title: Getting Python error "from: can't read /var/mail/Bio"
body: <p>I am running a (bio)python script which results in the following error:</p>
  
  <pre><code>from: can't read /var/mail/Bio
  </code></pre>
  
  <p>seeing as my script doesn't have anything to with mail, I don't understand why my script is looking in /var/mail.</p>
  
  <p>What seems to be the problem here? i doubt it will help as the script doesn't seem to be the problem, but here's my script anyway:</p>
  
  <pre><code>from Bio import SeqIO
  from Bio.SeqUtils import ProtParam
  
  handle = open("examplefasta.fasta") 
  for record in SeqIO.parse(handle, "fasta"): 
      seq = str(record.seq)
      X = ProtParam.ProteinAnalysis(seq)
      print X.count_amino_acids() 
      print X.get_amino_acids_percent() 
      print X.molecular_weight() 
      print X.aromaticity() 
      print X.instability_index() 
      print X.flexibility() 
      print X.isoelectric_point() 
      print X.secondary_structure_fraction()
  </code></pre>
  
  <p>what is the problem here? bad python setup? I really don't think it's the script.</p>