python: 读取 dna 序列文本文件到字典

Question

我正在尝试将包含 DNA 序列的文本文件转换为 python 中的字典。该文件按列设置。

TTT F
TCT S
TAT Y
TGT C
TTC F


import os.path

if os.path.isfile("GeneticCode_2.txt"):
    f = open('GeneticCode_2.txt', 'r')
    my_dict = eval(f.read())

正在尝试将其发送到：

my_dict = {TTT: F, TCT: S, TAT: Y}

Answer 1

您可以使用 dict 构造函数使用可迭代的对（2 元组）并将其传递给文件的拆分行：

with open('GeneticCode_2.txt', 'r') as f:
    my_dict = dict(line.split() for line in f)  
    # works only if file only contains lines that split into exactly 2 tokens

Answer 2

d = {}
with open("GeneticCode_2.txt") as infile:
    for line in infile:
        k,v = line.strip().split()
        d[k] = v

Answer 3

这不是最紧凑的实现方式，但可读性很强。

my_dict = dict()

for line in f.readlines():
    parts = line.strip().split()
    if not len(parts) < 2:
        my_dict[parts[0]] = parts[1]

python: 读取 dna 序列文本文件到字典

python: read dna sequence text file to dictionary

python

dictionary

dna-sequence