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MichelleDalalJian/py4e_ex_12

Created October 7, 2017 14:53
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Exploring the HyperText Transport Protocol You are to retrieve the following document using the HTTP protocol in a way that you can examine the HTTP Response headers. http://data.pr4e.org/intro-short.txt There are three ways that you might retrieve this web page and look at the response headers: Preferred: Modify the socket1.py program to retrie…
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py4e_ex_12
import socket
mysock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
mysock.connect(('data.pr4e.org', 80))
cmd = 'GET http://data.pr4e.org/intro-short.txt HTTP/1.0\r\n\r\n'.encode()
mysock.send(cmd)
while True:
data = mysock.recv(512)
if (len(data) < 1):
break
print(data.decode())
mysock.close()
@sonai1504
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if u want to run this program on cmd go to the folder where the file is located and open cmd from that folder by clicking on adress bar and typing cmd there.Then run that program by python "name of your file".py.
That should do.
C:\Users\User\PycharmProjects\pythonProject>python socket.py
C:\Users\User\PycharmProjects\pythonProject>py socket.py
Traceback (most recent call last):
File "socket.py", line 1, in
import socket
File "C:\Users\User\PycharmProjects\pythonProject\socket.py", line 3, in
mysock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
AttributeError: partially initialized module 'socket' has no attribute 'AF_INET' (most likely due to a circular import)

i am getting this error if i am following these steps and if i am writing 'telnet data.pr4e.org 80' then pasting the URL given in the assignment it is showing:
HTTP/1.1 400 Bad Request
Date: Sat, 31 Oct 2020 18:45:33 GMT
Server: Apache/2.4.18 (Ubuntu)
Content-Length: 308
Connection: close
Content-Type: text/html; charset=iso-8859-1

                                              <html><head>
                                                          <title>400 Bad Request</title>
                                                                                        </head><body>
                                                                                                     <h1>Bad Request</h1>
 <p>Your browser sent a request that this server could not understand.<br />
                                                                            </p>
                                                                                <hr>
                                                                                    <address>Apache/2.4.18 (Ubuntu) Server at do1.dr-chuck.com Port 80</address>
                                        </body></html>

Connection to host lost.

please help me.

@Yerkonite
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i followed this process but got a traceback in line 1 and line 3

The same here. Have you found what was causing these tracebacks?

@Immaculate75
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Last-Modified:
Sat, 13 May 2017 11:22:22 GMT
ETag:
1d3-54f6609240717
Content-Length:
467
Cache-Control:
max-age=0, no-cache, no-store, must-revalidate
Content-Type:
text/plain

This is working.

@Eduard0Hdz
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Last-Modified:
Sat, 13 May 2017 11:22:22 GMT
ETag:
1d3-54f6609240717
Content-Length:
467
Cache-Control:
max-age=0, no-cache, no-store, must-revalidate
Content-Type:
text/plain

This is working.

@takenbydonuts
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1

THIS IS WORKING:
Last-Modified:
Sat, 13 May 2017 11:22:22 GMT
ETag:
1d3-54f6609240717
Content-Length:
467
Cache-Control:
max-age=0, no-cache, no-store, must-revalidate
Content-Type:
text/plain

@castlewhites
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![Error](https://user-images.githubusercontent.com/89157542/132367328-d2420673-fed3-4f9a-8366-6e56374accf8.PNG
can you help me?

@maulya230
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maulya230 commented Dec 27, 2021 •
edited
Loading

Server: Apache/2.4.18 (Ubuntu)
Last-Modified: Sat, 13 May 2017 11:22:22 GMT
ETag: "1d3-54f6609240717"
Accept-Ranges: bytes
Content-Length: 467
Cache-Control: max-age=0, no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Connection: close
Content-Type: text/plain

@youneshamouddo
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thank you

@tokyohmachine
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This is very simple. First, put the code inside pycharm, you need only change the - Preferred: Modify the [socket1.py]
The code given in coursera:
image

Code in Pycharm:
image

Then RUN, you will get the answer for the task.

@jjtlemall
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wonderful!

@mde-2590
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mde-2590 commented Aug 15, 2022 •
edited
Loading

what is cache control??

If you run the code in what ever IDE (Pycharm for example) you are using you will see:

Last-Modified: Sat, 13 May 2017 11:22:22 GMT
ETag: "1d3-54f6609240717"
Accept-Ranges: bytes
Content-Length: 467
Cache-Control: max-age=0, no-cache, no-store, must-revalidate
Pragma: no-cache
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Connection: close
Content-Type: text/plain

Why should you learn to write programs?

Writing programs (or programming) is a very creative
and rewarding activity. You can write programs for
many reasons, ranging from making your living to solving
a difficult data analysis problem to having fun to helping
someone else solve a problem. This book assumes that
everyone needs to know how to program, and that once
you know how to program you will figure out what you want
to do with your newfound skills.

Process finished with exit code 0

Ensure you are highlighting the code if you have not saved it otherwise it will exit with a code 0

@FahadJamshaid
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This is very simple. First, put the code inside pycharm, you need only change the - Preferred: Modify the [socket1.py] The code given in coursera: image

Code in Pycharm: image

Then RUN, you will get the answer for the task.

Hi. With the same code running in Bracket text editor I am getting error in cmd. Can anyone please help
6 6 23

@tahira2k16
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  1. save it as newsocket.py in any other directory, not in which you're currently working.
  2. problem
    image

solution
image

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