biopython

I have a DNA sequence and would like to get reverse complement of it using Python. It is in one of the columns of a CSV file and I'd like to write the reverse complement to another column in the same file. The tricky part is, there are a few cells with something other than A, T, G and C. I was able to get reverse complement with this piece of code: def complement(seq): complement = {'A': 'T', 'C': 'G', 'G': 'C', 'T': 'A'} bases = list(seq) bases = [complement[base] for base in bases] return ''.join(bases) def reverse_complement(s): return complement(s[::-1]) print "Reverse Complement:" print

I have no idea what could be the problem here: I have some modules from Biopython which I can import easily when using the interactive prompt or executing python scripts via the command-line. The problem is, when I try and import the same biopython modules in a web-executable cgi script, I get a "Import Error" : No module named Bio Any ideas here? Here are a couple of possibilities: Apache (on Unix) generally runs as a different user, and with a different environment, to python from the command line. Try making a small script that just prints out sys.version and sys.prefix , and compare the