Q301. How do you open a file for writing?
Let's create a text file on our Desktop and call it tabs.txt. To open it to be able to write to it, use the following line of code- ```python >>> file=open('tabs.txt','w'...
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Q302. What are the different file-processing modes with Python?
We have the following modes- read-only – 'r' write-only – 'w' read-write – 'rw' append – 'a' We can open a text file with the option 't'. So to open a text file to read i...
Q303. What does the map() function do?
map() executes the function we pass to it as the first argument; it does so on all elements of the iterable in the second argument. Let's take an example, shall we? ```py...
Q304. List down some of the features of ES6
Below are the list of some new features of ES6, 1. Support for constants or immutable variables 2. Block-scope support for variables, constants and functions 3. Arrow fun...
Q305. What are the file-related modules we have in Python?
Python provides rich standard library modules for interacting with files, paths, and storage systems: 1. **`pathlib`** (Modern Standard): Object-oriented filesystem paths...
Q306. How will you print the contents of a file?
The most robust and pythonic way to read and print file contents is using the **`with` statement** (context manager), which guarantees the file descriptor is safely close...
Q307. How to make a chain of function decorators?
How can I make two decorators in Python that would do the following? ```python @makebold ``` @makeitalic ```python def say(): return "Hello" ``` which should return: "Hel...
Q308. How do I write a function with output parameters (call by reference)?
In Python arguments are passed by assignment. When you call a function with a parameter, a new reference is created that refers to the object passed in. This is separate ...
Q309. Write a program to count the number of capital letters in a file?
Here is a memory-efficient Python program to count uppercase capital letters in a file: ```python def count_uppercase_letters(filepath: str) -> int: """Counts uppercase l...
Q310. Benefits
- Avoids deep inheritance hierarchies - Encourages composition over inheritance - Promotes reusable and modular code Modern JavaScript favors mixin alternatives like comp...