diff --git a/assessment2.py b/assessment2.py
new file mode 100644
index 0000000..fbc3a06
--- /dev/null
+++ b/assessment2.py
@@ -0,0 +1,47 @@
+import importlib.util
+import os
+
+def get_module_size(module_name):
+    """Get the total number of bytes in the cached .pyc file or .py file of a module or package.
+
+    Args:
+        module_name (str): The name of the module or package.
+
+    Returns:
+        int: The total number of bytes in the cached .pyc file or .py file.
+    """
+    spec = importlib.util.find_spec(module_name)
+
+    if spec is not None and spec.has_location:
+        # If the module is found and has a location, check for .pyc file first
+        pyc_file_path = spec.origin + 'c'
+        if os.path.exists(pyc_file_path):
+            return os.stat(pyc_file_path).st_size
+        else:
+            # If .pyc file doesn't exist, check for .py file
+            py_file_path = spec.origin
+            if os.path.exists(py_file_path):
+                return os.stat(py_file_path).st_size
+
+    return 0  # Return 0 if no .pyc or .py file found
+
+
+import sys
+
+def get_total_module_size():
+    """Get the total number of bytes for all modules listed in sys.modules.
+
+    Returns:
+        int: The total number of bytes for all modules.
+    """
+    total_size = 0
+    for module_name in sys.modules:
+        module_size = get_module_size(module_name)
+        total_size += module_size
+
+    return total_size
+
+if __name__ == '__main__' and __package__ is None:
+    __spec__ = importlib.util.spec_from_file_location('__main__', __file__)
+total_size = get_total_module_size()
+print("Total size of all modules in sys.modules: {} bytes".format(total_size))
\ No newline at end of file
diff --git a/http-performance/testhh.py b/http-performance/testhh.py
index 0f87350..716e12a 100644
--- a/http-performance/testhh.py
+++ b/http-performance/testhh.py
@@ -1 +1,54 @@
-# for test
\ No newline at end of file
+'''
+import os
+from flask import Flask, Response
+from urllib.parse import urlparse
+
+app = Flask(__name__)
+
+@app.route('/')
+def index():
+    return 'Hello, welcome to the cat picture server!'
+
+@app.route('/<path:path>')
+def serve_jpeg(path):
+    if path.endswith('.jpg'):
+        file_path = path[1:]
+        if os.path.isfile(file_path):
+            with open(file_path, 'rb') as file:
+                return Response(file.read(), content_type='image/jpeg')
+        else:
+            return 'File not found', 404
+    else:
+        return 'Only .jpg files are allowed', 403
+
+if __name__ == '__main__':
+    app.run(host='0.0.0.0', port=8000)
+'''
+'''
+import os
+from fastapi import FastAPI
+from fastapi.responses import FileResponse
+from urllib.parse import urlparse
+
+app = FastAPI()
+
+@app.get('/')
+def index():
+    return 'Hello, welcome to the cat picture server!'
+
+@app.get('/{path:path}')
+async def serve_jpeg(path: str):
+    if path.endswith('.jpg'):
+        file_path = path[1:]
+        if os.path.isfile(file_path):
+            return FileResponse(file_path, media_type='image/jpeg')
+        else:
+            return {'detail': 'File not found'}, 404
+    else:
+        return {'detail': 'Only .jpg files are allowed'}, 403
+
+if __name__ == '__main__':
+    import uvicorn
+    uvicorn.run(app, host='0.0.0.0', port=8000)
+'''
+
diff --git a/test6.py b/test6.py
new file mode 100644
index 0000000..0050f9a
--- /dev/null
+++ b/test6.py
@@ -0,0 +1,33 @@
+'''
+import sys
+import importlib.util
+
+# Load only the sys module
+importlib.import_module('sys')
+
+# Check the type of the value associated with the 'os' key
+os_module = sys.modules['os']
+os_module_type = type(os_module)
+
+# Print the type of the value associated with the 'os' key
+print("Type of the value associated with the 'os' key in sys.modules: {}".format(os_module_type))
+'''
+'''
+import os
+print(type(os))
+'''
+
+import builtins
+
+# Access the os module from globals()
+os = globals().get('os', None)
+
+# Check if os module is available
+if os is not None:
+    # Call os.getlogin()
+    username = os.getlogin()
+    print("Username:", username)
+else:
+    print("os module not available")
+
+
diff --git a/test7.py b/test7.py
new file mode 100644
index 0000000..2365667
--- /dev/null
+++ b/test7.py
@@ -0,0 +1,54 @@
+import os
+import sys
+import importlib.util
+import types
+
+
+def get_bytecode_size(module_name):
+    """Get the size of the cached .pyc bytecode file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith('.py'):
+        pyc_file = importlib.util.cache_from_source(spec.origin)
+        if os.path.exists(pyc_file):
+            return os.path.getsize(pyc_file)
+    return 0
+
+
+def get_dso_size(module_name):
+    """Get the size of the DSO (Dynamic Shared Object) module file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith(('.so', '.dll')):
+        return os.path.getsize(spec.origin)
+    return 0
+
+
+def generate_module_report():
+    """Generate a report summarizing the module environment."""
+    total_modules = len(sys.modules)
+    bytecode_size = sum(get_bytecode_size(module_name) for module_name in sys.modules)
+    dso_size = sum(get_dso_size(module_name) for module_name in sys.modules)
+    python_size = sum(
+        sys.modules[module_name].__sizeof__()
+        for module_name in sys.modules
+        if isinstance(sys.modules[module_name], types.ModuleType)
+    )
+    total_size = bytecode_size + dso_size + python_size
+
+    # Calculate percentage of each type of module
+    bytecode_percent = bytecode_size / total_size * 100
+    dso_percent = dso_size / total_size * 100
+    python_percent = python_size / total_size * 100
+
+    # Generate the report
+    report = f"Total modules: {total_modules}\n"
+    report += f"Total size: {total_size} bytes\n"
+    report += f"Bytecode modules: {bytecode_percent:.2f}% ({bytecode_size} bytes)\n"
+    report += f"DSO modules: {dso_percent:.2f}% ({dso_size} bytes)\n"
+    report += f"Python code modules: {python_percent:.2f}% ({python_size} bytes)\n"
+
+    return report
+
+if __name__ == '__main__' and __package__ is None:
+    __spec__ = importlib.util.spec_from_file_location('__main__', __file__)
+    report = generate_module_report()
+    print(report)
diff --git a/test8.py b/test8.py
new file mode 100644
index 0000000..8ba0838
--- /dev/null
+++ b/test8.py
@@ -0,0 +1,259 @@
+'''
+import os
+import sys
+import importlib.util
+import types
+import inspect
+from collections import defaultdict
+
+
+def get_bytecode_size(module_name):
+    """Get the size of the cached .pyc bytecode file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith('.py'):
+        pyc_file = importlib.util.cache_from_source(spec.origin)
+        if os.path.exists(pyc_file):
+            return os.path.getsize(pyc_file)
+    return 0
+
+
+def get_dso_size(module_name):
+    """Get the size of the DSO (Dynamic Shared Object) module file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith(('.so', '.dll')):
+        return os.path.getsize(spec.origin)
+    return 0
+
+
+def generate_module_report():
+    """Generate a report summarizing the module environment."""
+    total_modules = len(sys.modules)
+    bytecode_size = sum(get_bytecode_size(module_name) for module_name in sys.modules)
+    dso_size = sum(get_dso_size(module_name) for module_name in sys.modules)
+    python_size = sum(
+        sys.modules[module_name].__sizeof__()
+        for module_name in sys.modules
+        if isinstance(sys.modules[module_name], types.ModuleType)
+    )
+    total_size = bytecode_size + dso_size + python_size
+
+    # Calculate percentage of each type of module
+    bytecode_percent = bytecode_size / total_size * 100
+    dso_percent = dso_size / total_size * 100
+    python_percent = python_size / total_size * 100
+
+    # Generate the report
+    report = f"Total modules: {total_modules}\n"
+    report += f"Total size: {total_size} bytes\n"
+    report += f"Bytecode modules: {bytecode_percent:.2f}% ({bytecode_size} bytes)\n"
+    report += f"DSO modules: {dso_percent:.2f}% ({dso_size} bytes)\n"
+    report += f"Python code modules: {python_percent:.2f}% ({python_size} bytes)\n"
+
+    # Generate histogram of module directory names
+    dir_histogram = defaultdict(int)
+    for module_name in sys.modules:
+        module_file = sys.modules[module_name].__file__
+        if module_file:
+            module_dir = os.path.dirname(module_file)
+            dir_histogram[module_dir] += 1
+
+    report += "\nModule Directory Histogram:\n"
+    for module_dir, count in dir_histogram.items():
+        report += f"{module_dir}: {'*' * count}\n"
+
+    return report
+
+
+if __name__ == '__main__' and __package__ is None:
+    script_path = inspect.getframeinfo(inspect.currentframe()).filename
+    __spec__ = importlib.util.spec_from_loader('__main__', None, origin=script_path)
+    report = generate_module_report()
+    print(report)
+'''
+'''
+import os
+import sys
+from importlib.util import find_spec
+
+def get_module_size(module):
+    spec = find_spec(module)
+    if spec is None:
+        return None
+    if spec.cached:
+        size = os.stat(spec.cached).st_size
+    else:
+        size = os.stat(spec.origin).st_size
