New exercises

Author: Shehab Abdel-Salam

chapters/chapter01_intro/main.py

@@ -1,4 +1,3 @@
-# no
 # This is your playground.
 # Feel free to experiment with the code under `main()` block and run it as many times as you want.
 # Try to run `python main.py` in the terminal from the current directory (chapter01_intro).

chapters/chapter02_variables/exercises/exercise_ch2_02.py

@@ -1,9 +1,9 @@
-# Exercise 02_02 - Average Grade
-# Write a program that takes three grades (int or float) from a user and calculate the average grade (float).
-# The average grade should be **rounded to two decimal places**.
+# Exercise 02_02 - Temperature Conversion
+# Write a program that converts a temperature from Celsius to Fahrenheit.
+# Hint: The formula is: F = C * 9/5 + 32
 
 
-def compute_average_grade(grade1, grade2, grade3):
+def celsius_to_fahrenheit(celsius):
     # Your code should go here.
 
     return ...

chapters/chapter02_variables/exercises/exercise_ch2_04.py

@@ -1,7 +1,8 @@
-# Exercise 02_05 - Difference in Length
+# Exercise 02_04 - Difference in Length
 # Write a program that returns the length difference between two words.
 # For example, given the words "Python" and "Programming", the function should return 3.
 # Note: The function should return the absolute value of the difference.
+# Hint: Can a built-in function help us here?
 
 
 def compute_length_difference(word1, word2):

chapters/chapter02_variables/exercises/exercise_ch2_05.py

@@ -1,9 +1,9 @@
-# Exercise 02_05 - Temperature Conversion
-# Write a program that converts a temperature from Celsius to Fahrenheit.
-# Hint: The formula is: F = C * 9/5 + 32
+# Exercise 02_05 - Average Grade
+# Write a program that takes three grades (int or float) from a user and calculate the average grade (float).
+# The average grade should be **rounded to two decimal places**.
 
 
-def celsius_to_fahrenheit(celsius):
+def compute_average_grade(grade1, grade2, grade3):
     # Your code should go here.
 
     return ...

chapters/chapter02_variables/tests/test_ch02.py

@@ -1,8 +1,8 @@
 from ..exercises.exercise_ch2_01 import hours_to_seconds
-from ..exercises.exercise_ch2_02 import compute_average_grade
+from ..exercises.exercise_ch2_02 import celsius_to_fahrenheit
 from ..exercises.exercise_ch2_03 import add_numbers
 from ..exercises.exercise_ch2_04 import compute_length_difference
-from ..exercises.exercise_ch2_05 import celsius_to_fahrenheit
+from ..exercises.exercise_ch2_05 import compute_average_grade
 from ..exercises.exercise_ch2_06 import convert_binary_to_decimal
 from ..exercises.exercise_ch2_07 import calculate_gravity_force
 

chapters/chapter08_files/exercises/exercise_ch8_05.py

@@ -1,6 +1,22 @@
-# Exercise 08_05 - File Handler
-# Write a custom context manager using a class FileHandler that opens
-# and closes a file. Use it to read from data.txt.
+# Exercise 08_05 - File Checker
+# Check if the numbers in the file are sorted in ascending order.
 
+# Example: file1.txt
+# 1
+# 2
+# 3
+#
+# should return True.
 
-class FileHandler: ...
+# Example: file2.txt
+# 1
+# 3
+# 2
+#
+# should return False.
+
+
+def is_file_sorted(file_name: str) -> bool:
+    # Your code should go here.
+
+    ...

chapters/chapter08_files/exercises/exercise_ch8_06.py

@@ -0,0 +1,6 @@
+# Exercise 08_06 - File Handler
+# Write a custom context manager using a class FileHandler that opens
+# and closes a file. Use it to read from data.txt.
+
+
+class FileHandler: ...

chapters/chapter11_standard_library/exercises/exercise_ch11_05.py

@@ -0,0 +1,8 @@
+# Exercise 11_05 - Cached Fibonacci
+# Given this fibonacci function, we want to cache the results using `functools.lru`.
+
+
+def compute_fibonacci(n: int) -> int:
+    # Your code should go here.
+
+    ...

chapters/chapter11_standard_library/exercises/exercise_ch11_06.py

@@ -0,0 +1,22 @@
+# Exercise 11_06 - Log This
+# Given this "RateInterestCalculator" class with two methods,
+# we need to replace the print() messages with log statements instead with
+# the appropriate Log Level.
+
+# Can you fix this?
+
+
+class RateInterestCalculator:
+    def __init__(self) -> None:
+        pass
+
+    def foo():
+        print("Info - ...")
+        ...
+        print("ERROR - something happened")
+
+    def bar():
+        print("Info - ...")
+
+    def _baz():
+        print("debug - ....")

chapters/chapter11_standard_library/exercises/exercise_ch11_07.py

@@ -0,0 +1,16 @@
+# Exercise 11_07 - Parse transaction files
+# Given this "RateInterestCalculator" class with two methods,
+# we need to replace the print() messages with log statements instead with
+# the appropriate Log Level.
+
+# Can you fix this?
+
+from datetime import datetime
+
+
+class Transaction:
+    timestamp: str  # Replace with `datetime`
+    description: str
+
+
+def parse_transactions(filename): ...