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Python Strings and Lists

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Questions and Answers

What is the purpose of the len() function in Python?

To remove whitespaces from a string

To get the number of characters in a string (correct)

To convert a string to uppercase

To concatenate two strings

How do you access a character in a string in Python?

By using the string name followed by the index in curly brackets

By using the string name alone

By using the string name followed by the index in square brackets (correct)

By using the string name followed by the index in parentheses

What is the syntax for slicing in Python?

[start:end]

[start:end:step] (correct)

[start:end:-1]

[start:end, step]

What operation is performed on strings using the + symbol?

Concatenation (D) Signup and view all the answers

What is the difference between '2' and 2 in Python?

'2' is a string and 2 is an integer (C) Signup and view all the answers

What happens when you try to concatenate a string with an integer in Python?

It returns a TypeError (C) Signup and view all the answers

What is the purpose of the str() function in Python?

To convert an integer to a string (D) Signup and view all the answers

What is the result of using a string method on a string in Python?

A new string is created with the modified result (A) Signup and view all the answers

What is the purpose of the len() function in Python?

To get the length of a list or string (D) Signup and view all the answers

How do you check if an item is present in a list in Python?

Using the in operator (B) Signup and view all the answers

What is the difference between a list and a tuple in Python?

A list is mutable, a tuple is immutable (B) Signup and view all the answers

What is the purpose of the append() method in a list in Python?

To add an item at the end of a list (D) Signup and view all the answers

What is the primary difference between a list and a dictionary in Python?

Dictionaries can have non-integer indices (D) Signup and view all the answers

How do you get all the keys in a dictionary?

Using the <code>keys()</code> method (C) Signup and view all the answers

What is the purpose of the `items()` method in a dictionary?

To get all the key-value pairs in a dictionary (D) Signup and view all the answers

How do you check if a key exists in a dictionary?

Using the <code>in</code> operator on the dictionary (B) Signup and view all the answers

How do you convert a list of tuples into a dictionary?

Using the <code>dict()</code> function (A) Signup and view all the answers

How do you store dictionary keys in a list?

Using the <code>list()</code> function (D) Signup and view all the answers

Python Strings and Lists

Choose a study mode

Podcast

Questions and Answers

What is the purpose of the len() function in Python?

How do you access a character in a string in Python?

What is the syntax for slicing in Python?

What operation is performed on strings using the + symbol?

What is the difference between '2' and 2 in Python?

What happens when you try to concatenate a string with an integer in Python?

What is the purpose of the str() function in Python?

What is the result of using a string method on a string in Python?

What is the purpose of the len() function in Python?

How do you check if an item is present in a list in Python?

What is the difference between a list and a tuple in Python?

What is the purpose of the append() method in a list in Python?

What is the primary difference between a list and a dictionary in Python?

How do you get all the keys in a dictionary?

What is the purpose of the `items()` method in a dictionary?

How do you check if a key exists in a dictionary?

How do you convert a list of tuples into a dictionary?

How do you store dictionary keys in a list?

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Python Strings and Lists

Choose a study mode

Podcast

Questions and Answers

What is the purpose of the len() function in Python?

How do you access a character in a string in Python?

What is the syntax for slicing in Python?

What operation is performed on strings using the + symbol?

What is the difference between '2' and 2 in Python?

What happens when you try to concatenate a string with an integer in Python?

What is the purpose of the str() function in Python?

What is the result of using a string method on a string in Python?

What is the purpose of the len() function in Python?

How do you check if an item is present in a list in Python?

What is the difference between a list and a tuple in Python?

What is the purpose of the append() method in a list in Python?

What is the primary difference between a list and a dictionary in Python?

How do you get all the keys in a dictionary?

What is the purpose of the items() method in a dictionary?

How do you check if a key exists in a dictionary?

How do you convert a list of tuples into a dictionary?

How do you store dictionary keys in a list?

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What is the purpose of the `items()` method in a dictionary?