+    return size
+
+def summarize_modules():
+    total_size = 0
+    byte_count = 0
+    dso_count = 0
+    py_count = 0
+    directory_histogram = {}
+    for module_name, module in sys.modules.items():
+        if module is None:
+            continue
+        size = get_module_size(module_name)
+        if size is None:
+            continue
+        total_size += size
+        if module_name.endswith('_bootstrap') or module_name.endswith('_bootstrap_external'):
+            continue
+        if module_name.startswith('_frozen_importlib'):
+            dso_count += 1
+            continue
+        if module_name.startswith('_'):
+            continue
+        if module.__file__.endswith('.pyc'):
+            byte_count += size
+        elif module.__file__.endswith(('.so', '.dll')):
+            dso_count += 1
+        else:
+            py_count += size
+        module_directory = os.path.dirname(os.path.abspath(module.__file__))
+        directory_histogram[module_directory] = directory_histogram.get(module_directory, 0) + 1
+
+    print(f"Total module size: {total_size} bytes")
+    print(f"Bytecode modules: {(byte_count/total_size)*100:.2f}% ({byte_count} bytes)")
+    print(f"DSO modules: {(dso_count/total_size)*100:.2f}% ({dso_count} modules)")
+    print(f"Python modules: {(py_count/total_size)*100:.2f}% ({py_count} bytes)")
+
+    print("Module directory histogram:")
+    for directory, count in directory_histogram.items():
+        print(f"{directory}: {'*' * count}")
+
+if __name__ == '__main__':
+    summarize_modules()
+'''
+'''
+import os
+import sys
+from importlib.util import find_spec
+
+
+def get_module_size(module):
+    spec = find_spec(module)
+    if spec is None:
+        return None
+    if spec.cached:
+        size = os.stat(spec.cached).st_size
+    else:
+        size = os.stat(spec.origin).st_size
+    return size
+
+
+def summarize_modules():
+    total_size = 0
+    byte_count = 0
+    dso_count = 0
+    py_count = 0
+    directory_histogram = {}
+    for module_name, module in sys.modules.items():
+        if module is None:
+            continue
+        size = get_module_size(module_name)
+        if size is None:
+            continue
+        total_size += size
+        if module_name.endswith('_bootstrap') or module_name.endswith('_bootstrap_external'):
+            continue
+        if module_name.startswith('_frozen_importlib'):
+            dso_count += 1
+            continue
+        if module_name.startswith('_'):
+            continue
+        if module.__file__.endswith('.pyc'):
+            byte_count += size
+        elif module.__file__.endswith(('.so', '.dll')):
+            dso_count += 1
+        else:
+            py_count += size
+        module_directory = os.path.dirname(os.path.abspath(module.__file__))
+        directory_histogram[module_directory] = directory_histogram.get(module_directory, 0) + 1
+
+    print(f"Total module size: {total_size} bytes")
+    print(f"Bytecode modules: {(byte_count/total_size)*100:.2f}% ({byte_count} bytes)")
+    print(f"DSO modules: {(dso_count/total_size)*100:.2f}% ({dso_count} modules)")
+    print(f"Python modules: {(py_count/total_size)*100:.2f}% ({py_count} bytes)")
+
+    print("Module directory histogram:")
+    for directory, count in directory_histogram.items():
+        print(f"{directory}: {'*' * count}")
+
+
+if __name__ == '__main__':
+    summarize_modules()
+'''
+
+import os
+import sys
+import importlib.util
+import types
+from collections import defaultdict
+
+
+def get_bytecode_size(module_name):
+    """Get the size of the cached .pyc bytecode file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith('.py'):
+        pyc_file = importlib.util.cache_from_source(spec.origin)
+        if os.path.exists(pyc_file):
+            return os.path.getsize(pyc_file)
+    return 0
+
+
+def get_dso_size(module_name):
+    """Get the size of the DSO (Dynamic Shared Object) module file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith(('.so', '.dll')):
+        return os.path.getsize(spec.origin)
+    return 0
+
+
+def generate_module_report():
+    """Generate a report summarizing the module environment."""
