Question

我想返回一个文件包含的字典。我所拥有的是这段代码：

def read_report(filename):
    new_report = {}
    input_filename = open(filename)
    for line in input_filename:
        lines = line[:-1]
        new_report.append(lines)
    input_filename.close()
    return new_report

它说我不能附加到字典。那么我如何将文件中的行添加到字典中呢？假设我的文件名是这样的：

shorts: a, b, c, d
longs: a, b, c, d
mosts: a
count: 11
avglen: 1.0

a 5
b 3
c 2
d 1

Answer 1

如果您重写输入文件以使第一行和第二行具有统一的行，您可以尝试这样做：

编辑：修改代码以支持带空格分隔符的行而不是冒号（：）

def read_report(filename):
    new_report = {}
    f = open(filename)
    for line in f:
        if line.count(':') == 1:
            key, value = line.split(':')
        else:
            key, value = line.split(' ')
        new_report[key] = value.split(',')
    f.close()
    return new_report

Answer 2

我假设您的文件的最后几行（不包含:的那些行）将被忽略。

from collections import defaultdict

d = defaultdict(list)

with open('somefile.txt') as f:
   for line in f:
      if ':' in line:
          key, val = line.split(':')
          d[key.strip()] += val.rstrip().split(',')

Answer 3

def read_line(filename):
    list = [] 
    new_report = {} 
    file_name = open(filename)
    for i in file_name:
        list.append(i[:-1])
    for i in range(len(list)):
        new_report[i] = list[i]
    file_name.close()
    return new_report

将文件中的内容转换为字典

3 个答案: