如何编写具有多个键的字典，每个键具有多个值到 Python 中的 csv？

Question

我有一本看起来像这样的字典...

cla_1results= {"Tom":[1,7,4],"Dunc":[3,9,4],"Jack":[1,3,5]}

我想把这本字典写成csv格式，格式如下

没有 post 图片的代表，但应该是这样的...

Tom,  1, 7, 4
Dunc  3, 9, 4
Jack  1, 3, 5

我试过的都没有用。我最近的努力如下，但我是 Python 和一般编程的真正初学者。

import csv

cla_1results= {"Tom":[1,7,4],"Dunc":[3,9,4],"Jack":[1,3,5]}
cla_2results = {"Jane":[1,7,4],"Lynda":[3,9,4],"Dave":[1,3,5]}
cla_3results = {"Gemma":[1,7,4],"Steve":[3,9,4],"Jay":[1,3,5]}

b = open ('test.csv','w')
a = csv.writer(b)
data = cla_1results= {"Tom":[1,7,4],"Dunc":[3,9,4],"Jack":[1,3,5]}
a.writerows(data)
b.close()

不幸的是，这只给了我：

T, o, m
D, u, n, c
J, a, c, k

等等

Answer 1

这应该可行，您只需要一个列表来生成 csv 文件，因此它也可以即时生成。

import csv
cla_1results= {"Tom":[1,7,4],"Dunc":[3,9,4],"Jack":[1,3,5]}
with open('test.csv', 'wb') as csvfile:

        writer = csv.writer(csvfile, delimiter=',')

        for key,value in cla_1results.iteritems():
                writer.writerow([key]+value)

Answer 2

您可以使用 DataFrame.from_dict() classmethod to convert dict to DataFrame and then can use to_csv 将数据帧转换为 csv。我用 header=False 去掉了 headers.

from pandas import DataFrame

cla_1results = {"Tom": [1, 7, 4], "Dunc": [3, 9, 4], "Jack": [1, 3, 5]}

df = DataFrame.from_dict(cla_1results, orient='index')

print(df.to_csv(header=False))

Dunc,3,9,4
Jack,1,3,5
Tom,1,7,4

Answer 3

尝试：

import csv

with open('test.csv', 'wb') as csvfile:
    c = csv.writer(csvfile)
    line = []
    for key, value in cla.iteritems():
        line.append(key)
        for i in value:
            line.append(i)
        c.writerow(line)

Answer 4

data = {"Tom":[1,7,4],"Dunc":[3,9,4],"Jack":[1,3,5]}
with open('test.csv', 'w') as f:
    for k, vals in data.items():
        line = ','.join([k] + map(str, vals)) + '\n'
        f.write(line)

Answer 5

多种方法之一：

import csv

cla_1results = {
    "Tom": [1, 7, 4],
    "Dunc": [3, 9, 4],
    "Jack": [1, 3, 5]
}

with open("test.csv", 'w+') as file:
    writer = csv.writer(file)

    for name in cla_1results:
        writer.writerow([name, ] + [i for i in cla_1results[name]])

如何编写具有多个键的字典，每个键具有多个值到 Python 中的 csv？

How to write a dictionary with multiple keys, each with multiple values to a csv in Python?

python

csv

dictionary

file-writing