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Installing Python packages and managing Virtual Environments

How to install a package?

# https://packaging.python.org/en/latest/tutorials/installing-packages/
$ python3 -m pip --version
$ python3 -m ensurepip --default-pip

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from timeit import repeat
from statistics import mean

def stats(stmt, r=100):
  res = repeat(stmt, globals=globals(), repeat=r)
  print(f'Avg: {mean(res)}\nMin: {min(res)}\nMax: {max(res)}')

"""
def foo():
  return 1+1

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def positives(n):
    yield n
    yield from positives(n+1)
    
    
def primes(s):
    n = next(s)
    yield n
    yield from primes(i for i in s if i%n != 0)
    

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def next_(n, x):
    return (x + n / x) / 2

# Repeats infinitely
def repeat(f, a):
    yield a
    for v in repeat(f, f(a)):
        yield v

# Delimiter       

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import bisect
import random

# bisect()
def grade(score, breakpoints=[60, 70, 80, 90], grades='FDCBA'):
    i = bisect.bisect(breakpoints, score)
    return grades[i]
  
[grade(score) for score in [33, 99, 77, 70, 89, 90, 100]]
# ['F', 'A', 'C', 'C', 'B', 'A', 'A']

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from datetime import datetime
import calendar

def calc_last_month_range(date: datetime) -> tuple:
    if date.month == 1:
        ini_date = datetime(date.year - 1, 12, 1)
    else:
        ini_date = datetime(date.year, date.month - 1, 1)

    end_date = datetime(

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from socket import *

def createServer():
     serversocket = socket(AF_INET, SOCK_STREAM)
     try:
         serversocket.bind(('localhost',9000))
         print('Starting server at http://127.0.0.1:9000/')
         serversocket.listen(5)
         while(1):
             (clientsocket, address) = serversocket.accept()

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import unicodedata

def normalize_str(string: str) -> str:
  
    non_ascii = (
        unicodedata.normalize("NFKD", string).encode("ascii", "ignore").decode()
    )
    
    string = non_ascii.lower().replace(" ", "_")
    

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fn print_type<T>(_: &T) {
    println!("{}", std::any::type_name::<T>())
}