hyperskill links. Utm tags added

Author: zoyakostyreva

Classes and objects/Call a method from another method/task.md

@@ -4,4 +4,4 @@ As we discussed before, methods may call other methods by using method attribute
 Use this knowledge to complete the `exponentiate` method of the `Calculator` class. It should
 call the `multiply` method to calculate the result.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6931).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6931?utm_source=jba&utm_medium=jba_courses_links).

Classes and objects/Class and Instance Variables 2/task.md

@@ -9,4 +9,4 @@ Implement the method `add_city` that will append a city name to the `all_cities`
 
 In the `__init__` method, call the `add_city` method to add the city name to the list upon object initialization.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6981).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6981?utm_source=jba&utm_medium=jba_courses_links).

Classes and objects/Class and Instance Variables/task.md

@@ -36,7 +36,7 @@ one object, it will be changed for all objects of the class (check out the examp
 editor – see what `print(barsik.favorite_food)` will print). If you intend using a list to keep track 
 of features unique to each instance, you need to make it an instance attribute.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6677).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6677?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 In the code editor, complete the implementation of the `Animals` class so that the `print` statement 

Classes and objects/Definition/task.md

@@ -43,7 +43,7 @@ variable `x`.
 You can find out more about class definition syntax by reading <a href="https://docs.python.org/3/tutorial/classes.html#class-definition-syntax">this section</a>
 of Python Documentation.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6661).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6661?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Assign a value to  `variable` inside `MyClass` and create an object `my_class` of the class `MyClass()`. 

Classes and objects/Special __init__ method/task.md

@@ -36,7 +36,7 @@ x.num
 (3-4.5j)
 ```
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6669#def-__init).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6669#def-__init?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 In the code editor, add parameters to the`__init__()` method of the `Car` class, so we can 

Classes and objects/The self parameter/task.md

@@ -22,7 +22,7 @@ class Bag:
         self.add(x)
 ```
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6669#self).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6669#self?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 In the code editor, implement the `add` method of the `Calculator` class. It should 

Classes and objects/Update variable/task.md

@@ -4,7 +4,7 @@ In this exercise, create a new `Car` object `car2` and then set `color`
 of `car2` to `"red"`. Print the descriptions of `car1` and `car2` by calling the 
 `description` method.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6677#changing-attributes).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6677#changing-attributes?utm_source=jba&utm_medium=jba_courses_links).
 
 <div class='hint'>Remember how we instantiated objects in the previous task by 
 "calling" the class.</div>

Classes and objects/Variable access/task.md

@@ -17,7 +17,7 @@ then `MyClass.year` and `MyClass.say_hello` are valid attribute references retur
 integer and a function object, respectively. Class attributes can be 
 assigned to, so you can change the value of `MyClass.year` by assignment.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6661#class-attribute).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6661#class-attribute?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Check out our example and print the value of `variable1` from `my_object`.  

Classes and objects/__str__ vs __repr__/task.md

@@ -27,7 +27,7 @@ Also, if we think it would be useful to have a string representation for users,
 a `__str__` function. Check out another implementation of the class `Complex` in the code editor. Run the code
 to see what each of the two `print` statements prints.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/7139#str__-vs-__repr).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/7139#str__-vs-__repr?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Implement `__str__` and `__repr__` methods for the class `Cat`. `__str__` method should return a string like this:

Condition expressions/Boolean operators order/task.md

@@ -3,7 +3,7 @@
 Boolean operators are not evaluated from left to right. There's an order of operations for 
 boolean operators: `not` is evaluated first, `and` is evaluated next, and `or` is evaluated last.  
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6025).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6025?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Write an expression that evaluates to `True` if `name` is either `"John"` or `"Jane"` who are `16` or older, but younger than `25`.

Condition expressions/Boolean operators/task.md

@@ -5,7 +5,7 @@ operator `and` returns `True` when the expressions on both sides of `and` are `T
 The boolean operator `or` returns `True` when at least one expression on either side 
 of `or` is `True`. The boolean operator `not` inverts the boolean expression it precedes.  
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6025).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6025?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Write an expression that evaluates to `True` if `name` is equal to `"John"` and

Condition expressions/Else and elif parts in if statement/task.md

@@ -41,7 +41,7 @@ a += 1 if a > b else a -= 1
 ```
 </details>
 
-For more structured and detailed information, you can refer to [this](https://hyperskill.org/learn/step/5932) and [this](https://hyperskill.org/learn/step/5926) Hyperskill knowledge base pages.
+For more structured and detailed information, you can refer to [this](https://hyperskill.org/learn/step/5932?utm_source=jba&utm_medium=jba_courses_links) and [this](https://hyperskill.org/learn/step/5926?utm_source=jba&utm_medium=jba_courses_links) Hyperskill knowledge base pages.
 
 ### Task
 Print `True` if `name` is equal to `"John"` and `False` otherwise.  

Condition expressions/If statement/task.md

@@ -26,7 +26,7 @@ If you have only one statement to execute, you can put it on the same line as th
 if a > b: print("a is greater than b")
 ```
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5953).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5953?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Print `"Not an empty list!"` if the `tasks` list is not empty.  

Condition expressions/Single-line if-else statement/task.md

@@ -3,4 +3,4 @@
 As you saw in the previous tasks, a simple `if-else` statement can in fact be written as a single line. Rewrite the statement in the code editor so that it
 fits in one line but the results of its execution remain exactly the same.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5932#simple-if-else).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5932#simple-if-else?utm_source=jba&utm_medium=jba_courses_links).

Data structures/Dictionaries/task.md

@@ -25,7 +25,7 @@ You can access a value in a dictionary similarly to how you would access a value
 but using a key instead of an index. More info about this data structure can be found 
 <a href="https://docs.python.org/3/tutorial/datastructures.html#dictionaries">here</a>.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6481).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6481?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Add Jared's (`"Jared"`) number `570` to the phone book.

Data structures/Dictionary keys() and values()/task.md

@@ -14,7 +14,7 @@ followed by a dot.
 
 Read more about the operations that dictionaries support <a href="https://docs.python.org/3/library/stdtypes.html#typesmapping">here</a>.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/11096).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/11096?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Print all values from the `phone_book` .  

Data structures/In keyword/task.md

@@ -8,7 +8,7 @@ item. You can apply `in` to lists or dictionaries the same way you did it with s
 
 Please complete the task in the specified order.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/11096).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/11096?utm_source=jba&utm_medium=jba_courses_links).
 
 <div class="hint">Use the <code>in</code> keyword.</div>
 

Data structures/Join method/task.md

@@ -33,7 +33,7 @@ aa = bb = cc
 Python is a programming language
 ```
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6972#join-a-list).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6972#join-a-list?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Assign a value to the  `joined` variable such that the `print` statement prints the following:

Data structures/Lists introduction/task.md

@@ -17,7 +17,7 @@ squares + [36, 49, 64, 81, 100]
 
 You can explore lists in more detail by reading <a href="https://docs.python.org/3.9/tutorial/introduction.html#lists">this page</a>.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5979).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5979?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Use list slicing to print `[4, 9, 16]`.  

Data structures/Lists operations/task.md

@@ -32,7 +32,7 @@ squares
 
 Find out about many other useful list methods on <a href="https://docs.python.org/3/tutorial/datastructures.html#more-on-lists">this page</a>.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6031).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6031?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Replace `"dino"` with `"dinosaur"` in the `animals` list.  

Data structures/Nested Lists/task.md

@@ -31,7 +31,7 @@ Output:
 ```text
 1
 ```
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6938).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/6938?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 In the code editor, use indexing to access and print elements `9` and `10` from of the nested list `my_list`. 

Data structures/Tuples/task.md

@@ -41,7 +41,7 @@ values `12345`, `54321`, and `hello!` are packed together in a tuple.
 Some other list methods are also 
 applicable to tuples. You can read more about tuples <a href="https://docs.python.org/3/tutorial/datastructures.html#tuples-and-sequences">here</a>.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/7462).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/7462?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Print the length of the tuple `alphabet`. Then create a tuple with a single element `'fun_tuple'`. 

File input output/Open file/task.md

@@ -28,7 +28,7 @@ True
 **Important**: If you’re not using the `with` keyword, then you should call `f.close()` to close the file and 
 free up any system resources used by it. You cannot use the file object after it is closed, whether by a `with` statement or by calling `f.close()`.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8691).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8691?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 - In the code editor, open the file `input1.txt` in read mode, properly using the `with` statement. The `input1.txt` file stores the name of the file where the string `Hello World` should be output. Reading this name is already implemented in the `outfile_name` variable.

File input output/Read all lines/task.md

@@ -3,6 +3,6 @@
 ### Task
 Read all lines from the file input.txt into the list called `lines_list`. There are at least two different ways to do it.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8139#readlines).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8139#readlines?utm_source=jba&utm_medium=jba_courses_links).
 
 <div class="hint">Two possible solutions are discussed in the previous task.</div>

File input output/Read file/task.md

@@ -52,7 +52,7 @@ If you want to read all the lines of a file in a list, you can also use `list(f)
 
 For more details, check out the section [Methods of File Objects](https://docs.python.org/3/tutorial/inputoutput.html#methods-of-file-objects) in Python Tutorial.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8139).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8139?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Print the contents of "input.txt" to output by iterating over the lines of the file and printing each one.

File input output/Write to file/task.md

@@ -36,7 +36,7 @@ f.write('\n' + 'string,' + ' ' + 'another string')
 ```
 This will add a new line and write `'string, another string'`.
 
