Added solutions to problem 1, 2, 3 & 4

Week-1/chay2199/README.md

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+# GitHeat
+# Projects for summer
+This program uses modules like urllib, BeautifulSoup, Pandas, Selenium etc to find train schedules when user gives train number as an input.
+The train schedule includes the following information:
+1) Train Name
+2) Operation Dates
+3) Arrival Time
+4) Departure Time
+5) Station Name with code
+6) Route
+7) Day of running
+
+The information above is printed in json as well as in a table format.

Week-1/chay2199/Train+schedule+by+number.py

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+
+# coding: utf-8
+
+# In[10]:
+
+
+import bs4 as bs
+import urllib.request
+import pandas as pd
+from selenium import webdriver
+
+
+url = 'https://www.cleartrip.com/trains/'
+x = input() #Takes train number as input in the variable x
+finalUrl = url + x + '/'
+
+sauce = urllib.request.urlopen(finalUrl).read()
+
+soup = bs.BeautifulSoup(sauce,'lxml')
+trainDetails = soup.h1.text
+
+print('Train Details: ',trainDetails)
+
+for spans in soup.find_all('span' , class_ = 'days-op'):
+    print('Operational Days: ', spans.text)
+
+df1=pd.read_html(finalUrl, header=0)[0]
+out = df1.to_json(orient = 'records')
+
+print(out, '\n\n\n\n\n')
+print(df1[['Station name (code)', 'Arrives', 'Departs', 'Stop time',
+            'Distance travelled', 'Day', 'Route']])
+
+driver = webdriver.Firefox() #Opens the site from where information
+driver.get(finalUrl)         #is taken.
+