text: import click
  import pandas as pd
  
  
  @click.command()
  @click.argument(
      'exp_table',
      type=click.Path(dir_okay=False, exists=True),
      required=True
  )
  @click.argument(
      'cutoff',
      type=click.FLOAT,
      default=1
  )
  def main(exp_table, cutoff):
      exp_df = pd.read_table(exp_table, index_col=0)
      ubi_genes = exp_df.T.min() > cutoff
      ubi_genes = ubi_genes[ubi_genes].index
      for each in ubi_genes:
          print each
      
  
  if __name__ == '__main__':
      main()
  