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Editor to share with you what are the knowledge points of network application development in python, I believe most people do not know much about it, so share this article for your reference. I hope you will gain a lot after reading this article. Let's learn about it together.

Send an email

Today, when instant messaging software is so developed, email is still one of the most widely used applications on the Internet. companies send job offers to candidates, websites send users a link to activate accounts, and banks promote their wealth management products to customers almost all through e-mail, and these tasks should be done automatically by the program.

Just as we can use HTTP (Hypertext transfer Protocol) to visit a website, SMTP (simple Mail transfer Protocol) is used to send mail. SMTP is also an application-level protocol based on the reliable data transfer service provided by TCP (Transmission Control Protocol). It specifies the details of how the sender communicates with the server that sent the message. The smtplib module in Python simplifies these operations into a few simple functions.

The following code demonstrates how to send mail on Python.

From smtplib import SMTPfrom email.header import Headerfrom email.mime.text import MIMETextdef main (): # Please modify the sender and receiver of the following email sender = 'abcdefg@126.com' receivers = [' uvwxyz@qq.com', 'uvwxyz@126.com'] message = MIMEText (' sample code for sending mail using Python.', 'plain',' utf-8') message ['From'] = Header (' Wang Dawei' 'utf-8') message [' To'] = Header ('Luo Hao', 'utf-8') message [' Subject'] = Header ('sample Code experiment email', 'utf-8') smtper = SMTP (' smtp.126.com') # Please modify the login password smtper.login (sender, 'secretpass') smtper.sendmail (sender, receivers) below Message.as_string () print ('email sent complete!') if _ _ name__ ='_ _ main__': main ()

If you want to send a message with an attachment, you can do this as follows.

From smtplib import SMTPfrom email.header import Headerfrom email.mime.text import MIMETextfrom email.mime.image import MIMEImagefrom email.mime.multipart import MIMEMultipartimport urllibdef main (): # create a mail message object with attachments message = MIMEMultipart () # create text content text_content = MIMEText ('check this month's data in the attachment', 'plain',' utf-8') message ['Subject'] = Header (' month's data' 'utf-8') # add text content to the message object message.attach (text_content) # read the file and add the file as an attachment to the message object with open (' / Users/Hao/Desktop/hello.txt', 'rb') as f: txt = MIMEText (f.read (),' base64' 'utf-8') txt [' Content-Type'] = 'text/plain' txt [' Content-Disposition'] = 'attachment Filename=hello.txt' message.attach (txt) # reads the file and adds it as an attachment to the mail message object with open ('/ Users/Hao/Desktop/ summary data .xlsx', 'rb') as f: xls = MIMEText (f.read (),' base64', 'utf-8') xls [' Content-Type'] = 'application/vnd.ms-excel' xls [' Content-Disposition'] = 'attachment Filename=month-data.xlsx' message.attach (xls) # create SMTP object smtper = SMTP ('smtp.126.com') # Open secure connection # smtper.starttls () sender =' abcdefg@126.com' receivers = ['uvwxyz@qq.com'] # Log in to the SMTP server # Please note that you are not logging in with a password but a mail client authorization code # there is a doubt about this Readers can contact their own mail server customer service smtper.login (sender) 'secretpass') # send mail smtper.sendmail (sender, receivers, message.as_string ()) # disconnect from the mail server smtper.quit () print (' send complete!') if _ _ name__ = ='_ _ main__': main ()

Send a text message

Sending SMS is also a common function in the project. The registration code, verification code and marketing information of the website are basically sent to users through SMS. In the following code, we use the Mu100 million wireless SMS platform (this platform provides 50 free SMS messages for registered users and demo for sending SMS messages in common development languages, and you can log in to the website and configure SMS messages on the user's self-service page). Of course, there are many SMS platforms in China. Readers can choose according to their own needs (usually taking into account the cost budget, SMS arrival rate, ease of use and other indicators). If you need to use SMS service in commercial projects, it is recommended to purchase the package service provided by SMS platform.

Import urllib.parseimport http.clientimport jsondef main (): host = "106.ihuyi.com" sms_send_uri = "/ webservice/sms.php?method=Submit" # the parameters below need to enter your registered account and the corresponding password params = urllib.parse.urlencode ({'account':' your own account', 'password':' your own password', 'content':' your verification code is: 147258). Please don't divulge the CAPTCHA to others.' , 'mobile':' recipient's mobile phone number', 'format':'json'}) print (params) headers = {' Content-type': 'application/x-www-form-urlencoded',' Accept': 'text/plain'} conn = http.client.HTTPConnection (host, port=80, timeout=30) conn.request (' POST', sms_send_uri, params) Headers) response = conn.getresponse () response_str = response.read () jsonstr = response_str.decode ('utf-8') print (json.loads (jsonstr)) conn.close () if _ _ name__ = =' _ main__': main () all the contents of the article "what are the knowledge points of web application development in python" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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