[英]How to export dictionary as CSV using Python?
我在将字典中的某些项目导出到CSV时遇到问题。 我可以导出“名称”,但不能导出“图像”(图像URL)。
这是我字典的一部分示例:
new = [{ "name" : "peter", "picture" : "https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F33500665%2F25911657759%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C581%2C6000%2C3000&s=bfaa2901b8c906a66c51563d15c6df12"},
{"name" : "jim" , "picture" : "https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F32935536%2F10115879927%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C40%2C624%2C312&s=c67e995e83234ab460707ac21f3541f8"}]
编辑(正如我指出的那样,我在命名上犯了一个错误。更新后似乎现在可以使用)。
这是我编写的代码(适用于“名称”,但不适用于“图片”):
import csv
test = []
for document in new:
event_obj = {}
# Get name
event_obj['name'] = document['name']
# Get images
event_obj['picture'] = document['picture']
test.append(event_obj)
# Create CSV file
with open('Eventbrite_events.csv', 'w', newline='') as csvfile:
fields = ['name', 'picture']
writer = csv.DictWriter(csvfile, fieldnames=fields)
writer.writeheader()
for x in test:
writer.writerow(x)
print(csvfile)
您的new
列表包含带有关键picture
字典,但是您试图访问一个称为images
。
import csv
new = [
{ "name" : "peter", "picture" : "https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F33500665%2F25911657759%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C581%2C6000%2C3000&s=bfaa2901b8c906a66c51563d15c6df12"},
{"name" : "jim" , "picture" : "https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F32935536%2F10115879927%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C40%2C624%2C312&s=c67e995e83234ab460707ac21f3541f8"}]
test = []
for document in new:
event_obj = {}
# Get name
event_obj['name'] = document['name']
# Get images
event_obj['images'] = document['picture']
test.append(event_obj)
# Create CSV file
with open('Eventbrite_events.csv', 'w', newline='') as csvfile:
fields = ['name', 'images']
writer = csv.DictWriter(csvfile, fieldnames=fields)
writer.writeheader()
writer.writerows(test)
您还可以利用writerows()
写入所有行。
这将为您提供一个CSV文件,如下所示:
name,images
peter,https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F33500665%2F25911657759%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C581%2C6000%2C3000&s=bfaa2901b8c906a66c51563d15c6df12
jim,https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F32935536%2F10115879927%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C40%2C624%2C312&s=c67e995e83234ab460707ac21f3541f8
您还可以避免如下构建test
以此作为重命名条目的替代方法:
import csv
new = [
{"name" : "peter", "picture" : "https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F33500665%2F25911657759%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C581%2C6000%2C3000&s=bfaa2901b8c906a66c51563d15c6df12"},
{"name" : "jim" , "picture" : "https://img.evbuc.com/https%3A%2F%2Fcdn.evbuc.com%2Fimages%2F32935536%2F10115879927%2F1%2Foriginal.jpg?h=200&w=450&rect=0%2C40%2C624%2C312&s=c67e995e83234ab460707ac21f3541f8"}]
# Create CSV file
with open('Eventbrite_events.csv', 'w', newline='') as csvfile:
fields = ['name', 'images']
writer = csv.DictWriter(csvfile, fieldnames=fields)
writer.writeheader()
for row in new:
row['images'] = row.pop('picture')
writer.writerow(row)
Pandas
更适合您的问题。
import pandas as pd
df = pf.DataFrame(list_of_dict)
df.columns = ["name", "image or picture"]
df.to_csv("test.csv", index=0)
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