old_contents: from scout.models.hgnc_map import Exon
  
  
  def build_exon(exon_info, build='37'):
      """Build a Exon object object
  
          Args:
              exon_info(dict): Exon information
  
          Returns:
              exon_obj(Exon)
          
          "exon_id": str, # str(chrom-start-end)
          "chrom": str, 
          "start": int, 
          "end": int,     
          "transcript": str, # ENST ID
          "hgnc_id": int,      # HGNC_id
          "rank": int, # Order of exon in transcript
          "build": str, # Genome build
      """
      try:
          ensembl_exon_id = exon_info['ens_exon_id']
      except KeyError:
          raise KeyError("Exons has to have a chromosome")
  
      try:
          chrom = exon_info['chrom']
      except KeyError:
          raise KeyError("Exons has to have a chromosome")
  
      try:
          start = int(exon_info['start'])
      except KeyError:
          raise KeyError("Exon has to have a start")
      except TypeError:
          raise TypeError("Exon start has to be integer")
      
      try:
          end = int(exon_info['end'])
      except KeyError:
          raise KeyError("Exon has to have a end")
      except TypeError:
          raise TypeError("Exon end has to be integer")
  
      try:
          rank = int(exon_info['rank'])
      except KeyError:
          raise KeyError("Exon has to have a rank")
      except TypeError:
          raise TypeError("Exon rank has to be integer")
  
      try:
          exon_id = exon_info['exon_id']
      except KeyError:
          raise KeyError("Exons has to have a id")
  
      try:
          transcript = exon_info['transcript']
      except KeyError:
          raise KeyError("Exons has to have a transcript")
  
      try:
          hgnc_id = int(exon_info['hgnc_id'])
      except KeyError:
          raise KeyError("Exons has to have a hgnc_id")
      except TypeError:
          raise TypeError("hgnc_id has to be integer")
  
      exon_obj = Exon(
          exon_id = exon_id,
          chrom = chrom,
          start = start,
          end = end,
          rank = rank,
          transcript = transcript,
          hgnc_id = hgnc_id,
          build = build,
      )
  
      return exon_obj
  
new_contents: from scout.models.hgnc_map import Exon
  
  
  def build_exon(exon_info, build='37'):
      """Build a Exon object object
  
          Args:
              exon_info(dict): Exon information
  
          Returns:
              exon_obj(Exon)
          
          "exon_id": str, # str(chrom-start-end)
          "chrom": str, 
          "start": int, 
          "end": int,     
          "transcript": str, # ENST ID
          "hgnc_id": int,      # HGNC_id
          "rank": int, # Order of exon in transcript
          "build": str, # Genome build
      """
      try:
          ensembl_exon_id = exon_info['ens_exon_id']
      except KeyError:
          raise KeyError("Exons has to have a chromosome")
  
      try:
          chrom = str(exon_info['chrom'])
      except KeyError:
          raise KeyError("Exons has to have a chromosome")
  
      try:
          start = int(exon_info['start'])
      except KeyError:
          raise KeyError("Exon has to have a start")
      except TypeError:
          raise TypeError("Exon start has to be integer")
      
      try:
          end = int(exon_info['end'])
      except KeyError:
          raise KeyError("Exon has to have a end")
      except TypeError:
          raise TypeError("Exon end has to be integer")
  
      try:
          rank = int(exon_info['rank'])
      except KeyError:
          raise KeyError("Exon has to have a rank")
      except TypeError:
          raise TypeError("Exon rank has to be integer")
  
      try:
          exon_id = exon_info['exon_id']
      except KeyError:
          raise KeyError("Exons has to have a id")
  
      try:
          transcript = exon_info['transcript']
      except KeyError:
          raise KeyError("Exons has to have a transcript")
  
      try:
          hgnc_id = int(exon_info['hgnc_id'])
      except KeyError:
          raise KeyError("Exons has to have a hgnc_id")
      except TypeError:
          raise TypeError("hgnc_id has to be integer")
  
      exon_obj = Exon(
          exon_id = exon_id,
          chrom = chrom,
          start = start,
          end = end,
          rank = rank,
          transcript = transcript,
          hgnc_id = hgnc_id,
          build = build,
      )
  
      return exon_obj
  
subject: Make sure exons have str in chromosome names