repo init

.gitignore

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+# Repository specific
+.idea
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/

client.py

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+import socket
+import threading
+
+nickname = input("Nickname: ")
+
+client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+client.connect(('127.0.0.1', 55555))
+
+def receive():
+    while True:
+        try:
+            message = client.recv(1024).decode('ascii')
+            if message == 'NICK':
+                client.send(nickname.encode('ascii'))
+            else:
+                print(message)
+        except:
+            print("Error! Disconnecting.")
+            client.close()
+            break
+
+# Sending Messages To Server
+def write():
+    while True:
+        message = '{}: {}'.format(nickname, input(''))
+        client.send(message.encode('ascii'))
+
+# Starting Threads For Listening And Writing
+receive_thread = threading.Thread(target=receive)
+receive_thread.start()
+
+write_thread = threading.Thread(target=write)
+write_thread.start()

server.py

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+import socket
+import threading
+
+# Connection Data
+host = '127.0.0.1'
+port = 55555
+
+# Starting Server
+server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+server.bind((host, port))
+server.listen()
+
+# Lists For Clients and Their Nicknames
+clients = []
+nicknames = []
+
+
+# Sending Messages To All Connected Clients
+def broadcast(message):
+    for client in clients:
+        client.send(message)
+
+
+# Handling Messages From Clients
+def handle(client):
+    while True:
+        try:
+            # Broadcasting Messages
+            message = client.recv(1024)
+            broadcast(message)
+        except:
+            # Removing And Closing Clients
+            index = clients.index(client)
+            clients.remove(client)
+            client.close()
+            nickname = nicknames[index]
+            broadcast('{} left!'.format(nickname).encode('ascii'))
+            nicknames.remove(nickname)
+            break
+
+
+# Receiving / Listening Function
+def receive():
+    while True:
+        # Accept Connection
+        client, address = server.accept()
+        print("Connected with {}".format(str(address)))
+
+        # Request And Store Nickname
+        client.send('NICK'.encode('ascii'))
+        nickname = client.recv(1024).decode('ascii')
+        nicknames.append(nickname)
+        clients.append(client)
+
+        # Print And Broadcast Nickname
+        print("Nickname is {}".format(nickname))
+        broadcast("{} joined!".format(nickname).encode('ascii'))
+        client.send('Connected to server!'.encode('ascii'))
+
+        # Start Handling Thread For Client
+        thread = threading.Thread(target=handle, args=(client,))
+        thread.start()
+
+
+receive()