API in python

API

API，全称为 Application Programming Interface，即应用程序编程接口，是一个可用于检索代码并将数据发送到使用代码的服务器。

  当我们想从API接收数据时，我们需要发出请求。请求遍及整个网络。例如，当您访问此博客文章时，您的Web浏览器向服务器发出了请求，该服务器以该Web页的内容作为响应。

#python
import requests
#打印出的结果：{u'alevel': 4, u'lon': 114.05786, u'level': 2, u'cityName': u'', u'address': u'', u'lat': 22.54309}
# 与在浏览器输入地址的结果一致

import numpy as np
import pandas as pd
import statsmodels.api as sm

df=pd.read_csv("/Users/a182501/class.csv")
df

	name	sex	age	height	weight
0	Alice	F	13	56.5	84.0
1	Becka	F	13	65.3	98.0
2	Gail	F	14	64.3	90.0
3	Karen	F	12	56.3	77.0
4	Kathy	F	12	59.8	84.5
...	...	...	...	...	...
69	Sharon	M	15	59.8	102.5
70	Tammy	M	14	66.5	84.0
71	Alfred	M	15	51.3	102.5
72	Duke	M	17	62.5	133.0
73	Guido	M	15	62.8	83.0

for i in range(len(df)):
    if(df.sex[i]== 'F' ):
        df.sex[i]=0
    else:
        df.sex[i]=1

/var/folders/sn/g01cvq2j72j6tbq2pmmm074h0000gq/T/ipykernel_47547/3328237516.py:5: SettingWithCopyWarning: 
A value is trying to be set on a copy of a slice from a DataFrame

See the caveats in the documentation: https://pandas.pydata.org/pandas-docs/stable/user_guide/indexing.html#returning-a-view-versus-a-copy
  df.sex[i]=1

df

	name	sex	age	height	weight
0	Alice	1	13	56.5	84.0
1	Becka	1	13	65.3	98.0
2	Gail	1	14	64.3	90.0
3	Karen	1	12	56.3	77.0
4	Kathy	1	12	59.8	84.5
...	...	...	...	...	...
69	Sharon	1	15	59.8	102.5
70	Tammy	1	14	66.5	84.0
71	Alfred	1	15	51.3	102.5
72	Duke	1	17	62.5	133.0
73	Guido	1	15	62.8	83.0