[英]how to convert lists to dictionary in python?
i wonder to convert 'list to dictionary'.我想将“列表转换为字典”。
input :输入:
G_list = ['BRAF\tGly464Glu', 'BRAF\tGly464Val', 'BRAF\tGly466Glu', 'BRAF\tGly466Val']
wondering output :想知道输出:
{'BRAF' : ['Gly464Glu', 'Gly464Val', 'Gly466Glu', 'Gly466Val']}
Any help would be appreciated.任何帮助,将不胜感激。 Thanks谢谢
You can do the following:您可以执行以下操作:
d = {}
for s in G_list:
k, v = s.split("\t")
# k, v = s.split("\t", 1) # if the value might contain more tabs
d.setdefault(k, []).append(v)
Since this is essentially csv data (maybe coming from a file, a .csv
or rather a .tsv
), you can also consider using the csv
module.由于这本质上是 csv 数据(可能来自文件、 .csv
或更确切地说是.tsv
),您还可以考虑使用csv
模块。 The reader
in particular will work on any iterable of strings:特别是reader
将处理任何可迭代的字符串:
from csv import reader
d = {}
for k, v in reader(G_list, delimiter="\t"):
d.setdefault(k, []).append(v)
Some docs:一些文档:
Split by a whitespace (using str.split
) and store the results using collections.defaultdict
:用空格分割(使用str.split
)并使用collections.defaultdict
存储结果:
from collections import defaultdict
G_list = ['BRAF\tGly464Glu', 'BRAF\tGly464Val', 'BRAF\tGly466Glu', 'BRAF\tGly466Val']
d = defaultdict(list)
for key, value in map(str.split, G_list):
d[key].append(value)
print(d)
Output输出
defaultdict(<class 'list'>, {'BRAF': ['Gly464Glu', 'Gly464Val', 'Gly466Glu', 'Gly466Val']})
One of the approaches:方法之一:
from collections import defaultdict
G_list = ['BRAF\tGly464Glu', 'BRAF\tGly464Val', 'BRAF\tGly466Glu', 'BRAF\tGly466Val']
out = defaultdict(list)
for item in G_list:
data = item.split('\t')
out[data[0]].append(data[1])
print (out)
Output:输出:
defaultdict(<class 'list'>, {'BRAF': ['Gly464Glu', 'Gly464Val', 'Gly466Glu', 'Gly466Val']})
G_list = ['BRAF\tGly464Glu', 'BRAF\tGly464Val',
'BRAF\tGly466Glu', 'BRAF\tGly466Val']
d={ }
for s in G_list :
u, v = s.spilt("\t")
d.setdefault(u, [ ]).append(v)
Print(d)
def Convert(lst):定义转换(lst):
res_dct = {lst[i]: lst[i + 1] for i in range(0, len(lst), 2)}
return res_dct
lst = ['BRAF\\tGly464Glu', 'BRAF\\tGly464Val', 'BRAF\\tGly466Glu', 'BRAF\\tGly466Val'] lst = ['BRAF\\tGly464Glu'、'BRAF\\tGly464Val'、'BRAF\\tGly466Glu'、'BRAF\\tGly466Val']
print(Convert(lst))打印(转换(lst))
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