diff --git a/PI_CalculationBlock.py b/PI_CalculationBlock.py
new file mode 100644
index 0000000..8855054
--- /dev/null
+++ b/PI_CalculationBlock.py
@@ -0,0 +1,34 @@
+class PiContainer:
+    def __init__(self, a=None):
+        self.a = a if a is not None else []
+
+    def mth(self, x):
+        if isinstance(x, list):
+            self.a += x
+        else:
+            self.a.append(x)
+
+
+def generate_pi_approximations(iterations):
+    total = 0
+    divisor = 1
+
+    for iteration_number in range(iterations):
+        try:
+            if iteration_number % 2 == 0:
+                total += 4 / divisor
+            else:
+                total -= 4 / divisor
+        except ZeroDivisionError as e:
+            yield f'Error: {e}'
+        else:
+            divisor += 2
+            yield total
+    yield 'finished'
+
+def enumerate_pi(pi: PiContainer):
+    for approximation in pi.a:
+        print(f'Next approximation: {approximation}')
+
+if __name__ == '__main__':
+    print('All functions are defined')
\ No newline at end of file
diff --git a/PI_TestScript.py b/PI_TestScript.py
new file mode 100644
index 0000000..842ffb5
--- /dev/null
+++ b/PI_TestScript.py
@@ -0,0 +1,38 @@
+from PI_CalculationBlock import PiContainer, generate_pi_approximations
+
+NUM_GENERATOR_CALLS = 194
+NUM_ITERATIONS = 23
+
+def my_enumerate(pi):
+    for actualPI in pi.a:
+        print(f'Next element: {actualPI}')
+
+if __name__ == '__main__':
+    try:
+        my_pi = PiContainer()
+        pi_gen = generate_pi_approximations(5)
+        for _ in range(5):
+            my_pi.mth(next(pi_gen))
+        my_pi_2 = PiContainer()
+        for _ in range(3):
+            my_pi_2.mth(next(pi_gen))
+    except StopIteration:
+        print('Generator has completed.')
+
+    pi_gen3 = generate_pi_approximations(NUM_GENERATOR_CALLS)
+    for _ in range(NUM_ITERATIONS):
+        try:
+            my_pi_2.mth(next(pi_gen3))
+        except StopIteration:
+            print('Generator has completed.')
+
+    my_pi_3 = PiContainer()
+    pi_gen = generate_pi_approximations(6)
+    my_pi_3.mth(list(pi_gen))
+    print('my first pi')
+    my_enumerate(my_pi)
+    print('my second pi')
+    my_enumerate(my_pi_2)
+
+    with open('result_Pi_Calculation.txt', 'w') as new_file:
+        new_file.write(f'my best pi: {my_pi_3.a[-1]}')
\ No newline at end of file
diff --git a/README.md b/README.md
index 5fdbab8..a0b694f 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 # The worst way to calculate π in Python
+# Add more info
 
 ### This project shows what should be avoided when creating Python projects.
 
@@ -6,4 +7,4 @@
 
 Your task is to clone this repository, create a new branch, fix all the issues and bad practises, add  file with list of all the changes and explanations why they are wrong. Then create a pull request with your branch, add your teacher as reviewer.
 
-(As this project is full of bad practises please do not use it as an example. It's for educational purposes only.)
+(As this project is full of bad practises please do not use it as an example. It's for educational purposes only.)