importpandasaspd now=pd.Timestamp.now()print("Current year: ",now.year)print("Current quarter: ",now.quarter)print("Current month: ",now.month)print("Current week num: ",now.week)print("Current week num: ",now.weekofyear)print("Current day: ",now.day)print("Current day_of_year: ...
def get_current_date(): return datetime.now() 使用applymap()方法将函数应用到DataFrame的每个元素上,并将结果存储在新的一列中: 代码语言:txt 复制 df['Last Edited'] = df.applymap(lambda x: get_current_date()) 这样,df['Last Edited']列中的每个元素就是最后编辑的日期和时间。 Pandas的优势...
# 使用ix进行下表和名称组合做引 data.ix[0:4, ['open', 'close', 'high', 'low']] # 推荐使用loc和iloc来获取的方式 data.loc[data.index[0:4], ['open', 'close', 'high', 'low']] data.iloc[0:4, data.columns.get_indexer(['open', 'close', 'high', 'low'])] open close hig...
# @Time : 2022/1/12 19:57 # @Author : 南黎 # @FileName: 3..py import pandas as pd ###显示中文宋体字体导入,如果使用中文加上这段代码### import matplotlib as plt plt.rcParams['font.sans-serif'] = ['SimHei'] plt.rcParams['axes.unicode_minus'] = False ### import pandas as pd...
requestsfromdatetimeimportdatetime,timedeltadeffetch_realtime_data(api_url):response=requests.get(api_url)data=response.json()df=pd.DataFrame(data)returndf# 每隔5秒获取一次数据whileTrue:current_time=datetime.now()df=fetch_realtime_data('https:///data')print(f"Data fetched at{current_time}")...
16. Manipulate Datetime with Timezone Information Write a Pandas program to manipulate and convert date times with timezone information. Click me to see the sample solution 17. Average Mean of UFO Sighting Reports Write a Pandas program to get the average mean of the UFO (unidentified flying ob...
Help on function bdate_range in module pandas.core.indexes.datetimes:bdate_range(start=None, end=None, periods: 'int | None' = None, freq='B', tz=None, normalize: 'bool' = True, name: 'Hashable' = None, weekmask=None, holidays=None, closed=None, **kwargs) -> 'DatetimeIndex'Re...
21、pd.Series中日期字符串转换为datetime格式 22、获取pd.Series日期字符串中时间对象 23、pd.Series日期字符串中修改为按指定日期输出 24、输出pd.Series中至少包含两个元音字符的数据 25、输出pd.Series中有效的email地址 26、pd.Series1按pd.Series2分组并求均值 27、计算两个pd.Series之间的欧式距离...
import datetimefrom email.mime.text import MIMETextfrom email.mime.multipart import MIMEMultipartimport smtplib#返回SQL结果的函数def retsql(sql): db_user = MySQLdb.connect('IP','用户名','密码','j数据库名(可以不指定)',cursorclass=MySQLdb.cursors.DictCursor(设置返回结果以字典的格式)) cursor = ...
result=list(df1.T.to_dict().values())importnumpy as npclassMyNpEncoder(json.JSONEncoder):defdefault(self, obj):ifisinstance(obj, np.integer):returnint(obj)elifisinstance(obj, np.floating):returnfloat(obj)elifisinstance(obj, np.ndarray):returnobj.tolist()elifisinstance(obj, pd.datetime):re...