Automatic Birthday mail sending with Python

 The first thing we do is import six libraries: 

• pandas
• datetime
• smtplib
• time
• requests
• win10toast 

Apart from this, Also create an Excel sheet for containing records like this: Name, Email, Contact, Birthday, and Year. 

Approach:

• For the sending email part, We define a sendEmail() function which will start a Gmail session, send the email, and quit the session. 
• For the SMS part, we must have an account on www.fast2sms.com from where we will get an API key. This API key is used to send SMS over mobile numbers using your account on fast2sms then We create a sendsms() function which will verify the API key and send SMS.
• In the driver code section, we read the data from Excel sheet and match today’s date with any of the birthdays. If there is a match, we call the sendEmail() and sendsms() functions and also we add the current year in the Excel sheet. Also, we have used ToastNotifier from win10toast library to show desktop notifications once the e-mail and SMS has been sent successfully.

Below is the implementation:

# import required packages 
import pandas as pd 
import datetime 
import smtplib 
import time 
import requests 
from win10toast import ToastNotifier 

# your gmail credentials here 
GMAIL_ID = 'your_email_here'
GMAIL_PWD = 'your_password_here'

# for desktop notification 
toast = ToastNotifier() 

# define a function for sending email 
def sendEmail(to, sub, msg): 
	
	# conncection to gmail 
	gmail_obj = smtplib.SMTP('smtp.gmail.com', 587) 
	
	# starting the session 
	gmail_obj.starttls()	 
	
	# login using credentials 
	gmail_obj.login(GMAIL_ID, GMAIL_PWD) 
	
	# sending email 
	gmail_obj.sendmail(GMAIL_ID, to, 
				f"Subject : {sub}\n\n{msg}") 
	
	# quit the session 
	gmail_obj.quit() 
	
	print("Email sent to " + str(to) + " with subject "
		+ str(sub) + " and message :" + str(msg)) 
	
	toast.show_toast("Email Sent!" , 
					f"{name} was sent e-mail", 
					threaded = True, 
					icon_path = None, 
					duration = 6) 

	while toast.notification_active(): 
		time.sleep(0.1) 

# define a funtion for sending sms		 
def sendsms(to, msg, name, sub): 
	
	url = "https://www.fast2sms.com/dev/bulk"
	payload = f"sender_id=FSTSMS&message={msg}&language=english&route=p&numbers={to}"
	
	headers = { 
		'authorization': "API_KEY_HERE", 
		'Content-Type': "application/x-www-form-urlencoded", 
		'Cache-Control': "no-cache", 
		} 

	response_obj = requests.request("POST", url, 
								data = payload, 
								headers = headers) 
	print(response_obj.text) 
	print("SMS sent to " + str(to) + " with subject :" +
		str(sub) + " and message :" + str(msg)) 
	
	toast.show_toast("SMS Sent!" , 
					f"{name} was sent message", 
					threaded = True, 
					icon_path = None, 
					duration = 6) 

	while toast.notification_active(): 
		time.sleep(0.1) 

# driver code 
if __name__=="__main__": 
	
	# read the excel sheet having all the details 
	dataframe = pd.read_excel("excelsheet.xlsx") 
	
	# today date in format : DD-MM 
	today = datetime.datetime.now().strftime("%d-%m") 
	
	# current year in format : YY 
	yearNow = datetime.datetime.now().strftime("%Y") 
	
	# writeindex list 
	writeInd = []												 

	for index,item in dataframe.iterrows(): 
		
		msg = "Many Many Happy Returns of the day dear " + str(item['NAME']) 
				
		# stripping the birthday in excel 
		# sheet as : DD-MM 
		bday = item['Birthday'].strftime("%d-%m")		 
		
		# condition checking 
		if (today == bday) and yearNow not in str(item['Year']):	 
			
			# calling the sendEmail function 
			sendEmail(item['Email'], "Happy Birthday", 
					msg)	 
			
			# calling the sendsms function 
			sendsms(item['Contact'], msg, item['NAME'], 
					"Happy Birthday") 
			
			writeInd.append(index)								 

	for i in writeInd: 
		
		yr = dataframe.loc[i,'Year'] 
		
		# this will record the years in which 
		# email has been sent 
		dataframe.loc[i,'Year'] = str(yr) + ',' + str(yearNow)			 

	dataframe.to_excel('excelsheet.xlsx', 
				index = False)