  ```
import os
import sys
from pyaedt import Hfss
from pyaedt import Q3D
from pyaedt import EDB

# Set up project files and paths
project_path = "C:\\Users\\user\\Desktop\\project_files"
project_name = "project_name"
project_file = "project_file.aedt"

# Download project file
if not os.path.exists(project_path):
    os.makedirs(project_path)
if not os.path.exists(project_file):
    os.system("wget https://www.example.com/project_file.aedt -O " + project_path + "\\" + project_file)

# Set up temporary project directory
temp_project_path = "C:\\Users\\user\\Desktop\\temp_project_files"
if not os.path.exists(temp_project_path):
    os.makedirs(temp_project_path)

# Open EDB project
edb = EDB(project_path + "\\" + project_file)

# Create cutout on selected nets
edb.create_cutout_on_selected_nets()

# Export to Q3D
q3d = Q3D(project_path + "\\" + project_file)

# Identify pin locations on components to define sources and sinks
q3d.identify_pin_locations()

# Append Z elevation
q3d.append_z_elevation()

# Save and close EDB
edb.save_project()
edb.close_project()

# Open Hfss 3D Layout to generate 3D model
hfss = Hfss(project_path + "\\" + project_file)

# Export layout to Q3D
q3d.export_layout_to_q3d(hfss)

# Launch Q3D project
q3d.launch_project()

# Plot project
q3d.plot_project()

# Assign sources and sinks on nets using previously calculated positions
q3d.assign_sources_and_sinks()

# Create setup and frequency sweep
q3d.create_setup("DC_Sweep")
q3d.create_frequency_sweep(1e9, 2e9, 100)

# Analyze project
q3d.analyze_project()

# Compute ACL and ACR solutions
q3d.compute_acl_and_acr_solutions()

# Plot ACL and ACR solutions
q3d.plot_acl_and_acr_solutions()

# Release desktop
q3d.release_desktop()
```