To check a string against a set of strings, use in. Here's how you'd do it (and note that if is all lowercase and that the code within the if block is indented one level). One approach:

Feb 22, 2025 · Learn how to effectively use the if statement with strings in Python in this comprehensive guide. Explore various techniques for string comparison, including case-insensitive checks and membership testing using the in keyword.

Dec 29, 2021 · I tried to write the if statement (all columns are strings) below. Basically, if there is something (any value) in df[A], then the new column value will be a concatenation of columns A, B and C. If there is no value in df[A], then it will concatenate columns B and C.

Mar 3, 2022 · Basic if Statement. In Python, if statements are a starting point to implement a condition. Let’s look at the simplest example: if <condition>: <expression> When <condition> is evaluated by Python, it’ll become either True or False (Booleans).

Apr 4, 2025 · Conditional statements in Python are used to execute certain blocks of code based on specific conditions. These statements help control the flow of a program, making it behave differently in different situations. If Conditional Statement in Python. If statement is the simplest form of a conditional statement.

These conditions can be used in several ways, most commonly in "if statements" and loops. An "if statement" is written by using the if keyword. In this example we use two variables, a and b, which are used as part of the if statement to test whether b is greater than a.

String comparison is a common operation in programming, and Python provides several ways to compare strings. The most basic and commonly used method is using the equality operator (==). This operator compares two strings and returns True if …

These constructs allow you to make decisions and repeat operations, forming the backbone of algorithmic thinking in Python. Conditional Statements in Python. Conditional statements allow your program to make decisions based on certain conditions, executing different blocks of code depending on whether these conditions evaluate to True or False.

Mar 7, 2023 · In this article, we have seen several examples of how to use these statements in Python, including checking if a number is even or odd, assigning a letter grade based on a numerical score, checking if a year is a leap year, and checking if …

Mar 7, 2025 · This blog post will cover the basic concepts, usage methods, common practices, and best practices related to Python `if` statements. In Python, the `if` statement is a fundamental control flow structure that allows you to make decisions in your code.