当我将数据保存到csv文件时,仅保存ID为103的记录,而ID为101和102的记录不可用。
import pandas as pd
import requests as rq
for vehicleList in range(101, 103):
vehicleList = vehicleList + 1
x = str(vehicleList)
r = rq.get('https://api.tfl.gov.uk/vehicle/' + x + '/arrivals')
r = r.text
df = pd.read_json(r)
df.to_csv('filename.csv')
最佳答案
保存之前,您需要连接数据。例如:
import pandas as pd
import requests as rq
temp = pd.DataFrame()
df = pd.DataFrame()
for vehicleList in range(101, 103):
vehicleList = vehicleList + 1
x = str(vehicleList)
r = rq.get('https://api.tfl.gov.uk/vehicle/' + x + '/arrivals')
r = r.text
temp = pd.read_json(r)
# some identifier here
temp['Type'] = x
# concat
df = pd.concat([df, temp]).reset_index(drop=True)
df.to_csv('filename.csv')
您为每个循环
temp
分配一个临时DataFrame,然后添加一个唯一的ID表示组temp['Type']
,然后连接到df
。循环完成后,您将保存df及其所有迭代。关于python - 如何在python(pandas)中保存数据,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/59295095/