In this post, you'll learn how to build a fun project called "Band Name Generator." But before that, I’d like to explain some fundamental concepts used in building the project.
I started the amazing #100DaysOfCode challenge today, and I picked up Python Crash Course by Angela Yu to unlearn, relearn, and refresh my Python skills as a developer.
Python is a fun programming language to learn, especially if you're just starting out as a developer. It has an easy-to-read syntax and allows you to build real-world relatable projects while learning.
Here are some of the things I learned on Day 1:
String Manipulation
Python gives us the flexibility to manipulate strings. You might ask, what is a string?
A string is a collection of characters arranged together in a linear format. Examples include:
"Great""linux123""Hello World!"
Error Types
As a Python developer, understanding the types of errors you encounter will help you ask the right questions when searching for solutions.
Here are some basic error types I learned on Day 1:
1. IndentationError
This error occurs when indentation is used incorrectly in your code.
Example:
```python id="i8l5n1"
print("Hello")
Python relies heavily on proper indentation, especially inside functions, loops, and conditionals.
---
### 2. SyntaxError
This error occurs when you do not follow the correct syntax of the language.
Example:
```python id="g42bh3"
print("Hello)
Correct version:
```python id="5bj62q"
print("Hello")
The first example is missing the closing quotation mark.
---
### 3. NameError
This error occurs when you reference a variable name that has not been declared.
Example:
```python id="6h0t5r"
name = "Richard"
print(nama)
The code above will result in a NameError because nama was never defined.
4. TypeError
This error occurs when you try to perform an operation between incompatible data types.
Example:
```python id="5d5e8x"
data = "Skyscrappers"
print("We currently have " + len("three") + data)
This will result in a `TypeError` because `len("three")` returns a number, and Python cannot concatenate a string with an integer directly.
Correct version:
```python id="9l2qj8"
data = "Skyscrappers"
print("We currently have " + str(len("three")) + " " + data)
The str() function converts the number into a string, allowing Python to process the concatenation correctly.
Variables
A variable is a storage container used to hold data for future use.
Example:
```python id="bx38d4"
taxID = 1234567890
---
## **len()**
The `len()` function helps us count the number of characters in a string.
Example:
```python id="wb06dc"
len("Hello")
input()
The input() function allows us to collect data from users for further processing.
Example:
```python id="2jlwmn"
input("What is your name?")
---
## **str()**
The `str()` function converts other data types into strings.
Example:
```python id="3b7e1u"
str(4)
print()
The print() function is one of the most commonly used functions in Python. It displays output in the terminal.
Example:
```python id="q9m4t0"
print("Can I come now?")
---
Now that you understand the basics, let’s build our Band Name Generator app.
# Band Name Generator
```python id="yojv2n"
# Declare variables to store city and pet name
city = input("Which city did you grow up in?\n")
petName = input("What is your favorite pet's name?\n")
# Display the final band name using concatenation
print("Yup! Your band name is " + city + " " + petName)
If you found this interesting, share your thoughts in the comment section.
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