.github/workflows/links_checker.yml

@@ -0,0 +1,23 @@
+name: LinksChecker
+
+on:
+  # Triggers the workflow on push or pull request events but only for the "master" branch
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  links-checker-job:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v3
+
+      - name: Call the action jetbrains-academy/links-checker-action
+        uses: jetbrains-academy/links-checker-action@main
+        with:
+          dir: ./

.gitignore

@@ -135,4 +135,7 @@ dmypy.json
 !.idea/codeStyles/*
 !.idea/vcs.xml
 .idea/
-*.iml
+*.iml
+
+# Course files that shouldn't be committed
+/.coursecreator/

Classes and objects/Call a method from another method/task-remote-info.yaml

@@ -1 +1 @@
-id: 615106464
+id: 615106464

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

@@ -2,4 +2,6 @@
 
 As we discussed before, methods may call other methods by using method attributes of the `self` argument.
 Use this knowledge to complete the `exponentiate` method of the `Calculator` class. It should
-call the `multiply` method to calculate the result.
+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?utm_source=jba&utm_medium=jba_courses_links).

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

@@ -7,4 +7,6 @@ all added city names.
 
 Implement the method `add_city` that will append a city name to the `all_cities` list. Do not forget to delete the `pass` statement!
 
-In the `__init__` method, call the `add_city` method to add the city name to the list upon object initialization.
+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?utm_source=jba&utm_medium=jba_courses_links).

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

@@ -36,6 +36,9 @@ 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?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 
 below prints a line like this: `"This is Doggy the dog, one of my pets."` for each of the pets.
 

Classes and objects/Definition/task.md

@@ -43,7 +43,10 @@ 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.
 
-Assign a value to  `variable` inside `MyClass` and create an object `my_class` of the class `MyClass()`. 
+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_object` of the class `MyClass()`. 
 Run the code and see what happens!
 
 <div class='hint'>Assign any value to <code>variable</code>.</div>

Classes and objects/Special __init__ method/task.md

@@ -36,7 +36,9 @@ 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?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 
 create it with a specified color and brand.  
 

Classes and objects/The self parameter/task.md

@@ -22,6 +22,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 In the code editor, implement the `add` method of the `Calculator` class. It should 
 add `amount` to the field `current`.  In addition, complete the method `get_current`.
 Run the code to see how it works.

Classes and objects/Update variable/task.md

@@ -4,6 +4,8 @@ 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?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>
 <div class='hint'>Change the color using value assignment (<code>=</code>) and 

Classes and objects/Variable access/task.md

@@ -17,7 +17,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Check out our example and print the value of `variable1` from `my_object`.  
 Call the `foo` method of the object `my_object`, print the result.
 

Classes and objects/__str__ vs __repr__/str_and_repr.py

@@ -4,7 +4,7 @@ def __init__(self, real_part, imag_part):
         self.img = imag_part
 
     def __repr__(self):
-        return f'Complex(10, 20)'
+        return f'Complex({self.real}, {self.img})'
 
     def __str__(self):
         return f'{self.real} + i{self.img}'

Classes and objects/__str__ vs __repr__/task-info.yaml

@@ -1,16 +1,16 @@
 type: edu
 files:
-- name: str_and_repr.py
-  visible: true
-  placeholders:
-  - offset: 438
-    length: 46
-    placeholder_text: ???
-  - offset: 524
-    length: 45
-    placeholder_text: ???
-- name: tests/__init__.py
-  visible: false
-- name: tests/test_task.py
-  visible: false
-feedback_link: https://docs.google.com/forms/d/e/1FAIpQLSfRlDlldKfuq-cHMNFfHMER61P1PRIan7KG6yp1GvaweDI7GA/viewform?usp=pp_url&entry.2103429047=Classes+and+Objects+/+str+vs+repr
+  - name: str_and_repr.py
+    visible: true
+    placeholders:
+      - offset: 455
+        length: 46
+        placeholder_text: ???
+      - offset: 541
+        length: 45
+        placeholder_text: ???
+  - name: tests/__init__.py
+    visible: false
+  - name: tests/test_task.py
+    visible: false
+feedback_link: https://docs.google.com/forms/d/e/1FAIpQLSfRlDlldKfuq-cHMNFfHMER61P1PRIan7KG6yp1GvaweDI7GA/viewform?usp=pp_url&entry.2103429047=Classes+and+Objects+/+str+vs+repr

Classes and objects/__str__ vs __repr__/task.md

@@ -27,6 +27,9 @@ 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?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:
 `"My siamese cat's name is Lucy"`;  `__repr__` method should return a string like this:
 `"Cat, breed: siamese, name: Lucy"`. Use [f-strings](course://Strings/F-strings).

Condition expressions/Boolean operators order/task.md

@@ -3,6 +3,9 @@
 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?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`.
 
 <div class='hint'>Combine the <code>and</code> and <code>or</code> keywords.</div>

Condition expressions/Boolean operators/task.md

@@ -5,6 +5,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Write an expression that evaluates to `True` if `name` is equal to `"John"` and
 he is `16` or older.  
 

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

@@ -41,6 +41,9 @@ 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?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.  
 
 <div class='hint'>Use the <code>if</code> keyword and the <code>==</code> operator.</div>

Condition expressions/If statement/task.md

@@ -26,6 +26,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Print `"Not an empty list!"` if the `tasks` list is not empty.  
 After the list is cleared, check again (you might need a different condition!) and print `'Now empty!'` if it is.
 

