format_string)print("转换后的 datetime 对象:",datetime_obj)Python 入门书籍推荐《Python 编程从入门到实践》第二版，出版时间: 2021年05月，第一版就很不错，第二版做了很多优化，视频的话 B 站上有很多免费的，可以看看鱼C-小甲鱼、樵夫或者廖雪峰的，python 基础学完后有很多分支，大数据时
本文简要介绍 python 语言中 numpy.datetime_as_string 的用法。 用法: numpy.datetime_as_string(arr, unit=None, timezone='naive', casting='same_kind')将日期时间数组转换为字符串数组。参数: arr: 类似datetime64 的数组 要格式化的 UTC 时间戳数组。 unit: str None、‘auto’ 或日期时间单位之一。
importpendulum#获取当前时间now =pendulum.now()print(now)#带有时区信息#创建特定日期时间specific_date = pendulum.datetime(2024, 8, 23, 10, 15)print(specific_date)#时间差的表示diff =specific_date.diff(now)print(diff.in_days())#输出差异的天数#格式化日期formatted =now.to_formatted_date_string()...
明确指定时区! df['timestamp'] = pd.to_datetime(df['timestamp']).dt.tz_localize('UTC') ``` 🌟 我的数据分析工作流(真实案例分享) 最近分析电商用户行为数据时,我是这样用Pandas的: 用pd.read_sql()直接从数据库拉取原始数据 用.pipe()函数流水线清洗数据: python clean_df = (raw_data .pipe...
8601格式的日期字符串iso_string="2023-12-25T12:00:00Z"christmas_day=datetime.strptime(iso_string...
# d、e、f、g开头: 'datetime64', 'datetime_as_string', 'datetime_data', 'deg2rad', 'degrees', 'delete', 'deprecate', 'deprecate_with_doc', 'diag', 'diag_indices', 'diag_indices_from', 'diagflat', 'diagonal', 'diff', 'digitize', 'disp', 'divide', 'division', 'divmod', '...
Here,year,day,timeanddate_timeare strings, whereasnowis adatetimeobject. How strftime() works? In the above program,%Y,%m,%detc. are format codes. Thestrftime()method takes one or more format codes as an argument and returns a formatted string based on it. ...
When you read a date or time from a text file, user input, or a database, you are likely to get the date information as a string. It is helpful to convert the string to a datetime object since it will allow you to do more advanced functions. In today’s article, I will discuss ...
datetime.strptime(reminder_date, '%Y-%m-%d')if now.date() == reminder_date.date():message = MIMEText(body, 'plain')message['From'] = sender_emailmessage['To'] = recipient_emailmessage['Subject'] = subjectserver.sendmail(s...
as attachment: part = MIMEBase('application', 'octet-stream') part.set_payload(attachment.read()) encoders.encode_base64(part) part.add_header('Content-Disposition', f"attachment; filename= {file_path}") message.attach(part) server.sendmail(sender_email, recipient_email, message.as_string(...