> For the complete documentation index, see [llms.txt](https://thmflags.gitbook.io/thm-walkthroughs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://thmflags.gitbook.io/thm-walkthroughs/difficulty-info/python-basics.md).

# Python Basics

{% embed url="<https://tryhackme.com/room/pythonbasics>" %}
<https://tryhackme.com/room/pythonbasics>
{% endembed %}

| Room Attributes       | Value                                                                  |
| --------------------- | ---------------------------------------------------------------------- |
| Subscription Required | <mark style="color:green;background-color:green;">False</mark> \[Free] |
| Type                  | Walkthrough                                                            |
| Difficulty            | <mark style="color:blue;background-color:blue;">Info</mark>            |
| Tags                  | Python, Programming, Bitcoin                                           |

## Task 1 - Introduction to Python

### Run what's currently in the code editor by clicking the green "Run Code" button (on the right-hand side of your screen), and move onto the next task.

{% hint style="success" %}
No answer needed
{% endhint %}

## Task 2 - Hello World

### On the code editor, print "Hello World". What is the flag?

{% hint style="warning" %}
**HINT:** In the code editor (right-hand side), replace "Learn security with TryHackMe" with "Hello World" and click the green run code button.
{% endhint %}

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{PRINT_STATEMENTS}`

</details>

## Task 3 - Mathematical Operators

### In the code editor, print the result of 21 + 43. What is the flag?

{% hint style="warning" %}
**HINT:** In the code editor on the right, write the following: print(21 + 43)
{% endhint %}

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{PRINT_STATEMENTS}`

</details>

### Print the result of 142 - 52. What is the flag?

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{SUBTRCT}`

</details>

### Print the result of 10 \* 342. What is the flag?

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{MULTIPLICATION_PYTHON}`

</details>

### Print the result of 5 squared. What is the flag?

{% hint style="warning" %}
**HINT:** 5 \*\* 2
{% endhint %}

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{EXP0N3NT_POWER}`

</details>

## Task 4 - Variables and Data Types

### In the code editor, create a variable called height and set its initial value to 200.

{% hint style="success" %}
No answer needed
{% endhint %}

### On a new line, add 50 to the height variable.

{% hint style="success" %}
No answer needed
{% endhint %}

### On another new line, print out the value of height. What is the flag that appears?

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{VARIABL3S}`

</details>

## Task 5 - Logical and Boolean Operators

### Read the above section.

{% hint style="success" %}
No answer needed
{% endhint %}

## Task 6 - <mark style="color:green;background-color:green;">Shipping Project</mark> Introduction to If Statements

### In this exercise, we will code a small application that calculates and outputs the shipping cost for a customer based on how much they've spent. In the code editor, click on the "`shipping.py`" tab and follow the instructions to complete this task.

{% hint style="success" %}
No answer needed
{% endhint %}

### Once you've written the application in the code editor's `shipping.py` tab, a flag will appear, which is the answer to this question.

{% hint style="warning" %}
**HINT:** Need a hint? On the code editor, to the left of the "Run Code" button, there will be a hint button to help you get started.
{% endhint %}

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{IF_STATEMENT_SHOPPING}`

</details>

### In `shipping.py`, on line 12 (when using the Code Editor's Hint), change the **`customer_basket_cost`** variable to **101** and re-run your code. You will get a flag (if the total cost is correct based on your code); the flag is the answer to this question.

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{MY_FIRST_APP}`

</details>

## Task 7 - Loops

### On the code editor, click back on the "`script.py`" tab and code a loop that outputs every number from 0 to 50.

{% hint style="warning" %}
**HINT:** You can use a for loop or while loop, but it must print from 0 to 50.
{% endhint %}

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{L00PS_WHILE_FOR}`

</details>

## Task 8 - <mark style="color:green;background-color:green;">Bitcoin Project</mark> Introduction to Functions

### Once you've written the bitcoinToUSD function, use it to calculate the value of your Bitcoin in USD, and then create an if statement to determine if the value falls below $30,000; if it does, output a message to alert you (via a print statement).

{% hint style="warning" %}
**HINT:** Make sure your Python function has the name `bitcoinToUSD` and uses the parameter names `bitcoin_amount` and `bitcoin_value_usd`.
{% endhint %}

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{BITC0IN_INVESTOR}`

</details>

### 1 Bitcoin is now worth $25,000. In the code editor on line 14, update the `bitcoin_to_usd` variable value to 25000 and see if your Python program recognises that your investment is below the $30,000 threshold.

{% hint style="success" %}
No answer needed
{% endhint %}

## Task 9 - Files

### In the code editor, write Python code to read the flag.txt file. What is the flag in this file?

<details>

<summary>Reveal Flag <span data-gb-custom-inline data-tag="emoji" data-code="1f6a9">🚩</span></summary>

:triangular\_flag\_on\_post:`THM{F1LE_R3AD}`

</details>

## Task 10 - Imports

### Read the task and run the Python example code above in the code editor on the right.

{% hint style="success" %}
No answer needed
{% endhint %}