ReverseComp.py

import sys

def reverseComp(text):
	reverseStack = []
	for i in range(len(text)):
		if text[i] == "A":
			##text.replace(text[i], 'T')
			reverseStack.append('T')
		elif text[i] == 'T':
			#text.replace(text[i], 'A')
			reverseStack.append('A')
			
		elif text[i] == 'C':
			reverseStack.append('G')
		elif text[i] == 'G':
			reverseStack.append('C')

	reverseComplement = []
	for i in range(len(reverseStack)):
		reverseComplement.append(reverseStack.pop())
	print("".join(str(x) for x in reverseComplement))
	
file = open(sys.argv[1], 'r')
text2 = file.readline()
#print text2

reverseComp(text2)

#reverseComp('AATAGTTGGACAAAATGGTTTGGCATGTGGTCCCTGCCATCCGTGGACAGCAGTACGATTCAGAGCTTACAATTCCTATACTAATGTGTCATAGAGTAAACAGCTTTATCACACCCTGTACGTGCTTTATGCAGCAAGAATTTTTCATTTACGACATTCCATCAGCAGGATAAATACTACAACTACGCCAATGGGACAATTGGCGTCCTGACGGAATTCACACGTTTCCTCACTACAGCCTTTTGATGAAGTTATAATACCGAGTTCTCCACGGTGATAGCTGCCTCCAAGACTATCGGACGTTGGCAACTTAACCTACAAATTTAGGGCTCAATTGCCGACGTATAGCCTATCTTCTGGCAGACATGCCGGCCATGGTTGTTAACAAGCCCTACCGAAGTAATGGCTGTGGTCCAGCAAGTGCGAGTGACCATCCTCCTCTAAGGCCAGGCATAAACGAATACATATTTCACATAAGTTCCCGTCCAGCGCGATATTGGAGAGCGTACTAGGACGAAAGTGTCCGGTGGCATATTTACCGGGGTCGCCACCTGGTAGATACAGACGGCATATTCCCGTGATCCCGCTTAAGAAGGATCTCTTGTATATACTATGTCAACGGTAGAAGTCCTGGCATGAAGAAGTGGATCGGACGCCCACATCATCCAAACGGCTTGGGCGGGTCCTGAGACATTTACATAGCTCCAACATAATAGTCTCGTGACATCGATACCCACGGCACCAAGGAGCCTCGAGTTTTAAGGGGTCTTAACAGTATTAGACCGGTGCTACGGTGAGCCGGAGCCGAATGGAGAGGAGTCAAATTTGAAACGTCATGTCAGACTAGAAGCCGTGCATACGCTTCTCACGTACCACCGTGGTGGCGGAGCAGTCTAGCGATTATCCTCTCGCTGTACGAAATGCGCTTAGTTAACGATTACGCCCCCCCGGTCTTCTGCGTGGAAGTTCCTACACACCTGGCCCTCGTACCAGGGAACCGCTGCCATCCTGTGCAGGCGCGGGGCGGGGTCCAGTCCGTTGTTAATATATTGGTACATATCAACAGTAGGATATCCCGCGCTAGAAGAACCCCTAAATGCTCCCCGTTCTTATTGGTATGCCCGGATGCTCCGCGCGGCCTCGCTCACACATCCGTTCTTCGTGTCAGGCTATGTAGAGTCATTCCCGTTCCACGATTCTCTCAACTTTGACAATCTTCAACGGCGGTTGAGCCCTTCGCTATGGAGTACGCGCCCGTCCTTTAGGGTCGCGGGTCGCGCTTTAATTCTTACTTGCCGAATCATGGTATAGGCCGGCGCCGAGTCGCTACCTCAGCCTAAATCTAGGCTCTCCCCTATGTCCCTGAACAACAAACCGGATAAGGCAAACCGACCTTAGCACCGAATATTGTGTGTTCCGTCTAGTCGCAAACAGTATATAAGTGATGCCGGCATGAAAGCGCACAACCATAATCTCTTGTCGTTCGCGCAATTTCAGGCCAGTTGGCGTGCGGCTGCGGGAAAACGACTGTGCATCCACTTCCCTAGTACCCGATAGCTTCCGGCCTGACTCGGTAGGTATCGGCCAGTACTCCGTTAGTAGAAACTCATTCACATAGAGTCCTGACGATAGCACTTTTCTCTGTCCTTCTCGGGTATGATCAGATACACAGAATACAAAAGAGCGTGACATCTCTCATACCCGGGATGTATTGCGGGTTGAGGCGCAGATGTTGATGGATTAATTAACGAGCAGTGGCTAGAAAAAGTTGTGTGCCGCCCGACGAACGAGGACGTGCTTCAACGACCGGGGATAGCTCACCTAATCTGACTAGCGTCGACGATACCTTTCGGCGCGGCTTAAACGTAAGAGATCTGGGCCTCGCGTTACGAGACAGCGAACGGGGTTGAGAAAACTTTAGTGTGGGGTCATAAATGCCATGGGATATGTGTATGTCTCCGGACTGTTCATAGATTCGTGCCCCGCTCGCATCGGCTTCTTATTTCTGGGCTACGTATCAATGCTTGGGAGCTTGGTAAGCAACCTGTCTTGTCCATTAAAGCGAGATGGGCCGTCCTTTTTGTTGTTACTTTTCACAAGATTTGTCTACGAGTATCCCCACCGACCATCGCGAAGGTTTCGCACTACGTTTGCCTGGCCTGTTTCTCTCAATTCAGTTTTCGGGACACGGATCAATCGGGATTGTGAGCGATAACAGGGGACTTATCCTTCGTAAGATTGATTGGGACTAATGATGTATTCGACCGGCGCACATTTTCGTAAATTGGCCTCCGCGTTTTGAATCAAATTCGCCTCTCCTTTCAACGGTTGGCGTCTTCGCATACTAGACTCAACACAGTCCACAATATCATCACGTGGCGAACTCGATCGCTATACGGTCGAACGCGGCCGCTGTTATACAATAACTTGTTACAGCGCTCATACCGAGATAGGCATACTACGCGCGCGGCTGGCGTTTCGTTCGCGGGTTTTACTTCCCAACTTGAGCAGACTCCAATTGTACTCCTCATTATGGAGTGTATAGGGCTCGGTCCCTTTTGGACACGCGAAGCGGAGGCGCAAAGCGCACCGTTTAGTCATCTTGGTCTGCATCCATTAGAATATGACTTGGCTTAATTACAAACACCCATGAAGTCAGCGAAGGCGTCTTACTAGAGCCGCCATAGGTGGGAAGTATTTCAAACTAATTGTAACAGTTAATCCTTGTGTAATATCCTGACGCGTTAACGCGTTAAAGACTACAGGAATCATTCGTATCAAAGACGTAGTAAAGCCGTGCCCTAGAGACGCAATTGTTAATGTGATCTTTGACTGTAACAGTAAATTCTCGGGGCCCTGTATGCAACTCCGGCTGAGATCGGGCGATCGGGTTCCATAGCGCTGGTCGCATTTGATCATTGCCATACATGGCGTCCTAGCAGCCATCCTCACTAGCGGGGAGTCAAAGAAGAGAAGTCAGACGCTGGGGGTTGGGTAGATGATTACACGTTGATGAAGTCTCCCGCATCATATATGCTATTCCGCATTAGTGACGACGGGCCATTTTATGGCAAGTTTTACGGACATTGAAACCGCGGTGGTTGCCACAGCTGTGCGCTACTTCTTAATGGCCAGACCATGCCGACTACGGCCTTGTCACAAGAGTCACTCTTCGGGTCGGCAGCCCATTTGTCTCGGGGTGCCGCGGCGCAACTCTGTCCTCACAACGGCCGTGTGGGAAAGGTCCCAACTTCGCTCTTCCCCGTTCAAGGCCACACTCCTACTGCCCCTGACAGAGGCAAACCGACGACTGCTGGGACCCGGCTGTTTATTCCACCGGAAAACTCGTGATTCGGATGTCTCTACGAACACCGGTAAGTGCGTCCTAATTTAGGCCTACATGGCAACATATGCTCCGCTATCGTCTGTAGGAACCTTTCTACCGGGGGCAGAGGGCAAATCACTGTACTCAGCAACCCTTCCCTTCTCTTGTCTCGGCAATATTCCACTCGCTAATAAGTGCACGGAAACTGCTTGGGCCAGCGTTGTTTTAGGGTAACTTCGTTGGGGGACACAGAAGAAACATTGAGATTCTATTTCGACGGGAAGGGATTAGCGCACGTAGGCCTCAACTGTGGGTTAACTACCGTCTGACTCGCTATCGGTAACCTGTGAGTGTGCGGTCGGAAGTTTATACGAAGGGCTTTGAGGGTCCCCCTGGTCCAAAGGGATATATGTTTCCTATACGGACCGCTTGGATAGCCGTCGGATAGGATCGTGGATTGCGTCCCCGAAGGGCTAAGTCCGCTAGGAACATCCCTTGTATCGGCAGGCTGAAATAGATGCGGGGGAATCGTCTGGGAGCCTCCTGAAGCACCGGCTGCGCGGGAAGCAGTAGATTGTATAAGAGCTATGCCTACCATAGAATAATGCGCGCGTACCACCGCTCATTGTGTCACTGAAGCCCTGTAGAACTATGCCCGTCGTAATACAGTAGGAGTCTCTTGGCTGAATCTGTTTGACCTTGCTGGTGTGGTGCCAAGCTCATTAGTGTTAAAGGCGAAAGATCCGAGATGAATCCGCGAATAGCTGCTACCTGCCGCCCGATGAGTGCCAATTCAGAACCGGTATCCTCTTACTCAAACGACAATACGCTAACGCGAACACGTTACTAATTCTCTGCGCAGGTGCCCTAACTGTATACAACCACAGTGCCTACCTATCCTGCCGGGCTCGTGAGGTCAGGACGAGTGCATCGGCTCAGACACAGATCTGCACCTGCACCCGTCTGCCTTTCGCACGCAATTTTAATTGTCCTGCCCCCCACCACCTCTGTACTGGTACTACATAAGCTTGATGTGCAGTGCCTCAGTGCCCGTCGCCTACGCTAGTCAAAGCGAACTCAGCCCCACTATGTTTCGGAAACCAGATCGATAGATTCAGATCGTCTGCCTAGAATCGTTGTTGTACATCTTTCTTGTCGACCTTGTTCACTTTTAACTCGAGCTGTAGTGCACAGAGGTGAATATGCGTTATTATTGCGGAATGGGTAGGTCAGCTTAGTGGTCGGGGCTAAGAAAGGGTATGTTAATCACCCCTAGCGCCAGCTTGGGGTCACTAGTATCTTGGTTCTCATTTCATGGGCGACTGGCTTGCTGTTGATATCCGAGCTCGCCACATTTGGAAGGATGGAAAGTTTCGCAGGGTATGAGGTAAAATCCTGTTTGCATCGTTACTCATTTATTTTGACCCAGGGGAGTCATGTGAAACGGTAAATTAACCGTCGATAGAAGTCCAGAACATGTACCCTAATCGATCTCAATGACTGTGAGCCTGGCAGCAATCCGTCGACTTTTTAGAGGAGATTCGGCAGCAGGTGTTTGTCCCTCGGGCCGATCCGGGCGGTCGAAAATATTGTGTCCAAGGTTAACTTCTAGGTACCTTTTTTATATGTGTGCGCGTTGCGTACTCGCGTCTTGGTGAGATGTCGTCTGGCGTGTATGACCTAGTCGTACTACCGATTCTTGCCCATACGCATAGGCTTTTACTCGATAAGCTTTTCGTTGACCAAGGTACGGAACTGAGGTGTTCCGAACGCTAGTTACGGAGGGCCACTCCGGGAGACCCTCTTGAATACCAGGTTATATATTCTTGGCGTATGGTATTAACTTTTGACAATCCGGGAAAACAAACCTGTACGAGTAATACCACGTGCTTTGCTTTCGAATTACTCGAATCGTTGGAGTCTTCTTCCATGCAGGATGACTTGTTATTAAATACTAGTTGACAAATCTTAACAGGAATCAAGGGTGTCCTGACACTTGTCGGCTCTGTTGACTAAGCGTAACGCGTGCGCGGGGACCCATGTCCCCATATTTTTAGTCAGTTAACCGCAGTGTGCTACTACACTACTATCCTGCTCAGCCATCAAACGCGGACAACGTCATACCGGCACGACTAGCAAGAAACGGATATTTTGAAGGATTTGGTCCACATTGATTGCTATATCAAACAAGGATAAAGTGTTGGTTCATTTGGTCCCACTCCGTGGAAATAGCCGGATTAAACCTTTAGAACGACCCGACCGTCGACAACCTGTGGCCTTCTATACTGTACCATGAAGGCTTGAGCGCCATATGGAAGTGATACACGGTTTCCGATGCGTATCACGGAAGAGGAATAGCCCATTTGTTAACACATCCCAACCACGCTCAAATCCGACATGTCTATCCCATGAGATTTCCATGGACAACCAAGGTGTCTACGGTTCGAAGTTTAGACATTGACAGCGTAGTAGGATAAAATCTCGCCGTCTGTTAATAAACGCACCCCCCCATATACCGACAGATCACCTTTAGGAGCCACAATACACGCTCTGAGTTACCTAGCAACTGAGTTGGTCCATAGACCGGGCGCACTAATAAGATATCCCTCAGCTCGTCAGCGTTGACTTTTCAGCATACGTACTGATACTGACCATTGCAGGGAATAATATCACCGCAGTGTTGTCGCAATCGTTTGATCATTTTGATATATTTAGTGACCTATCTCATTTCAAAGGTCGCAGGTACTTTCTGGTAAGCGCCGGTCCTTTATTATTGTGAGACGTAATTCAGATCCAAAAAGAAGGGTATGCGCCAGTTGCGAGAGGTACATCATTGTAAGGAATTGTTGGAGGAGGAAAGAGTTTCGGCATTCATTATGGATTCGTAAAGAGTGAGGATCAAGTAAGGTGCTCATATTTGACCAGGTACTCTGTCAACAGCGAATAAGGTCCGTAGTCGTCCGATTCACATGCGGTGCATCTAAGCACAGCTGCTCCTCACTGATTCACTCCACCGGTATCTGATGTAGCCGCTTCATCGGGTGCTTCTGCTTAATTCGAAGGCTATGGATTGTTATTGCCCTACGATGCAACCCAGTGTATAAGTTACCGAAATACCGCGGTTAGATAATTAGCGGCGTCGGCGTCATACTGATGCGTTAGGTTTTTGCAAACACCTCGTCGTCCGTGAGTTCGGATTATGAACATGAAACTGTAATGATGTTCAAGCTACGTGTCTATGACGGAATTGTCAATCACCGGCCTTTTTCCTCATTCTGCTGAGTATTCCTTCCAATGCAGCGGGTCTAGACATGTTTCCACGGCGCGGAACCACGATCGCCATCAAAGTCCGTTAACATATTCATATGCTACTTGCGGCGAGAATATGTCCACATTTTCAAAATGACAGGTAGATAAAGAGCAGCTTGAAGGATGTTCCGACGTGTAACAATGTCAGAGAACCCCGTACGGATCGTCATTTGGTTTATAAGGGCATCGTAAGAAACTGGGTAGAGGGCGTAGAGACATACAGCTGCTTTGCGTAGCCGAACGGGGCGATGTTCGGACCACCGGTCTTCAACGCGGCACCTGTCTTCTAGAACATCCACCATTCGTTCAGTGTAGGAGGTTTACCGGGTGTCTAGGACTGATTCCTGTGTGACACCAACCAGCTCGACTGGACGAGAGACTGCGGCCTGGTCGGTCTTGTCGTGGCTCTCTAAATTAACGGGTAGTAACCACCAGTGGGGCTGATCGTCTATAAATGTGGTATAGCGTGGATTTCTAGTCCCGTAAATCAAGATGGCACAAACAATGGTGCACTATCCACAATGTCGTGGACATGCCAGGTCCCAAGAGACGCTTTTTGCATCTGAATAGTTCTGATCAACAAGCTCATAGTTGATACGACGTCGTGTGATGGGTCTAGTGCGTTGTGCCGCAGGCCTCGTGTCCTGTCACGTCCAGTGTAGTGTACACAGATGGATTGCGCTAACAACGGAAGTCTGGCTGCGGCGGGCAGGTGCGCACTGCATTGTCCACTCAGGGATAGCTGGCACGTTTTTCTCTCTCCAAAACCCTTGCGACCACGCCGACCCGATAGTCAATACCGATTGCGGCTCCTTAATTATGTCATCTAGCGGGAAAAAGCAGTATGGATCGCTTTTTCTACGTTGGGATCGGGGCCGGGCCGCCGGTATCGACCCCTGGCCCTATGTCCCCGCCATCGCAGTGTAAAAGTCAAGGTGTGAAAGTTATCTGGGAGGGAACCGCTGCCTGATGTTGAGAACGTGCCCGCGTATTCGATTCGGGAACTCGTTACTACGTCGCGTCACTGTTATGTAACTGTCTATGGTTCCCGGCTCCACTGAGCAAAACAGCTGGAAACCCCGATGTTATCCATTCATTGTGTTCGATGGTCACTACCTCCCGCGTACTCGCTCCAACAGAGGCCAGGGAAGGTCTAACTCGCCCGTCGCATTACGCGGTCGACTATCGAGCCTGAAACAGGATTAGTCAAATATTCCCCTCTAAGCTTACCTATGGCTTAACCTAGGGTGTGGGACATACCGGGCACAGGTTTGCTGTATATAGAGATACTCGGAGCTTTTGTGGCTCAGATCTAGTGCTATAGCGCTCACTTGGTGTGAAGTGATACACGTGCATAGGTCTAGGAAAGGTGGAAAGTTTCTTATATAAATCCCCTCCCCTTACCGCAAACAGCTACAGCATTAGAGCCCAAGGGACGCACCGGTATGTATTTGCTCCTAATGGCCATCTGCTGGTTCCTTAGTTCATCGAAGTGTCGACGTCCCAACACTGGAATCCTCTCAATCAGCGGCACAAGATGTGCACGCTCCCACACAACCAGGAATACTCTCAGTACGCACGGCAGTCTTCCGCCGGTATACTCTGTGGGTAACTATACATACCATCACGGAATCCCCCAGTGAGCAAGTAGCCGCATTTACGTTCACACGAGATAAGGATTGCAGTAGTAAGCAGTGGTGACTGATTGGAAGTTGACTACTCAGGGTCGTGTGTCCAAGAGGGCGAGTACTAAAGTCACCGTAACGCGGAGGCCAGCACTCTGGCAATAGAGGGGTGGAGCTTTTACGTATCGCAGCTCAAAACAGCTGAAGAACGGTGTGTAATCGACGGCGAAAATCCCCGTTTGTGTGTGAGGACCACCGAGGCAGCGAAGTTATAGCTTTGGATGGCGCGCAGCATGGATGGTTAAACTTTTGGCATCCTGGGGATCATTGGAAGATAGTTATCGACGACTCTAGCTCAGAGCCAATAAATTACGATCCGGAGGGTACAGGATTCCCGACCCACAGACAAGGGCCTCGACTTGCTCCACCGGGAGCGCGATACTGCTGAGTCCGGGCACCTACGCGTAGCCAAAATGCCCCACGAGCCGGAGCTGTTGAATTAGAGCAGTAGAAAACAATCCCCAAGATGTTAAAAATTTGGGTGGCTATCCAACTACGTTAGGAGTTATCATAAGGCGAACTCCTTGGAAAGGAGTTCGAGTCTGAATGTCCCTCGTTGTTCGTACAAGTCATCTCGTGGCACGGCGTGACCAACGAGGAATCTTGGCAATGTATCGGAAATGAAAATTATTGAGCCGGTCCGCTTTATAGAGGACGCGTCTCTCTGGTTTTTAAAAAGGACTGCTTCTTCGTGCTACACGGGGATATTGACTACGACTTGTGGTCTAGAAGTATCGCGGATTTCCATGTACATGCCGATGCGACCAGGAGCGACGGTCAGTTGCTGCGAGAAATTTAACTGGACCACGTCAAACTACAATTTAATCTTAGGGACGCAGCTTGCTACGTCCGACGAGCGGGATAAAGTATTAATATTTTTTAGAACCGGCTGTTACGGCACCATTGTTACTTGGATCGCCACCTCCATTGTTGATTAGGTTAATCCTGATGCTTAATCCGTCTGGTAGACTACTCGTCAAACGGTGAAGCGTAGGAGGTATTCTTTCACCGCTCTCTCCCTAGGGATGAACCAGATATAAGGAAGACCGTGGAAGTTTAACCGAAGGACATAAAATGACATACACATCGTATGAACTACTGCCAAATTACCCTGAACGCAGGGTGGGTTGAAAGACGGATGTTCGGTCTAAGTAGGGGGGTCGTACAAGGAAGCCTTTTTGGTAGGGCGAATAGAGCATGCAGGGGTGCAGTAAGTGGCCACAGAGGGGAACCGGGCGTCAAATAAATCTAACACTTCTAGGTTCACAATTAAGAACACTCGTTGTCAACGGCTCTGATGTCAAACGCGACCTAACCACGATCTCGTAGCCCGAATATCACACGTCGCGTAGGTGGGGGTCCGCCAGCAGTTACGTTTGCTTGTCGCGTCTTATGCGGAACTCTCACCCGTAGAAATCGCAGCACCTTAGTCTCAAAGATCCCAGCTAAACCAGGCTACACAAAGCAAGTTCCGCAAATAACGGCTTGTTCTGTACTTCGCTCTGTAACCGAGAACCGAATCACGGGGTAGAATTGGGTATATAATCCGTATTTGGGACGGTTTATGTGAGCCAGTCAGCATGCAAACAACGTTATTCACCGGCGATGCGG')