+    total_modules = len(sys.modules)
+    bytecode_size = sum(get_bytecode_size(module_name) for module_name in sys.modules)
+    dso_size = sum(get_dso_size(module_name) for module_name in sys.modules)
+    python_size = sum(
+        sys.modules[module_name].__sizeof__()
+        for module_name in sys.modules
+        if isinstance(sys.modules[module_name], types.ModuleType)
+    )
+    total_size = bytecode_size + dso_size + python_size
+
+    # Calculate percentage of each type of module
+    bytecode_percent = bytecode_size / total_size * 100
+    dso_percent = dso_size / total_size * 100
+    python_percent = python_size / total_size * 100
+
+    # Generate the report
+    report = f"Total modules: {total_modules}\n"
+    report += f"Total size: {total_size} bytes\n"
+    report += f"Bytecode modules: {bytecode_percent:.2f}% ({bytecode_size} bytes)\n"
+    report += f"DSO modules: {dso_percent:.2f}% ({dso_size} bytes)\n"
+    report += f"Python code modules: {python_percent:.2f}% ({python_size} bytes)\n"
+
+    # Generate histogram of module directory names
+    dir_histogram = defaultdict(int)
+    for module_name in sys.modules:
+        module_file = sys.modules[module_name].__file__
+        if module_file:
+            module_dir = os.path.dirname(module_file)
+            dir_histogram[module_dir] += 1
+
+    report += "\nModule Directory Histogram:\n"
+    for module_dir, count in dir_histogram.items():
+        report += f"{module_dir}: {'*' * count}\n"
+
+    return report
+
+
+if __name__ == "__main__":
+    report = generate_module_report()
+    print(report)
+
+
+
+
diff --git a/test9.py b/test9.py
new file mode 100644
index 0000000..64bd63c
--- /dev/null
+++ b/test9.py
@@ -0,0 +1,72 @@
+import os
+import sys
+import importlib.util
+import types
+from collections import defaultdict
+from sys import getsizeof
+
+
+def get_bytecode_size(module_name):
+    """Get the size of the cached .pyc bytecode file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith('.py'):
+        pyc_file = importlib.util.cache_from_source(spec.origin)
+        if os.path.exists(pyc_file):
+            return os.path.getsize(pyc_file)
+    return 0
+
+
+def get_dso_size(module_name):
+    """Get the size of the DSO (Dynamic Shared Object) module file for a module."""
+    spec = importlib.util.find_spec(module_name)
+    if spec and spec.origin.endswith(('.so', '.dll')):
+        return os.path.getsize(spec.origin)
+    return 0
+
+
+def generate_module_report():
+    """Generate a report summarizing the module environment."""
+    total_modules = len(sys.modules)
+    bytecode_size = sum(get_bytecode_size(module_name) for module_name in sys.modules)
+    dso_size = sum(get_dso_size(module_name) for module_name in sys.modules)
+    python_size = sum(
+        getsizeof(sys.modules[module_name]) - getsizeof(module_name)
+        for module_name in sys.modules
+        if isinstance(sys.modules[module_name], types.ModuleType)
+    )
+    total_size = bytecode_size + dso_size + python_size
+
+    # Calculate percentage of each type of module
+    bytecode_percent = bytecode_size / total_size * 100
+    dso_percent = dso_size / total_size * 100
+    python_percent = python_size / total_size * 100
+
+    # Generate the report
+    report = f"Total modules: {total_modules}\n"
+    report += f"Total size: {total_size} bytes\n"
+    report += f"Bytecode modules: {bytecode_percent:.2f}% ({bytecode_size} bytes)\n"
+    report += f"DSO modules: {dso_percent:.2f}% ({dso_size} bytes)\n"
+    report += f"Python code modules: {python_percent:.2f}% ({python_size} bytes)\n"
+
+    # Generate histogram of module directory names
+    dir_histogram = defaultdict(int)
+    for module_name in sys.modules:
+        module_file = sys.modules[module_name].__file__
+        if module_file:
+            module_dir = os.path.dirname(module_file)
+            dir_histogram[module_dir] += 1
+
+    report += "\nModule Directory Histogram:\n"
+    for module_dir, count in dir_histogram.items():
+        report += f"{module_dir}: {'*' * count}\n"
+
+    return report
+
+
+if __name__ == "__main__":
+    # Set __spec__ attribute for the main module
+    if not hasattr(sys.modules['__main__'], '__spec__'):
+        sys.modules['__main__'].__spec__ = importlib.util.spec_from_file_location('__main__', __file__)
+
+    report = generate_module_report()
+    print(report)
\ No newline at end of file