Q251. What Is The Command To Debug A Python Program?
Python provides several tools to interactively debug programs from the command line: ### 1. The Built-in `breakpoint()` Function (Python 3.7+ - Recommended): Insert `brea...
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Q252. How Do You Monitor The Code Flow Of A Program In Python?
In Python, we can use the sys module's settrace() method to setup trace hooks and monitor the functions inside a program. You need to def ine a trace callback method and ...
Q253. How long can an identifier be in Python?
According to the official Python documentation, an identifier can be of any length. However, PEP 8 suggests that you should limit all lines to a maximum of 79 characters....
Q254. How would you convert a string into lowercase?
We use the lower() method for this. ```python >>> 'AyuShi'.lower() ``` 'ayushi' To convert it into uppercase, then, we use upper(). ```python >>> 'AyuShi'.upper() ``` 'AY...
Q255. What is the pass statement in Python?
There may be times in our code when we haven't decided what to do yet, but we must type something for it to be syntactically correct. In such a case, we use the pass stat...
Q256. Explain help() and dir() functions in Python?
The help() function displays the documentation string and help for its argument. ```python >>> import copy ``` >>> help(copy.copy) Help on function copy in module copy: c...
Q257. How do you get a list of all the keys in a dictionary?
In Python, you retrieve dictionary keys using the **`.keys()`** method or by converting the dictionary directly to a `list`: ```python user = {'id': 101, 'username': 'ale...
Q258. How will you check if all characters in a string are alphanumeric?
Use the `.isalnum()` method on a string. It returns `True` if all characters in the string are alphanumeric (letters or numbers) and there is at least one character: ```p...
Q259. With Python, how do you find out which directory you are currently in?
To find this, we use the function/method getcwd(). We import it from the module os. ```python >>> import os ``` >>> os.getcwd() 'C:\\Users\\lifei\\AppData\\Local\\Program...
Q260. How do you insert an object at a given index in Python?
Let's build a list first. ```python >>> a=[1,2,4] ``` Now, we use the method insert. The first argument is the index at which to insert, the second is the value to insert...