
      # RELEASE-VERSION file, update the file to be current.
      if version != release_version:
          write_release_version(version)
  
      # Update the ev3dev/__version__.py
      with open('ev3dev/version.py', 'w') as f:
          f.write("__version__ = '{}'".format(version))
  
      # Finally, return the current version.
      return version
  
  
new_contents: from subprocess import Popen, PIPE
  import os, sys
  
  pyver = sys.version_info
  
  #----------------------------------------------------------------------------
  # Get version string from git
  #
  # Author: Douglas Creager <dcreager@dcreager.net>
  # http://dcreager.net/2010/02/10/setuptools-git-version-numbers/
  #
  # PEP 386 adaptation from
  # https://gist.github.com/ilogue/2567778/f6661ea2c12c070851b2dfb4da8840a6641914bc
  #----------------------------------------------------------------------------
  def call_git_describe(abbrev=4):
      try:
          p = Popen(['git', 'describe', '--abbrev=%d' % abbrev],
                    stdout=PIPE, stderr=PIPE)
          p.stderr.close()
          line = p.stdout.readlines()[0]
          return line.strip().decode('utf8')
  
      except:
          return None
  
  
  def read_release_version():
      try:
          with open('{}/RELEASE-VERSION'.format(os.path.dirname(__file__)), 'r') as f:
              version = f.readlines()[0]
              return version.strip()
      except:
          return None
  
  
  def write_release_version(version):
      with open('{}/RELEASE-VERSION'.format(os.path.dirname(__file__)), 'w') as f:
          f.write("%s\n" % version)
  
  
  def pep386adapt(version):
      # adapt git-describe version to be in line with PEP 386
      parts = version.split('-')
      if len(parts) > 1:
          parts[-2] = 'post'+parts[-2]
          version = '.'.join(parts[:-1])
      return version
  
  
  def git_version(abbrev=4):
      # Read in the version that's currently in RELEASE-VERSION.
      release_version = read_release_version()
  
      # Try to get the current version using "git describe".
      version = call_git_describe(abbrev)
  
      # If that doesn't work, fall back on the value that's in
      # RELEASE-VERSION.
      if version is None:
          version = release_version
      else:
          #adapt to PEP 386 compatible versioning scheme
          version = pep386adapt(version)
  
      # If we still don't have anything, that's an error.
      if version is None:
          raise ValueError("Cannot find the version number!")
  
      # If the current version is different from what's in the
      # RELEASE-VERSION file, update the file to be current.
      if version != release_version:
          write_release_version(version)
  
      # Update the ev3dev/version.py
      with open('{}/ev3dev/version.py'.format(os.path.dirname(__file__)), 'w') as f:
          f.write("__version__ = '{}'".format(version))
  
      # Finally, return the current version.
      return version
  
  
subject: Use absolute paths in git_version.py