The two static analysis tools used to find bugs in Python are Pychecker and Pylint. Pychecker detects bugs from the source code and warns about its style and complexity. While Pylint checks whether the module …

Python | Reversing a String >>> x = 'PythonWorld' >>> print(x[: : -1]) dlroWnohtyP  

Git | Undo the most recent local commits Bellow command is used to reset the last local commit. git reset HEAD~        

 Python | In-place swapping of two numbers >>> a, b = 10, 20 >>> print(a, b) 10 20 >>> a, b = b, a >>> print(a, b) 20 10  

Windows | Set path and environment variables in Windows 8 Press the + to access the Power User Task Menu Now, select the System option. Click the Advanced System Settings link in the left column. In the Advanced tab, click the  button. In the Environment Variables window highlight …

Python | Return multiple values from functions >>> def A(): return 2, 3, 4 >>> a, b, c = A() >>> print(a, b, c) 2 3 4  

Python | Join all items of a list to convert into a single string >>> x = ["Python", "Online", "Training"] >>> print(" ".join(x)) Python Online Training  

Using the query method we can print SQL query from the queryset post = Post.objects.all() print(post.query)  

Python | vars(), dir() and help()  The vars() function returns the __dict__ attribute of an object. The dir() function returns all properties and methods of the specified object, without the values. The help() function is used to display …

No. However, Abstract Base Classes (ABCs) are a feature from the abc module that let us declare what methods subclasses should implement. Python supports this module since version 2.7.

Python | filter(), map(), and reduce() Functions filter()  function accepts two arguments, a function and an iterable, where each element of the iterable is filtered through the function to test if the item is accepted or …

Python | Difference between @staticmethod and @classmethod A staticmethod is a method that knows nothing about the class or the instance it was called on. It just gets the arguments that were passed, no implicit first argument. …

Django | NoSQL NoSQL basically stands for “not only SQL”. This is considered an alternative to the traditional RDBMS or relational Databases. Officially, Django does not support NoSQL databases. However, there are third-party projects, such as …

In Django, static files are the files that serve the purpose of additional purposes such as images, CSS, or JavaScript files. Static files managed by “django.contrib.staticfiles”. There are three main things to  set up static …

When working with PHP, there are situations where you may want to trigger an external URL in the background without affecting the user experience. This can be useful for logging, API calls, or background processing …