帮我解读下这个代码:import csv import os import numpy as np import pandas as pd import pymysql from pymysql import connect # %% # drug_table = pd.read_excel('./data/drug.xlsx') drug_table_an = pd.read_excel('./data/mimiciv_feature_info.xlsx', sheet_name='antibiotic') drug_table_sa = pd.read_excel('./data/mimiciv_feature_info.xlsx', sheet_name='sedatives_and_analgesics') drug_table_co = pd.read_excel('./data/mimiciv_feature_info.xlsx', sheet_name='anticoagulant') prescriptions = pd.read_csv('/data/check_in/EHR_data/MIMIC_III/CSV/PRESCRIPTIONS.csv') item = pd.read_csv('/data/check_in/EHR_data/MIMIC_III/CSV/D_ITEMS.csv') labitem = pd.read_csv('/data/check_in/EHR_data/MIMIC_III/CSV/D_LABITEMS.csv') columns_pre = prescriptions.columns.tolist() columns_item = item.columns.tolist() columns_labitem = labitem.columns.tolist() # drugs = (drug_table['anticoagulant'].to_list()+drug_table['antiplatelet'].to_list())[:-4] drugs = ['barbital' ,'zepam' ,'zolam' ,'zolpidem' ,'propofol' ,'dexmedetomidine' ,'pentobarbital' ,'clonazepam' ,'alprazolam' ,'estazolam' ,'Zolpidem Tartrate'] drug_test_tsv = open('drug_patients_sedative.csv', 'w', newline='', encoding='utf-8') drug_test = csv.writer(drug_test_tsv, delimiter=',') drug_test.writerow(columns_pre) item_test_tsv = open('item_patients_sedative.csv', 'w', newline='', encoding='utf-8') item_test = csv.writer(item_test_tsv, delimiter=',') item_test.writerow(columns_item) labitem_test_tsv = open('labitem_patients_sedative.csv', 'w', newline='', encoding='utf-8') labitem_test = csv.writer(labitem_test_tsv, delimiter=',') labitem_test.writerow(columns_labitem) # import pdb;pdb.set_trace() for drug in drugs: # print(type(drug)) sql = "select * FROM PRESCRIPTIONS where drug like '%"+ drug + "%' or drug_name_poe like '%"+ drug + "%' or drug_name_generic like '%"+ drug + "%'" print(sql) conn = connect(host='127.0.0.1', port=3306, user='root', passwd='root', db='mimiciii') cursor = conn.cursor() cursor.execute(sql) data_tmp = cursor.fetchall() # print(data_tmp is None) if len(data_tmp) != 0: for data_cur in data_tmp: print(data_cur[1], data_cur[2], data_cur[3], data_cur[7], data_cur[8], data_cur[9]) drug_test.writerow(list(data_cur)) # import pdb;pdb.set_trace() for drug in drugs: # print(type(drug)) sql = "select * FROM D_ITEMS where label like '%{}%'" .format(drug) print(sql) conn1 = connect(host='127.0.0.1', port=3306, user='root', passwd='root', db='mimiciii') cursor1 = conn1.cursor() cursor1.execute(sql) data_tmp = cursor1.fetchall() if len(data_tmp) != 0: for data_cur in data_tmp: print(data_cur[1], data_cur[2]) item_test.writerow(list(data_cur)) # import pdb;pdb.set_trace() for drug in drugs: # print(type(drug)) sql = "select * FROM D_LABITEMS where label like '%{}%'" .format(drug) print(sql) conn1 = connect(host='127.0.0.1', port=3306, user='root', passwd='root', db='mimiciii') cursor1 = conn1.cursor() cursor1.execute(sql) data_tmp = cursor1.fetchall() if len(data_tmp) != 0: for data_cur in data_tmp: print(data_cur[1], data_cur[2]) labitem_test.writerow(list(data_cur)) # import pdb;pdb.set_trace() # %% import pandas as pd drug = pd.read_csv('drug_patients_sedative.csv') print(drug.DRUG.unique()) # %% print(drug.DRUG_NAME_POE.unique()) # %% print(drug.DRUG_NAME_GENERIC.unique()) # %%
时间: 2023-04-10 21:03:43 浏览: 158
这段代码是Python语言的导入模块语句,它导入了csv、os、numpy、pandas和pymysql等模块,并从pymysql模块中导入connect函数。这些模块提供了各种功能,如读写CSV文件、操作操作系统、进行数值计算、处理数据和连接MySQL数据库等。
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请帮我解释一下这段代码:import requests from bs4 import BeautifulSoup import time import pymysql import pandas as pd import numpy as np import matplotlib.pyplot as plt from travel_save_file import * import re for page in range(1,200): print(page) time.sleep(
这段代码是一个Python脚本,主要功能是爬取一个旅游网站的数据,并将数据存储到MySQL数据库中。具体解释如下:
1. `import`语句用来导入需要用到的Python模块,包括`requests`、`bs4`、`time`、`pymysql`、`pandas`、`numpy`、`matplotlib.pyplot`、`travel_save_file`和`re`。
2. `for`循环用来遍历旅游网站的200个页面,每次循环都会爬取一个页面的数据。
3. `print`语句用来输出当前循环的页面数。
4. `time.sleep()`函数用来控制爬取每个页面之间的时间间隔,避免爬取过快被网站封IP。
5. `requests.get()`函数用来向旅游网站发送GET请求,获取页面的HTML源代码。
6. `BeautifulSoup`模块用来解析HTML源代码,提取需要的数据。
7. `re`模块用来进行正则表达式匹配,提取需要的数据。
8. `pymysql`模块用来连接MySQL数据库,并将数据存储到数据库中。
9. `pandas`和`numpy`模块用来处理数据,例如将数据转换为DataFrame格式,进行数据筛选和统计等操作。
10. `matplotlib.pyplot`模块用来绘制数据图表,展示数据分布和趋势等信息。
11. `travel_save_file`模块是自定义的模块,用来将爬取到的数据存储到本地文件中。
请帮我解释一下这段代码,并列举出其中的关键代码:import requests from bs4 import BeautifulSoup import time import pymysql import pandas as pd import numpy as np import matplotlib.pyplot as plt from travel_save_file import * import re for page in range(1,200): print(page)
这段代码包含了导入必要的 Python 模块和库,使用了循环控制语句和打印语句,其中的关键代码包括:
- import requests:导入 requests 模块,用于发送 HTTP 请求和处理响应;
- from bs4 import BeautifulSoup:导入 BeautifulSoup 模块,用于解析 HTML 和 XML 文档;
- for page in range(1,200): 循环语句,从 1 循环到 199(不包括200);
- print(page):打印当前循环的页数。
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