main.py: Add script

The script fetch the data from server in .json format
and display the useful information. Trial API key is
given for a valid time.

Author: sangamcse

api.json

@@ -0,0 +1,3 @@
+{
+    "api": "c19kd5k38j"
+}

main.py

@@ -0,0 +1,82 @@
+import json
+import logging
+import os.path
+import requests
+
+from tabulate import tabulate
+
+
+def getAPI():
+    __dir__ = os.path.dirname(__file__)
+    apifile = os.path.join(__dir__, 'api.json')
+    with open(apifile, encoding='utf-8') as api_data:
+        api = json.loads(api_data.read())
+
+    return api['api']
+
+
+def getData(url):
+    try:
+        response = requests.get(url)
+    
+    except Exception as e:
+        raise e
+
+    content = response.json()
+    if content['response_code'] is 200:
+        displayInfo(content)
+    else:
+        logging.warn("Given information is wrong...")
+
+
+def displayInfo(content):
+    pnr = content['pnr']
+    train_no = content['train']['number']
+    train_name = content['train']['name']
+    from_name = content['from_station']['name']
+    boarding_name = content['boarding_point']['name']
+    upto_name = content['reservation_upto']['name']
+    journey_class = content['journey_class']['code']
+    journey_date = content['doj']
+    if content['chart_prepared']:
+        chart_status = 'Yes'
+    else:
+        chart_status = 'No'
+    passenger_count = content['total_passengers']
+    status = [x for x in content['passengers']]
+    booking_status = [status[i]['booking_status'] for i in range(len(status))]
+    current_status = [status[i]['current_status'] for i in range(len(status))]
+    
+    msg = ('\n*** You Queried For : PNR Number: {} ***\n'
+           'Charting Status: {}\tNo. of Passengers: {}\n'.format(
+            pnr, chart_status, passenger_count))
+    table = tabulate([[train_no, train_name, journey_date, from_name, 
+                       upto_name, upto_name, boarding_name, journey_class]],
+                     headers=['Train Number', 'Train Name', 'Boarding Date',
+                              'From', 'To', 'Reserved Upto', 'Boarding Point',
+                              'Class'])
+    tablelist = [[i, booking_status[i], current_status[i]] for i \
+                 in range(passenger_count)]
+    passenger_table = tabulate(tablelist,
+                               headers=['S. No.', 'Booking Status (Coach No ,'
+                                        ' Berth No., Quota)', '*Current Status'
+                                        ' (Coach No , Berth No.)'])
+    print(msg)
+    print(table)
+    print(passenger_table)
+    
+
+def main():
+    pnr = str(input("Enter your PNR: "))
+    if len(pnr) is not 10:
+        logging.warn("Enter a valid PNR...")
+        return
+
+    api = getAPI()
+    url = ("https://api.railwayapi.com/v2/pnr-status/pnr/{}/apikey/"
+           "{}".format(pnr, api))
+    getData(url)  
+
+
+if __name__ == '__main__':
+    main()