old_contents: import io
  import re
  import sys
  import os
  
  librs_version = ''
  if len(sys.argv) < 2:
      print("Error! Usage: find_librs_version.py <absolute_path_to_librealsense>")
      exit(1)
  
  librealsense_dir = sys.argv[1]
  rs_h_path = os.path.join(librealsense_dir, 'include/librealsense2/rs.h')
  print("Extracting version from: ", rs_h_path)
  with io.open(rs_h_path, 'r') as f:
      file_content = f.read()
      major = re.search(r"#define\s*RS2_API_MAJOR_VERSION\s*(\d+)",file_content)
      if not major:
          raise Exception('No major number')
      librs_version += major.group(1)
      librs_version += '.'
      minor = re.search(r"#define\s*RS2_API_MINOR_VERSION\s*(\d+)",file_content)
      if not minor:
          raise Exception('No minor number')
      librs_version += minor.group(1)
      librs_version += '.'
      patch = re.search(r"#define\s*RS2_API_PATCH_VERSION\s*(\d+)",file_content)
      if not patch:
          raise Exception('No patch number')
      librs_version += patch.group(1)
  
      print("Librealsense Version: ", librs_version)
      outfile = os.path.join(librealsense_dir, 'wrappers/python/pyrealsense2/_version.py')
      print("Writing version to: ", outfile)
      with open(outfile, 'w') as f:
          f.write('__version__ = "{}"'.format(librs_version))
  
new_contents: import io
  import re
  import sys
  import os
  
  librs_version = ''
  if len(sys.argv) < 3:
      print("Error! Usage: find_librs_version.py <absolute_path_to_librealsense> <output_dir>")
      exit(1)
  
  librealsense_dir = sys.argv[1]
  output_dir = sys.argv[2]
  
  rs_h_path = os.path.join(librealsense_dir, 'include/librealsense2/rs.h')
  print("Extracting version from: ", rs_h_path)
  with io.open(rs_h_path, 'r') as f:
      file_content = f.read()
      major = re.search(r"#define\s*RS2_API_MAJOR_VERSION\s*(\d+)",file_content)
      if not major:
          raise Exception('No major number')
      librs_version += major.group(1)
      librs_version += '.'
      minor = re.search(r"#define\s*RS2_API_MINOR_VERSION\s*(\d+)",file_content)
      if not minor:
          raise Exception('No minor number')
      librs_version += minor.group(1)
      librs_version += '.'
      patch = re.search(r"#define\s*RS2_API_PATCH_VERSION\s*(\d+)",file_content)
      if not patch:
          raise Exception('No patch number')
      librs_version += patch.group(1)
  
      print("Librealsense Version: ", librs_version)
      outfile = os.path.join(output_dir, '_version.py')
      print("Writing version to: ", outfile)
      with open(outfile, 'w') as f:
          f.write('__version__ = "{}"'.format(librs_version))
  
subject: add output folder parameter to find_librs_version.py