将文件从文本文件读入列表列表

时间:2018-05-02 09:18:15

标签: python

我有一个包含以下内容的文本文件:

name: Joe
score: 77
class: Jupiter

name: Jess
score: 87
class: Neptune

.
.
.

我正在使用python将文件内容读入两个不同的列表。我想要的格式是:

list1 = [['Joe',77],['Jess',87]]
list2 = [['Joe','Jupiter'],['Jess','Neptune']]

我试着写:

filename = open("student.txt","r")
studFile = filename
list1 = []
list2 = []

for line in studFile:
    value = line.strip().split(": ")
    if "name" in line:
        list1.append(value[1])
        list2.append(value[1])
    if "score" in line:
        list1.append(int(value[1]))
    if "class" in line:
        list2.append(value[1])

我可以感觉到,我正在以一种相当奇怪的方式阅读文件内容(if“name”)子句。有没有更好的方法呢?

1 个答案:

答案 0 :(得分:1)

我会使用dicts寻求解决方案,以便以后更轻松地访问所有数据。在这个例子中,我使用'name'作为键。

list1 = []
tmp_dict = {}
with open('student.txt','r') as file:
    for line in file:
        value = line.strip().split(': ')
        if 'name' in line:
            name = value[1]
            tmp_dict[name] = {}
        if 'score' in line:
            tmp_dict[name]['score'] = int(value[1])
        if 'class' in line:
            tmp_dict[name]['class'] = value[1]
            list1.append(tmp_dict)
            tmp_dict = {}
print(list1)

输出:

[{'Joe': {'score': 77, 'class': 'Jupiter'}}, {'Jess': {'score': 87, 'class': 'Neptune'}}]

或者修复原始代码,使其按预期工作:

list1 = []
list2 = []

name = None
with open('student.txt','r') as file:
    for line in file:
        value = line.strip().split(': ')
        if 'name' in line:
            name = value[1]
        if 'score' in line:
            list1.append([name, int(value[1])])
        if 'class' in line:
            list2.append([name, value[1]])

print(list1)
print(list2)

输出:

[['Joe', 77], ['Jess', 87]]
[['Joe', 'Jupiter'], ['Jess', 'Neptune']]