Python – Get IP address of visitors using Flask for Python

flaskip addresspythonwerkzeug

I'm making a website where users can log on and download files, using the Flask micro-framework (based on Werkzeug) which uses Python (2.6 in my case).

I need to get the IP address of users when they log on (for logging purposes).
Does anyone know how to do this? Surely there is a way to do it with Python?

Best Answer

See the documentation on how to access the Request object and then get from this same Request object, the attribute remote_addr.

Code example

from flask import request
from flask import jsonify

@app.route("/get_my_ip", methods=["GET"])
def get_my_ip():
    return jsonify({'ip': request.remote_addr}), 200

For more information see the Werkzeug documentation.

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Python – Replacements for switch statement in Python

The original answer below was written in 2008. Since then, Python 3.10 (2021) introduced the match-case statement which provides a first-class implementation of a "switch" for Python. For example:

def f(x):
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        case 'b':
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        case _:        
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The match-case statement is considerably more powerful than this simple example.

You could use a dictionary:

def f(x):
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Python – How to get the current time in Python

Use:

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>>> datetime.datetime.now()
datetime.datetime(2009, 1, 6, 15, 8, 24, 78915)

>>> print(datetime.datetime.now())
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And just the time:

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>>> print(datetime.datetime.now().time())
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>>> from datetime import datetime

Then remove the leading datetime. from all of the above.

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