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8334).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/8334?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 In the code editor, **append** one new line to `output.txt` with all elements from the `zoo` list separated by `' and '`. 

Functions/Args and kwargs/task.md

@@ -24,7 +24,7 @@ after the `*args` parameter are [‘keyword-only’](https://peps.python.org/pep
 rather than positional arguments. Another way to call this function is shown in call 2, and it will give 
 us the same output.
 
-For more structured and detailed information, you can refer to [this ](https://hyperskill.org/learn/step/8560) and [this](https://hyperskill.org/learn/step/9544) Hyperskill knowledge base pages.
+For more structured and detailed information, you can refer to [this ](https://hyperskill.org/learn/step/8560?utm_source=jba&utm_medium=jba_courses_links) and [this](https://hyperskill.org/learn/step/9544?utm_source=jba&utm_medium=jba_courses_links) Hyperskill knowledge base pages.
 
 ### Task
 

Functions/Default parameters/task.md

@@ -19,7 +19,7 @@ Do not put spaces around the `=` symbol in function calls and definitions.
 Explore this topic further by reading <a href="https://docs.python.org/3/tutorial/controlflow.html#default-argument-values">this section</a>
 of Python Documentation.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/10295).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/10295?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 Add parameters to the `hello()` function and set a default value for the `name` parameter.  

Functions/Definition/task.md

@@ -21,7 +21,7 @@ my_function()  # function call
 
 Read more about defining functions in <a href="https://docs.python.org/3/tutorial/controlflow.html#defining-functions">this section</a> of Python Documentation.
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5900).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/5900?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
  - Call the function `my_function` inside the loop to repeat its invocation 5 times

Functions/Docstrings/task.md

@@ -6,7 +6,7 @@ A docstring for a function or method should summarize its behavior and document
 
 Docstrings should also generally be written for module, class and method definitions (you will learn about these things later on in the course). Read more about docstring conventions in the [Python PEP Guide](https://peps.python.org/pep-0257/).
 
-For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/11869).
+For more structured and detailed information, you can also refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/11869?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task 
 Add the following docstring to the function defined in the code editor:

Functions/Parameters and call arguments/task.md

@@ -35,7 +35,7 @@ TypeError                                 Traceback (most recent call last)
 
 TypeError: my_function() missing 1 required positional argument: 'surname'
 ```
-For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/7248).
+For more structured and detailed information, you can refer to [this Hyperskill knowledge base page](https://hyperskill.org/learn/step/7248?utm_source=jba&utm_medium=jba_courses_links).
 
 ### Task
 In the code editor, define a function that prints the square of a passed parameter.