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Csv_to_fasta.py

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+#!/bin/python2.7
+# coding: utf-8
+
+# Simple script to convert csv file to fasta fromat
+
+# import librarys
+import pandas as pd
+import sys
+import os.path
+
+# create file name for fasta file
+filename = sys.argv[-1]
+outname = filename.split('.')
+outname1 = '.'.join([outname[0], 'fasta'])
+
+# read data (csv file)
+df = pd.read_csv(filename, header=None)
+df.columns = ['id', 'seq']
+
+# create fasta file
+fh = open(outname1, 'w')
+
+# function for conversion to fasta format
+for i in range(0,len(df)):
+	n = df.at[i,'id']
+	seq = df.at[i, 'seq']
+	fh.write(">%s\n" % n)
+	fh.write("%s\n" % seq)
+fh.close() 

Fasta_to_csv.py

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+#!usr/bin/python2.7
+# coding: utf-8
+
+# simple script to convert fasta file to csv file
+
+# imports librarys
+import sys
+import os.path
+
+# create file names
+filename = sys.argv[-1]
+outname = filename.split('.')
+outname1 = '.'.join([outname[0], 'csv'])
+
+# open fasta file
+f=open(filename, "r")
+
+# list fasta file
+l=list(f) 
+# create csv file
+fh=open(outname1, "w")
+
+# function converting fasta to csv
+for i in range(0, len(l)):
+	p_zn = list(l[i])[0]
+	if p_zn == ">":
+		k = ''.join(list(l[i]))[1:-1]
+		print k
+		fh.write("%s," % k)
+	else:
+		k = ''.join(list(l[i]))
+		#print k
+		fh.write("%s" % k)
+fh.close()
+print 'done'