Improve templating and use pandas for contacts

README.md

@@ -8,4 +8,14 @@ Easily send mails via SMTP and python
 3. Adapt `message.txt` and import `contacts.csv`
 
 ## Usage
-```python mail.py```
+```python mail.py```
+
+## Templating
+You can use the keys from your `csv` directly, prepending a `$` sign. For example:
+```
+Hello $name, your value is $value!
+```
+would look like the following:
+```
+Hello h4xx0r, your value is 1337!
+```

mail.py

@@ -5,48 +5,33 @@ from string import Template
 from email.mime.multipart import MIMEMultipart
 from email.mime.text import MIMEText
 
-import csv
+import pandas as pd
 
 from vars import *
 
+
 def get_contacts(filename):
     """
     Return the lists containing the infos
     read from a file specified by filename.
     """
-      
-    snames = []
-    fnames  =[]
-    emails = []
-    pwd = []
-    user = []
-    with open(filename, mode='r', encoding='utf-8') as contacts_file:
-        for a_contact in contacts_file:
-            snames.append(a_contact.split()[0])
-            fnames.append(a_contact.split()[1])
-            emails.append(a_contact.split()[2])
-            pwd.append(a_contact.split()[3])
-            user.append(a_contact.split()[4])
-    return snames, fnames, emails, pwd, user
 
-def read_csv(filename):
-    with open(filename, newline='') as csvfile:
-        data = list(csv.reader(csvfile))
-    return data
+    return pd.read_csv(filename)
+
 
 def read_template(filename):
     """
-    Returns a Template object comprising the contents of the 
+    Returns a Template object comprising the contents of the
     file specified by filename.
     """
-    
+
     with open(filename, 'r', encoding='utf-8') as template_file:
         template_file_content = template_file.read()
     return Template(template_file_content)
 
+
 def main():
-    # names, emails, reda, ws = get_contacts('mycontacts.txt') # read contacts
-    contacts = read_csv('contacts.csv')
+    contacts = get_contacts('contacts.csv')
     message_template = read_template('message.txt')
 
     # set up the SMTP server
@@ -55,29 +40,31 @@ def main():
     s.login(MY_ADDRESS, PASSWORD)
 
     # For each contact, send the email:
-    for i in range(len(contacts)):
+    for i in contacts.index:
         msg = MIMEMultipart()       # create a message
 
         # add in the actual person name to the message template
-        message = message_template.substitute(SNAME=str(contacts[i][0]), FNAME=contacts[i][1], PWD=contacts[i][3], USER =contacts[i][4])
+        contact_dict = {col: contacts[col][i] for col in contacts.columns}
+        message = message_template.substitute(contact_dict)
 
         # Prints out the message body for our sake
         print(message)
 
         # setup the parameters of the message
-        msg['From']=MY_ADDRESS
-        msg['To']=contacts[i][2]
-        msg['Subject']=SUBJECT
-        
+        msg['From'] = MY_ADDRESS
+        msg['To'] = contacts["email"][i]
+        msg['Subject'] = SUBJECT
+
         # add in the message body
         msg.attach(MIMEText(message, 'html'))
-        
+
         # send the message via the server set up earlier.
         s.send_message(msg)
         del msg
-        
+
     # Terminate the SMTP session and close the connection
     s.quit()
-    
+
+
 if __name__ == '__main__':
-    main()
+    main()