Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
Articles by Rajendra Dharmkar
Page 5 of 16
How to store and retrieve a date into MySQL database using Python?
To insert a date in a MySQL database, you need to have a column of Type DATE or DATETIME in your table. Once you have that, you'll need to convert your date to a string format before inserting it into your database. You can use the datetime module's strftime() formatting function for this purpose. Setting up the Database Connection First, let's establish a connection to MySQL and create a sample table ? import mysql.connector from datetime import datetime # Create connection (adjust credentials as needed) connection = mysql.connector.connect( host='localhost', ...
Read MoreHow to store and retrieve date into Sqlite3 database using Python?
You can easily store and retrieve dates in SQLite3 database using Python's sqlite3 module. When inserting dates, pass the datetime.date object directly and Python handles the conversion automatically by using the detect_types=sqlite3.PARSE_DECLTYPES parameter. Setting Up the Database Connection First, create a connection with date parsing enabled and set up a table ? import sqlite3 import datetime # Enable automatic date parsing conn = sqlite3.connect(":memory:", detect_types=sqlite3.PARSE_DECLTYPES) conn.execute('''CREATE TABLE TEST (ID TEXT PRIMARY KEY NOT NULL, DATE DATE)''') conn.commit() print("Table created successfully") Table created successfully Storing Dates in the Database Insert ...
Read MoreWhat are Python modules for date manipulation?
Python provides several powerful modules for date and time manipulation, each serving different purposes. Here are the most important modules available for working with dates and times in Python. Standard Library Modules datetime Module The datetime module is the primary built-in module for date and time manipulation. It provides classes for working with dates, times, and time intervals ? from datetime import datetime, date, time, timedelta # Current date and time now = datetime.now() print("Current datetime:", now) # Create specific date birthday = date(2024, 12, 25) print("Date:", birthday) # Date arithmetic future_date ...
Read MoreHow do I display the date, like "Aug 5th", using Python's strftime?
Python's strftime() function doesn't directly support ordinal suffixes like "st", "nd", "rd", and "th". You need to create a custom function to determine the appropriate suffix and combine it with strftime() formatting. Creating a Suffix Function First, let's create a helper function that determines the correct ordinal suffix for any day ? def get_suffix(day): if 4
Read MoreHow to convert an integer into a date object in Python?
You can convert an integer representing a UNIX timestamp into a date object using Python's datetime module. The fromtimestamp() function takes the timestamp as input and returns the corresponding datetime object. Basic Conversion Using fromtimestamp() The simplest approach is to use datetime.fromtimestamp() ? import datetime timestamp = 1500000000 date_obj = datetime.datetime.fromtimestamp(timestamp) print(date_obj.strftime('%Y-%m-%d %H:%M:%S')) 2017-07-14 08:10:00 Converting to Date Only If you only need the date part without time, use the date() method ? import datetime timestamp = 1500000000 date_obj = datetime.datetime.fromtimestamp(timestamp) date_only = date_obj.date() print(date_only) print(type(date_only)) ...
Read MoreHow to get the Python date object for last Wednesday?
You can get the Python date object for last Wednesday using date arithmetic. The key is calculating how many days back Wednesday was from today, regardless of what day it currently is. Understanding the Logic Python's weekday() method returns 0 for Monday, 1 for Tuesday, 2 for Wednesday, and so on. To find last Wednesday, we subtract 2 (Wednesday's index) from today's weekday and use modulo 7 to handle week boundaries ? Example from datetime import date, timedelta today = date.today() print(f"Today is: {today} ({today.strftime('%A')})") # Calculate days back to last Wednesday offset ...
Read MoreHow to convert Python date in JSON format?
There is no standard JSON format for dates. However, the ISO 8601 format is widely accepted as it's human readable, sorts correctly, includes fractional seconds, and is compatible with most programming languages. Python provides several methods to convert dates to JSON-compatible ISO format. Using isoformat() Method The isoformat() method is the simplest way to convert a Python datetime object to ISO 8601 format ? from datetime import datetime my_date = datetime.now() print(my_date.isoformat()) 2018-01-02T22:08:12.510696 Using strftime() Method For more control over the output format, you can use the strftime() function ...
Read MoreHow to print date in a regular format in Python?
When working with dates in Python, you might encounter different output formats depending on how you print them. Understanding the difference between string and object representations is crucial for proper date formatting. Direct Date Printing When you print a date object directly, Python automatically converts it to a readable string format ? import datetime today = datetime.date.today() print(today) 2024-01-02 Date Objects in Lists However, when you add date objects to a list and print the list, you see the object representation instead of the formatted string ? import ...
Read MoreHow to get last day of a month in Python?
You can use the calendar module to find the weekday of first day of the month and number of days in month. Using this information you can easily get the last day of the month. The calendar module has a method, monthrange(year, month) that returns the weekday of first day of the month and number of days in month, for the specified year and month. Using calendar.monthrange() The monthrange() function returns a tuple containing the weekday of the first day and the total number of days in the month ? import calendar # Get weekday ...
Read MoreHow do I print a Python datetime in the local timezone?
The easiest way to print a Python datetime in the local timezone is to use the pytz and tzlocal modules. These libraries provide accurate and cross-platform timezone calculations. pytz brings the Olson tz database into Python and solves the issue of ambiguous times at the end of daylight saving time. Before you use it you'll need to install it using − $ pip install pytz tzlocal Using pytz and tzlocal You can use the pytz library to convert UTC time to local timezone − from datetime import datetime from pytz import timezone ...
Read More