some emoticon tests

learning_python3.md

@@ -120,7 +120,8 @@ print("my name is Wouter")
 print("I'm", 35, "years old")
 ```
 
-__🏃 Try it__
+🏃 Try it
+---
 
 Try printing different lines and with combinations of different object types such as `int`, `float` and `str`.
 What happens if you *add* (`+`) values to one another?
@@ -140,7 +141,8 @@ While it works perfectly well it's not super *readable*.
 We can improve the readability by using either string replacement or string formatting.
 My personal preference is string formatting.
 
-__🏃 Try it__
+🏃 Try it
+---
 
 Have a look at both ways illustrated below and try them out.
 
@@ -151,7 +153,7 @@ Have a look at both ways illustrated below and try them out.
 name = "Wouter"
 age = "35"
 
-print("Hello, my name is {name} and I'm {age} years old.")
+print(f"Hello, my name is {name} and I'm {age} years old.")
 ```
 
 ## String formatting
@@ -191,6 +193,9 @@ The shell is more *verbose* and will explicitly tell you what a function returns
 
 So, functions can **return** something but how can we *use* the returned objects?
 This is where **variables** come in handy.
+The `input` function will **always** return an object of type `str`.
+If we want to use this object later in our code we need to add a *post-it* to it so we can reference it later.
+Remember that the object is created by the function call, and we add the reference after the object's creation.
 
 ```python3
 print("What is your name? ")
@@ -198,8 +203,47 @@ answer = input()
 print("Well hello", answer, "!")
 ```
 
+**When looking at the code block above did you notice the *empty space* I added after my question?
+Can you tell me why I did that?**
+
+🏃 Try it
+---
+
+Try playing around with the `input` function and incorporate the different ways to print with it.
+Ask multiple questions and combine the answers to print on one line.
+
 ## Functions can take arguments
 
+Some, if not most, functions will take one or more arguments when calling them.
+This might sound complicated but you've already done this!
+The `print` function takes *a-message-to-print* as an argument, or even multiple ones as you probably noticed when playing around.
+
+The `input` function *can* take arguments but as we've seen does not *require* an argument.
+When looking at the documentation we can discover **what** the function does, how to **call** the function and what it **returns**.
+
+⛑ **CTRL-q opens the documentation in pycharm**
+
+```
+Help on built-in function input in module builtins:
+
+input(prompt=None, /)
+    Read a string from standard input.  The trailing newline is stripped.
+    
+    The prompt string, if given, is printed to standard output without a
+    trailing newline before reading input.
+    
+    If the user hits EOF (*nix: Ctrl-D, Windows: Ctrl-Z+Return), raise EOFError.
+    On *nix systems, readline is used if available.
+```
+
+We can add one **argument** inside the `input` call which serves as a prompt.
+Now which `type` should the object we pass to `input` be?
+The most logical type would be a `str` that represents the *question* to ask the user no?
+Let's try it out.
+
+```python3
+```
+
 # Taking input and evaluation
 
 TODO say hello plus ask for age