test2.py

@@ -0,0 +1,58 @@
+import time
+'''import matplotlib.pyplot as plt'''
+
+# Durations to measure in seconds
+durations = [0.01, 0.1, 1.0]
+
+# Number of repetitions
+num_repetitions = 100
+
+# Lists to store jitter for each duration
+jitter_10ms = []
+jitter_100ms = []
+jitter_1s = []
+
+# Function to measure jitter
+def measure_jitter(duration):
+    start_time = time.perf_counter_ns()
+    time.sleep(duration)
+    end_time = time.perf_counter_ns()
+    return end_time - start_time
+
+# Measure jitter for each duration and repeat for num_repetitions times
+for duration in durations:
+    for _ in range(num_repetitions):
+        jitter = measure_jitter(duration)
+        if duration == 0.01:
+            jitter_10ms.append(jitter)
+        elif duration == 0.1:
+            jitter_100ms.append(jitter)
+        elif duration == 1.0:
+            jitter_1s.append(jitter)
+'''
+# Create histograms for each duration's jitter
+plt.hist(jitter_10ms, bins=10, color='r', alpha=0.5, label='10ms')
+plt.hist(jitter_100ms, bins=10, color='g', alpha=0.5, label='100ms')
+plt.hist(jitter_1s, bins=10, color='b', alpha=0.5, label='1s')
+plt.xlabel('Jitter (ns)')
+plt.ylabel('Frequency')
+plt.title('Jitter of time.sleep() for Different Durations')
+plt.legend()
+plt.show()
+'''
+
+import random
+import secrets
+
+# Create a dictionary with 1 million integer keys
+dict = {}
+
+for i in range(1000000):
+    # Generate a random 64-byte value as bytes
+    random_value = secrets.token_bytes(64)
+    # Convert the bytes value to hexadecimal representation
+    hex_value = random_value.hex()
+    # Add the key-value pair to the dictionary
+    dict[i] = hex_value
+
+print("Dictionary created with 1 million integer keys.")

test3.py

@@ -0,0 +1,51 @@
+
+class Vault:
+    def __init__(self):
+        self._treasure = "gold"
+        self._known_good_copy = self.__dict__.copy()
+
+    def __getattribute__(self, name):
+        if name == "treasure":
+            if self.__dict__ != self._known_good_copy:
+                print("Attribute deleted!")
+            return self._treasure
+        else:
+            return object.__getattribute__(self, name)
+
+    def __setattr__(self, name, value):
+        if name != "_treasure" and name != "_known_good_copy":
+            print("Attribute deletion detected!")
+            self._known_good_copy = self.__dict__.copy()
+        object.__setattr__(self, name, value)
+v = Vault()
+Vault.treasure = " haha monkeypatched"
+print(v.treasure)
+
+'''
+class Vault:
+    def __init__(self):
+        self._treasure = "gold"
+        self._known_good_copy = self.__dict__.copy()
+
+    def __get__(self, instance, owner):
+        if instance is None:
+            return self
+        else:
+            if instance.__dict__ != self._known_good_copy:
+                print("Attribute deleted!")
+            return self._treasure
+
+    def __set__(self, instance, value):
+        print("Attribute deletion detected!")
+        self._known_good_copy = instance.__dict__.copy()
+
+    def __delete__(self, instance):
+        print("Attribute deletion detected!")
+        self._known_good_copy = instance.__dict__.copy()
+
+    def __set_name__(self, owner, name):
+        self.name = name
+v = Vault()
+Vault._treasure = " haha monkeypatched"
+print(v._treasure)
+'''

test4.py

@@ -0,0 +1,17 @@
+import asyncio
+
+# Define a coroutine function
+async def greet(name):
+    print(f"Hello, {name}!")
+    await asyncio.sleep(1)
+    print(f"Goodbye, {name}!")
+
+# Call the coroutine function
+coroutine_obj = greet("Karen")
+
+# coroutine_obj is a coroutine object, not the actual execution of the coroutine
+
+# Use an event loop to run the coroutine
+loop = asyncio.get_event_loop()
+loop.run_until_complete(coroutine_obj)
+loop.close()

test5.py

@@ -0,0 +1,8 @@
+def think():
+    x=1
+    def think2():
+        nonlocal x
+        x=2
+    think2()
+    return x
+print(think())