[英]Write 2 lists in 2 columns of CSV file in python
I have 2 lists let's say我有 2 个列表让我们说
a = [1,2,3]
b = [4,5,6]
I want to write them in two columns in CSV file so when I open the excel sheet I see something like this :我想将它们写在 CSV 文件的两列中,所以当我打开 Excel 表格时,我看到如下内容:
col1 col2
1 4
2 5
3 6
How can I do this?我怎样才能做到这一点?
I used zip(a,b)
but the result is stored in one column:我使用了
zip(a,b)
但结果存储在一列中:
col1
1 4
2 5
3 6
You need to use csv.Dictwriter()
to be able to specify the field names.您需要使用
csv.Dictwriter()
才能指定字段名称。
import csv
with open('numbers.csv', 'w', newline='') as csvfile:
fieldnames = ['col1', 'col2']
writer = csv.DictWriter(csvfile, fieldnames=fieldnames)
writer.writeheader()
for i, j in zip(a, b):
writer.writerow({'col1': i, 'col2': j})
Or instead of a regular for
loop you could use writerows
and a list comprehension:或者,您可以使用
writerows
和列表理解来代替常规的for
循环:
writer.writerows([{'col1': i, 'col2': j} for i,j in zip(a,b)])
Using pandas
is very easy.使用
pandas
非常简单。 Just:只是:
import pandas as pd
and then:接着:
In [13]: df = pd.DataFrame({'col1':a, 'col2':b})
In [14]: df
Out[14]:
col1 col2
0 1 4
1 2 5
2 3 6
In [15]: df.to_csv('numbers.csv', index=False)
Basically you are building a dataframe with your lists and then save back to .csv
.基本上,您正在使用列表构建数据框,然后保存回
.csv
。 Hope that helps.希望有帮助。
9963354538:8790348643 9963354539:8790348644 9963354530:8790348645 9963354531:8790348646 9963354532:8790348647 9963354533:8790348648 9963354534:8790348649 9963354535:8790348640 9963354536:8790348641 9963354537:8790348642 9963354538:8790348643 9963354539:8790348644 9963354530:8790348645 9963354531:8790348646 9963354532:8790348647 9963354533:8790348648 9963354534:8790348649 9963354535:8790348640 9963354536:8790348641 9963354537:8790348642
this is the csv file i have and i want to convert this file into这是我拥有的 csv 文件,我想将此文件转换为
[{'batch': '9963354538', 'pin': '8790348643'}, {'batch': '9963354539', 'pin': '8790348644'}, {'batch': '9963354530', 'pin': '8790348645'}, {'batch': '9963354531', 'pin': '8790348646'}, {'batch': '9963354532', 'pin': '8790348647'}, {'batch': '9963354533', 'pin': '8790348648'}, {'batch': '9963354534', 'pin': '8790348649'}, {'batch': '9963354535', 'pin': '8790348640'}, {'batch': '9963354536', 'pin': '8790348641'}, {'batch': '9963354537', 'pin': '8790348642'}] [{'batch':'9963354538','pin':'8790348643'},{'batch':'9963354539','pin':'8790348644'},{'batch':'9963354530': '8790348645'},{'batch':'9963354531','pin':'8790348646'},{'batch':'9963354532','pin':'8790348647'},'9563'},'9563' 'pin':'8790348648'},{'batch':'9963354534','pin':'8790348649'},{'batch':'9963354535','pin':'8790348640'} '9963354536','pin':'8790348641'},{'batch':'9963354537','pin':'8790348642'}]
this form list of dictionaries这种形式的字典列表
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