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python programing

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  1. How to use listed below in command line (shell)?
    Change into a directory and list the contents
    Rename a file
    Create a new directory
    Create a new text file, and save it to a directory you just created
  2. How to use command-line Git or one of the many Git GUI clients like TortoiseGit, GitEye, Gitbox? Please list them.
  3. Please write a program, in any language, that counts down from 100 to 0 in steps of 2, and prints the numbers to the console or screen.
  4. Write a program, in python that iterates the numbers from 1 to 100.
    For any value divisible by 4, the program should print "Go".
    For any value divisible by 5, the program should print "Figure".
    For any value divisible by 4 and 5, the program should print "GoFigure".
posted Mar 13, 2021 by Hagos Tadese

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I cannot understand the below part of a python program. 
while len(word_letters) > 0 and lives > 0:
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        # what current word is (ie W - R D)
        word_list = [letters if letters in used_letters else '-' for letters in word]
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https://www.youtube.com/watch?v=8ext9G7xspg
the part which i am finding difficult to understand appears at 32:15 of the above video.
i don't know how to highlight a part of a code while posting a question on this forum. this is my first post.
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Python Cramers' V Handling Missing Values & Date Fields

I'm working on association analysis on my dataset that consist majorly of categorical features and I'm using Cramers' V and Theils U statistical measures for showcasing the association metrics.

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If there are some missing values in some of the columns in my dataset, how should I handle them while calculation Cramers' V and theils u metrics? Shall I replace the missing value with some dummy value?
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Using mitmproxy inside a Python script to connect to upstream proxy (with user & password)

I am trying to use mitmproxy behind a company proxy that requires a user/password login.

The setup is: Local PC's browser -> mitmproxy (on local PC) -> company proxy -> internet.

Based on this SO thread, this is how you use mitmproxy within a Python program. This example works fine when there's no proxy.

from mitmproxy.options import Options
from mitmproxy.proxy.config import ProxyConfig
from mitmproxy.proxy.server import ProxyServer
from mitmproxy.tools.dump import DumpMaster

class Addon(object):
    def __init__(self):
        pass

    def request(self, flow):
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        pass

    def response(self, flow):
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        pass


if __name__ == "__main__":

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    m.server = ProxyServer(config)
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    try:
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Assuming the company proxy is at IP "1.2.3.4" port 3128 and requires a login USER and PASSWORD, how can I change this script to have mitproxy use that proxy instead of going to the internet directly?

Addition info: I am not using mitmdump with the script-parameter to run this script. The goal is to run this from Python 3.8 with a pip-installed mitmproxy

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