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

@@ -1,4 +1,9 @@
-## Single-line if-else statement
+As you saw in the previous tasks, a simple `if-else` statement can in fact be written as a single line.
 
-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.
+### Task
+Rewrite the statement in the code editor so that it
+fits in one line but the results of its execution remain exactly the same:
+- If `my_random_number` is greater than 50, the program should print the value of `my_random_number`.
+- Otherwise, it should print the message `"Too small!"`.
+
+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

@@ -25,6 +25,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Add Jared's (`"Jared"`) number `570` to the phone book.
 Remove Gerard's number from the phone book.
 Print Jane's phone number from the `phone_book`.  

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

@@ -14,6 +14,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Print all values from the `phone_book` .  
 
 <div class='hint'>Use the method <code>values()</code>.</div>

Data structures/Dictionary keys/task.md

@@ -2,6 +2,6 @@
 
 Try to figure out what's wrong with this dictionary and fix it.
 
-<div class="hint">Remember that dictionary keys can only be immutable types? You could replace the list with several individual key:value pairs with 
-keys of type <code>str</code> or with a tuple.</div>
-<div class="hint">Remember that keys need to be unique? You could rename one of the 'Bob' keys.</div>
+When fixing, be aware of the following requirements
+- Since dictionary keys can only be of immutable types, replace the list with several individual `key:value` pairs with keys of type `str` or with a tuple.
+- Since keys need to be unique, rename one of the `Bob` keys to a name of your choice.

Data structures/In keyword/task.md

@@ -8,6 +8,8 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
 <div class="hint">Use the <code>in</code> keyword.</div>
 
 <div class="hint">Use the <code>.values()</code> and <code>.keys()</code> attributes.</div>

Data structures/Join method/task.md

@@ -33,6 +33,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Assign a value to the  `joined` variable such that the `print` statement prints the following:
 ```text
 I like apples and I like bananas and I like peaches and I like grapes

Data structures/List items/task.md

@@ -7,6 +7,10 @@ This way you can even change the size of a list or clear it entirely by doing so
 animals[:] = []
 ```
 
+### Task
 Make all `animals` elephants by replacing the last two items.  
+We suggest that you first run the program in the IDE without making any changes. This will allow you to see what the `animals` list looks like after all the operations have been performed.
 
 <div class='hint'>Use assignment to a slice as in examples.</div>
+
+<div class='hint'>You can assign a list consisting of several elements.</div>

Data structures/Lists introduction/task.md

@@ -17,6 +17,9 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Use list slicing to print `[4, 9, 16]`.  
 
 <div class='hint'>List slicing syntax looks just like that for strings: <code>lst[index1:index2]</code>.

Data structures/Lists operations/task.md

@@ -32,5 +32,8 @@ 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?utm_source=jba&utm_medium=jba_courses_links).
+
+### Task
 Replace `"dino"` with `"dinosaur"` in the `animals` list.  
 <div class='hint'>Use list indexing operation and value assignment.</div>

Data structures/Nested Lists/task.md

@@ -31,6 +31,9 @@ Output:
 ```text
 1
 ```
+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`. 
 
 <div class="hint">If you're stuck, review the examples in the task description again.</div>

Data structures/Tuples/task.md

@@ -40,7 +40,10 @@ 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?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'`. 
 You can run the code to see what it prints.  
 

File input output/Open file/input1.txt

@@ -1 +1 @@
-This is the entire file.
+outfile.txt

File input output/Open file/open_file.py

@@ -4,9 +4,9 @@
 
 
 with open('input1.txt', 'r') as file:
-    print(file.read())
+    outfile_name = file.readline()
 
 
-outfile = open('outfile.txt', 'w')  # Opening the file in write mode (using `w` argument)
+outfile = open(outfile_name, 'w')  # Opening the file in write mode (using the `w` argument)
 outfile.write('Hello World')  # Writing to the file, the write() method is explained later.
 outfile.close()

File input output/Open file/task-info.yaml

@@ -1,20 +1,23 @@
 type: edu
 files:
-- name: open_file.py
-  visible: true
-  placeholders:
-  - offset: 152
-    length: 37
-    placeholder_text: '# Open the file input1.txt in read mode using the with statement'
-  - offset: 397
-    length: 15
-    placeholder_text: '# Close the output file!'
-- name: input.txt
-  visible: true
-- name: input1.txt
-  visible: true
-- name: tests/__init__.py
-  visible: false
-- name: tests/test_task.py
-  visible: false
-feedback_link: https://docs.google.com/forms/d/e/1FAIpQLSfRlDlldKfuq-cHMNFfHMER61P1PRIan7KG6yp1GvaweDI7GA/viewform?usp=pp_url&entry.2103429047=File+Input+Output+/+Open+file
+  - name: open_file.py
+    visible: true
+    placeholders:
+      - offset: 152
+        length: 37
+        placeholder_text: '# Open the file input1.txt in read mode using the with statement'
+      - offset: 242
+        length: 12
+        placeholder_text: ???
+      - offset: 412
+        length: 15
+        placeholder_text: '# Close the output file!'
+  - name: input.txt
+    visible: true
+  - name: input1.txt
+    visible: true
+  - name: tests/__init__.py
+    visible: false
+  - name: tests/test_task.py
+    visible: false
+feedback_link: https://docs.google.com/forms/d/e/1FAIpQLSfRlDlldKfuq-cHMNFfHMER61P1PRIan7KG6yp1GvaweDI7GA/viewform?usp=pp_url&entry.2103429047=File+Input+Output+/+Open+file