🚀 Python Basics: My Journey From Scratch

When I first started learning Python, I didn’t know where to begin. But instead of jumping into frameworks or AI right away, I decided to master the basics properly — and that decision changed everything.

Here’s a quick snapshot of what I’ve learned so far, explained in my own words — raw, beginner-level, and real.

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🖨️ 1. The First Step: Print Statement

Let’s be honest — nothing feels more satisfying than printing Hello World for the first time!

print("Hello World")
print(7)
print(7.7)
print(True)
print("Hello", 1, 4.5, True)

You can print anything — strings, numbers, booleans, and even multiple values at once.

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🔠 2. Data Types

Python automatically figures out the type of data you're dealing with:

x = 5               # int
pi = 3.14           # float
flag = True         # bool
name = "Alice"      # str
z = 3 + 4j          # complex
l = [1, 2, 3]       # list
s = {1, 2, 3}       # set
t = (1, 2, 3)       # tuple
d = {"name": "Alice", "age": 25}  # dict

Each one of these types serves its own purpose. For example, list is mutable, but tuple is not. I found these differences fascinating as I explored further.

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🧮 3. Variables & Typing

Python is dynamically typed — no need to mention data type while declaring.

Also, stylish declaration was the most fascinating while pythonic thing i found.

a = 5
name = "Bibi Zainab"
x, y, z = 1, 2, 3     # multiple assignment
a = b = c = 0         # same value for all

And I also came across the difference between:

• Static Typing: (C++, Java)

• Dynamic Typing: (Python — type decided at runtime)

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🚫 4. Keywords & Identifiers

• Python has some reserved words like if, else, while, etc. Don’t use them as variable names.

• Identifiers (variable names) should:

  • Start with a letter or underscore

  • Not contain special characters or spaces

  • Not start with a number

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🧑‍💻 5. Taking User Input

a = int(input("Enter first number: "))
b = int(input("Enter second number: "))
result = a + b
print("Sum is:", result)

Just wrap input() inside int() or float() to typecast as needed.

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🔁 6. Type Conversion

Python handles some conversions on its own:

• Implicit Conversion
  int + float → float

• Explicit Conversion

    int("5")     # '5' (str) → 5 (int)
    float("2.7") # '2.7' → 2.7
  

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🔢 7. Literals

Different ways to represent numbers:

a = 0b0101  # binary
b = 0o310   # octal
c = 100     # decimal
d = 0x12c   # hexadecimal

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🟣 8. The None Keyword

Sometimes, I don’t want to assign any value yet — that’s where None comes in.

x = None

It’s like saying, “This exists, but hasn’t been set yet.”

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👀 What's Next?

In Part 2, I’ll walk through:

• How I built menu-driven programs

• Practiced using if-else

• Wrote my first mini-calculators and ATM-like interfaces

Believe me — that part gets exciting real fast! 🔥

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If you’re also learning Python or just started, feel free to share your journey or questions in the comments. I’d love to connect and grow together.

Let’s keep coding. 💻
#python #beginners #learning #devjourney #codewithme