Welcome folks today in this tutorial we will be making a distance-time calculator desktop app using the google maps distance matrix api in python full project for beginners. All the source code of the application is shown below.
Get Started
In order to get started you need to install the following libraries inside your python project by using the pip command
pip install tkinter
pip install requests
pip install json
Now after installing all these libraries make an app.py file and copy paste the following code
app.py
# Python3 program to create Distance
# Time GUI calculator using Tkinter
# import everything from tkinter modules
from tkinter import *
# import modules
import requests, json
# Function for finding distance
# and duration between two places
def result(source, destination, travel_modes):
# Enter your API key here
api_key = 'Your_api_key'
# base variable to store base url
base = 'https://maps.googleapis.com/maps/api/distancematrix/json?'
# Check travel modes
if travel_modes == "train":
# complete_url variable to store complete url address
complete_url = base + 'origins='+source+"&destinations="+destination+"&mode=transit&transit_mode=train&key="+api_key
# get method of requests module
# return response object
r = requests.get(complete_url)
else:
# complete_url variable to
# store complete url address
complete_url = base + 'origins =' + source+ \
'&destinations ='+ destination + \
'&mode ='+travel_modes+'&key ='+ api_key
# get method of requests module
# return response object
r = requests.get(complete_url)
# json method of response object convert
# json format data into python format data
x = r.json()
# x contains list of nested dictionaries
# we know dictionary contains key value pair
# Extracting useful information
# from x dictionary
row = x['rows'][0]
cell = row['elements'][0]
# Check value corresponding to
# status key in cell dictionary
if cell['status'] == 'OK' :
# insert method inserting the
# value in the text entry box.
# Extracting useful information
# from cell dictionary and inserting
# into the respective text fields.
distance_field.insert(10, cell['distance']['text'])
duration_field.insert(10, cell['duration']['text'])
else :
# insert method inserting the
# value in the text entry box.
# Extract value corresponding to
# status key from cell dictionary and
# inserting into the respective text fields.
mode_field.insert(10, cell['status'])
distance_field.insert(10, cell['status'])
# Function for getting values from
# respective text entry boxes and
# calling result function .
def find() :
# get method returns current text
# as a string from text entry box
source = source_field.get()
destination = destination_field.get()
travel_modes = mode_field.get()
# Calling result() Function
result(source, destination, travel_modes)
# Function for inserting the train string
# in the mode_field text entry box
def train() :
mode_field.insert(10, "train")
# Function for inserting the driving string
# in the mode_field text entry box
def driving() :
mode_field.insert(10, "driving")
# Function for inserting the walking string
# in the mode_field text entry box
def walking() :
mode_field.insert(10, "walking")
# Function for clearing the contents
# of source_field, distance_field,
# duration_field text entry boxes.
def del_source() :
source_field.delete(0, END)
distance_field.delete(0, END)
duration_field.delete(0, END)
# Function for clearing the contents of
# destination_field, distance_field,
# duration_field text entry boxes.
def del_destination() :
destination_field.delete(0, END)
distance_field.delete(0, END)
duration_field.delete(0, END)
# function for clearing the contents of mode_field,
# distance_field, duration_field text entry boxes.
def del_modes() :
mode_field.delete(0, END)
distance_field.delete(0, END)
duration_field.delete(0, END)
# Function for clearing the
# contents of all text entry boxes
def delete_all() :
source_field.delete(0, END)
destination_field.delete(0, END)
mode_field.delete(0, END)
distance_field.delete(0, END)
duration_field.delete(0, END)
# Driver code
if __name__ == "__main__" :
# Create a GUI window
root = Tk()
# Set the background colour of GUI window
root.configure(background = 'light green')
# Set the configuration of GUI window
root.geometry("500x300")
# Create a welcome to distance time calculator label
headlabel = Label(root, text = 'welcome to distance time calculator',
fg = 'black', bg = "red")
# Create a Source: label
label1 = Label(root, text = "Source:",
fg = 'black', bg = 'dark green')
# Create a Destination: label
label2 = Label(root, text = "Destination:",
fg = 'black', bg = 'dark green')
# Create a Choose travelling modes: label
label3 = Label(root, text = "Choose travelling modes: ",
fg = 'black', bg = 'red')
# Create a Distance: label
label4 = Label(root, text = "Distance:",
fg = 'black', bg = 'dark green')
# Create a Duration: label
label5 = Label(root, text = "Duration:",
fg = 'black', bg = 'dark green')
# grid method is used for placing
# the widgets at respective positions
# in table like structure .
headlabel.grid(row = 0, column = 1)
label1.grid(row = 1, column = 0, sticky ="E")
label2.grid(row = 2, column = 0, sticky ="E")
label3.grid(row = 3, column = 1)
label4.grid(row = 7, column = 0, sticky ="E")
label5.grid(row = 8, column = 0, sticky ="E")
# Create a text entry box
# for filling or typing the information.
source_field = Entry(root)
destination_field = Entry(root)
mode_field = Entry(root)
distance_field = Entry(root)
duration_field = Entry(root)
# grid method is used for placing
# the widgets at respective positions
# in table like structure .
# ipadx keyword argument set width of entry space .
source_field.grid(row = 1, column = 1, ipadx ="100")
destination_field.grid(row = 2, column = 1, ipadx ="100")
mode_field.grid(row = 5, column = 1, ipadx ="50")
distance_field.grid(row = 7, column = 1, ipadx ="100")
duration_field.grid(row = 8, column = 1, ipadx ="100")
# Create a CLEAR Button and attached
# to del_source function
button1 = Button(root, text = "CLEAR", bg = "red",
fg = "black", command = del_source)
# Create a CLEAR Button and attached to del_destination
button2 = Button(root, text = "CLEAR", bg = "red",
fg = "black", command = del_destination)
# Create a RESULT Button and attached to find function
button3 = Button(root, text = "RESULT",
bg = "red", fg = "black",
command = find)
# Create a CLEAR ALL Button and attached to delete_all function
button4 = Button(root, text = "CLEAR ALL",
bg = "red", fg = "black",
command = delete_all)
# Create a Train Button and attached to train function
button5 = Button(root, text = "Train", command = train)
# Create a Driving Button and attached to driving function
button6 = Button(root, text = "Driving", command = driving)
# Create a Walking Button and attached to walking function
button7 = Button(root, text = "Walking", command = walking)
# Create a CLEAR Button and attached to del_modes function
button8 = Button(root, text = "CLEAR",
fg = "black", bg = "red",
command = del_modes)
# grid method is used for placing
# the widgets at respective positions
# in table like structure .
button1.grid(row = 1, column = 2)
button2.grid(row = 2, column = 2)
button3.grid(row = 6, column = 1)
button4.grid(row = 9, column = 1)
button5.grid(row = 4, column = 0)
button6.grid(row = 4, column = 1)
button7.grid(row = 4, column = 2)
button8.grid(row = 5, column = 2)
# Start the GUI
root.mainloop()
Now inside this python script just replace the api_key and then run this by typing the below command
python app.py
