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Python myqsl.connector connection error on pyton.org

I have a mysql server on my computer. I did port fowarding on my modem. I checked port is open or not with signal sites and return success answer. When i try connect on my pc with host = "localhost" i returned success answer. But when i try connect mysql server with python.org's shell, i returned connection error same like this:
Traceback (most recent call last):
File “/usr/lib/python3.8/site-packages/mysql/connector/network.py”, line 529, in open_connection
self.sock.connect(sockaddr)
ConnectionRefusedError: [Errno 111] Connection refused
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File “”, line 1, in
File “/usr/lib/python3.8/site-packages/mysql/connector/init.py”, line 177, in connect
return MySQLConnection(*args, **kwargs)
File “/usr/lib/python3.8/site-packages/mysql/connector/connection.py”, line 104, in init
self.connect(**kwargs)
File “/usr/lib/python3.8/site-packages/mysql/connector/abstracts.py”, line 781, in connect
self._open_connection()
File “/usr/lib/python3.8/site-packages/mysql/connector/connection.py”, line 284, in _open_connection
self._socket.open_connection()
File “/usr/lib/python3.8/site-packages/mysql/connector/network.py”, line 531, in open_connection
raise errors.InterfaceError(
mysql.connector.errors.InterfaceError: 2003: Can’t connect to MySQL server on ‘myipadress:3306’ (111 Con
nection refused)
How can i connect my mysql server ?

In order to encounter this error first do the following:
Make sure the host is in the format 127.0.0.1 and there are no / or \ in the host name
Check if you have specified all the correct info about the server like passwords, user, root, etc
Make sure the server is active and there is no fire wall blocking your access
Remove all the unwanted users from the server

Accessing FTP server with Python fails with "getaddrinfo" error

I am trying to access the open DLP Test FTP server as a practice. I keep getting a getaddrinfo error but I am unsure of where I'm going wrong. I am using Python 2 on a Windows 10, and have already checked that I am not behind a proxy.
Code:
from ftplib import FTP
ftp = FTP('ftp://ftp.dlptest.com/')
...
Error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\ftplib.py", line 120, in __init__
self.connect(host)
File "C:\Python27\lib\ftplib.py", line 135, in connect
self.sock = socket.create_connection((self.host, self.port), self.timeout)
File "C:\Python27\lib\socket.py", line 553, in create_connection
for res in getaddrinfo(host, port, 0, SOCK_STREAM):
socket.gaierror: [Errno 11001] getaddrinfo failed
Any help is appreciated!

Use
ftp = FTP('ftp.dlptest.com')
instead.
The first argument of FTP constructor is host – a hostname or an IP address – not a URL.

SOCKET ERROR: [Errno 111] Connection refused

I am using simple python lib for the SMTP
But i am getting this error:
import smtplib
smtpObj = smtplib.SMTP('localhost')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/smtplib.py", line 249, in __init__
(code, msg) = self.connect(host, port)
File "/usr/lib/python2.7/smtplib.py", line 309, in connect
self.sock = self._get_socket(host, port, self.timeout)
File "/usr/lib/python2.7/smtplib.py", line 284, in _get_socket
return socket.create_connection((port, host), timeout)
File "/usr/lib/python2.7/socket.py", line 571, in create_connection
raise err
socket.error: [Errno 111] Connection refused
Using python-2.7

Start a simple SMTP server with Python like so:
python -m smtpd -n -c DebuggingServer localhost:1025
or you can also try gmail smtp setting
server = smtplib.SMTP(host='smtp.gmail.com', port=587)

if you:
python -m smtpd -n -c DebuggingServer localhost:1025
as suggested by Allen Thomas, then make sure you init:
server = smtplib.SMTP(host='localhost', port=1025)
with matching port number, here: 1025.

You need to Enable the Mode of Protocol you are using.Then it will create Bidirectional interaction virtual connection between your device and script.
For Example the following script will require Telnet Mode to be Enabled so that it can call to another Device he is requesting for.
telA = connect(a)
telA.write("xcom Dial Number:43062#10.47.8.108\n")
time.sleep(10)
quit_telnet(telA)
print telA.read_all()

Connecting to Gmail from Python

I've been trying to connect to my Gmail account using python. imap is enabled.
import imaplib
imap_server = imaplib.IMAP4_SSL("imap.gmail.com",993)
# also tried imap_server = imaplib.IMAP4_SSL("imap.gmail.com"), doesnt work.
Traceback is :
Traceback (most recent call last):
File "<pyshell#2>", line 1, in <module>
imap_server = imaplib.IMAP4_SSL("imap.gmail.com",993)
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/imaplib.py", line 1202, in __init__
IMAP4.__init__(self, host, port)
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/imaplib.py", line 172, in __init__
self.open(host, port)
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/imaplib.py", line 1217, in open
IMAP4.open(self, host, port)
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/imaplib.py", line 248, in open
self.sock = self._create_socket()
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/imaplib.py", line 1205, in _create_socket
sock = IMAP4._create_socket(self)
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/imaplib.py", line 238, in _create_socket
return socket.create_connection((self.host, self.port))
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/socket.py", line 435, in create_connection
raise err
File "/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/socket.py", line 426, in create_connection
sock.connect(sa)
OSError: [Errno 65] No route to host

What OSError: [Errno 65] No route to host means is what it say: you can't get to that machine from your machine.
You can test that from outside of Python by opening up a terminal/DOS prompt and typing this:
ping imap.gmail.com
It's possible that this is actually a name lookup error, and you're somehow getting a bad address for imap.gmail.com. So, just to be sure, check by IP address too:
ping 74.125.129.108
ping 74.125.129.109
If ping works, you can check whether your router is for some reason just blocking TCP access to the host, e.g., with:
telnet imap.gmail.com
If it's working, this should either hang for a long time, or give you a connection-refused error; if it gives you a no-route-to-host error, it's the same problem you're seeing.
It's also possible that your router is specifically blocking port 993. You can test this too:
telnet imap.gmail.com 993
If it doesn't come back with something like "Connected to gmail-imap.l.google.com", same problem here too.
At any rate, once you've verified that this is a system or network configuration problem, not a programming problem, go ask for help with your system on the appropriate site.

Python FTP (from ftplib module) fails on login to SFTP server

I am doing the following
>> from ftplib import FTP
>> s = FTP('host','user','password') # Connect
and it fails giving the following
Traceback (most recent call last): File "<stdin>", line 1, in <module>
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ftplib.py", line 117, in __init__
self.connect(host)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ftplib.py", line 132, in connect
self.sock = socket.create_connection((self.host, self.port), self.timeout)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/socket.py", line 571, in create_connection
raise err socket.error: [Errno 60] Operation timed out
I know that host, user, passwd are correct
How do I debug/fix this error?

WinSCP (which you've otherwise been using to connect to the same server) supports SFTP and SCP, not FTP.
To write a Python program using SFTP, you should be using the Paramiko library.

Try doing it like this:
try:
s = FTP(host)
s.login(user, password)
except Exception, e:
print "The error was:", str(e)