We use requests_throttler Python module to throttle the web requests. First, install the module and configure our recipe using the following script:

$ sh 11_10_requests_throttling.sh
#!/bin/bash
####################################################
# Python Network Programming Cookbook, Second Edition -- 
Chapter - 11
####################################################
    
# Download and extract RequestsThrottler
wget https://pypi.python.org/packages/d5/db/fc7558a14efa163cd2d3e4515cdfbbfc2dacc1d2c4285b095104c58065c7/RequestsThrottler-0.1.0.tar.gz
tar -xvf RequestsThrottler-0.1.0.tar.gz
cd RequestsThrottler-0.1.0
    
# Copy our recipe into the folder
cp ../11_10_requests_throttling.py requests_throttler
    
# Configure and Install RequestsThrottling
python setup.py build
sudo python setup.py install