def complement(dna):
transtable = dna.maketrans('acgtnACGTN', 'tgcanTGCAN')
return dna.translate(transtable)
import string
dna = raw_input("Enter DNA sequence: ")
print "Reverse Complement is: ", complement(dna)
我已经检查了dir(字符串)并且没有maketrans。 有没有办法导入maketrans?
答案 0 :(得分:4)
这适用于Python 3.4:
def complement(dna):
transtable = dna.maketrans('acgtnACGTN', 'tgcanTGCAN')
return dna.translate(transtable)
print(complement('TGA'))
这适用于Python 2.7:
from __future__ import print_function
import string
def complement(dna):
transtable = string.maketrans('acgtnACGTN', 'tgcanTGCAN')
return dna.translate(transtable)
print(complement('TGA'))
这为您提供了运行脚本的主要Python版本:
import sys
print(sys.version_info.major)